Re: [Drakelist] Drake R4B calibrator
Eagle PCB Cad will kick some butt, but it’s a steep learning curve Free, for the trial version with no restrictions other than no pcb bigger than 3 x 4 inches I would never use software that locks into one company, ties all your work to them. Mike Bryce WB8VGE proso...@sssnet.com On Jan 23, 2014, at 9:31 AM, cnixon cptc...@flash.net wrote: THe only problem with the captive freeware from the places like Express is that you cannot do anything else with the result. Not even print out the board layouts--only send them in to have them made. There are several free packages...some good, others not so much, that do the same and are under the GNU free software environmnet. I have used freePCB and the free version of viewmate from Pentalogix to generate standard gerber or plotting files for small boards--multi-layer are ok as well. Learning the full automated process from schematic capture thru net list, etc to final art is an interesting passtime. Starting with a fully documented schematic with bill of material makes the capture process work very well--but it is sometimes contrary to the way us older guys develop stuff! Cheers Curt KU8L On 1/23/2014 7:27 AM, Rick Lutzinger wrote: Have you looked at ExpressPCB/ExpressSCH? Great for what you are describing and the software is free. Rick KD6ZR On 1/22/2014 8:42 PM, Doug Smith wrote: Thanks Mike. Good info. I took a look at circad — whew! Pricey.. I’ve got a couple of projects that I’ve been wanting to have a board or two made up but not at that level of professionalism! 73, Doug, W7KF On Jan 20, 2014, at 10:04 PM, Mike Bryce proso...@sssnet.com wrote: Gang The purple pcbs are made by a company called osh park. He ( they) have a thing for purple. Even the mailing envelopes are purple. All the prototypes are purple. Go figure. I use circad for the pcb layout software. I am currently teaching myself eagle. That's been slow. Mike wb8vge Sent from my iPad Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Drake R4B calibrator
Boys and girls… I’ve been working on a replacement calibrator for the drake R4b. This calibrator will output 100, 50, and 25 kHz signals. You select the output with a dip jumper. The output also pulses on and off, and again, you can turn that off if you don’t want it. it has the same footprint as the original, and all wiring plugs into it with a MTA.100 header and plug. This project is about done. I’m in the process of having a small run of pcbs made. here is a link to some photos and ‘scope traces of its output http://theheathkitshop.com/downloads/Drake%20R4b%20calibrator/ Mike, wb8vge Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Drake R4B calibrator
Gang The purple pcbs are made by a company called osh park. He ( they) have a thing for purple. Even the mailing envelopes are purple. All the prototypes are purple. Go figure. I use circad for the pcb layout software. I am currently teaching myself eagle. That's been slow. Mike wb8vge Sent from my iPad Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad. On Jan 20, 2014, at 11:52 PM, Doug Smith d...@w7kf.com wrote: Found myself wondering the same thing. Where do you get your boards made? And, what software do you use to lay them out? I ask because I have two of the AC-4r kits and greatly admired the boards. 73, Doug, W7KF http://www.w7kf.com On Jan 20, 2014, at 9:36 PM, Jim Shorney jshor...@inebraska.com wrote: It's PURPLE! Now I want to go find an R4B just so I can buy one. Where do you get purple boards made, Mike? 73 -Jim NU0C ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Drake R4B calibrator
Gang, We all know that the RTL parts used in the calibrator are no longer being made. So, if your calibrator in your R4B goes kaput, then you're screwed. This year at the dayton hamvention I talked to Ron, WB4HFN, about the problem and he sent me a broken calibrator board. I needed the dimensions. So, after lots of paper and a few broken pencils, a prototype pcb has been made. Actually, three here made. Same foot print as the original. You have your choice of either 100, 50, or 25 kHZ markers. The marker pulses so you can find it on a crowed band so you're adjusting the dial to the marker instead of a SW broadcast. The pcb will have .100 MTA plug assembly that plugs into the board. It supplies the board with the necessary voltages, ground and output. There is no modification required to the radio, the front panel control will work just as before. A 3.2mHZ crystal is oscillated and divided by a 7 bit ripple counter. You can net the crystal freq with a trimmer on the pcb. There is an on-board regulator to keep the oscillator stable and an adjustment to control the speed of the pulses. This is a prototype board. The next run will have some corrections made and I am going to put in a jumper to select either a pulse output or no pulse (steady) output. The board is a hybrid. It has both through hole and surface mount components. The final cost of the pcb has yet to be determined. I don't know if I will offer it as a kit or fully assembled The surface mount parts are not the ones that look like paint dots, but they are small. If anyone is interested in the remaining two prototypes let me know and I'll assemble and test them. Right now, I don't have an R4B to install one, so will be looking for someone that can write up the procedure on how to install the new calibrator. Mike, WB8VGE Mike Bryce, WB8VGE the heathkit shop SunLight energy systems J e e p o|||o ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] need w4 wattmenter meter
well I had a bad night. I got this broke W4 from ebay. the pickup sensor was messed up. got that fixed. Set the calibration trimmers and the thing worked like a charm. except I couldn't set the needle to zero. the setting screw moved the needle, but not to zero. So I decided to fix it. Oh, bad idea! I managed to destroy the meter, pushed the bearings right out of the coil So, that's my sad story. Anyone have a spare meter they'd sell me? COuld be one from the tuner, console as they all used the 200 uA meter mike, wb8vge Mike Bryce proso...@sssnet.com ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] AC4 Upgrade Kits
Ron and all I have ordered in more pcbs for the AC4R kits. They should be here within two weeks give or take a few days. A large supply of parts have also been ordered. Contact me off of the list if you'd like one. DO NOT call Ron! He won't be able to help you. Mike wb8vge The heathkit Shop Sent from my iPhone On Mar 7, 2013, at 10:41 AM, Ron Baker wb4...@twlakes.net wrote: ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] The Heathkit Shop
Boys I'm alive and kicking. Will have the shop back up and running. Right now, I'm trying to catch my breath, and build up stock to shorten shipping times mike wb8vge the heathkitshop On Feb 17, 2013, at 9:47 PM, Eugene Balinski wrote: I emailed him about 2 weeks ago asking if his AC-4 rebuild kit was going to be available again any time soon, and so far have received no answer. I hope he is OK... 73 K1NR On Sun, 17 Feb 2013 18:16:40 +0100 Bob DeHaney bobdeha...@gmx.net wrote: Seems to be closed indefinitely... Vy 73, Bob DJ0RD/WU5T Message: 3 Date: Sun, 17 Feb 2013 06:46:22 -0500 From: Robert Look w8...@comcast.net To: drakelist@zerobeat.net Subject: [Drakelist] Amp Keyer Interface Message-ID: 5B5890311E7D4F259883D128C58BDE8C@winpro757b2579 Content-Type: text/plain; charset=iso-8859-1 I thought I would pass this along to the list: I recently bought Mike's WB8VGE (Heathkit Shop) AmpKeyer and used it to interface my L4B with my 2NT. I use a Y-cable attached to the VFO Key port on the back of the 2NT. The one side goes directly to the HA5 VFO and the other goes to the AmpKeyer. The AmpKeyer in turn connects to the L4B. It's a great product, easy to use, well made, and costs about the same as a tank of gas. Bob W8JHA -- next part -- An HTML attachment was scrubbed... URL: http://mailman.zerobeat.net/pipermail/drakelist/attachments/20130217/940709 fd/attachment-0001.html -- ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist End of Drakelist Digest, Vol 56, Issue 13 * ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist - Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] The Heathkit Shop
I can tell you that's simply not true! Mike, wb8vge On Feb 17, 2013, at 12:16 PM, Bob DeHaney wrote: Seems to be closed indefinitely... Vy 73, Bob DJ0RD/WU5T Message: 3 Date: Sun, 17 Feb 2013 06:46:22 -0500 From: Robert Look w8...@comcast.net To: drakelist@zerobeat.net Subject: [Drakelist] Amp Keyer Interface Message-ID: 5B5890311E7D4F259883D128C58BDE8C@winpro757b2579 Content-Type: text/plain; charset=iso-8859-1 I thought I would pass this along to the list: I recently bought Mike's WB8VGE (Heathkit Shop) AmpKeyer and used it to interface my L4B with my 2NT. I use a Y-cable attached to the VFO Key port on the back of the 2NT. The one side goes directly to the HA5 VFO and the other goes to the AmpKeyer. The AmpKeyer in turn connects to the L4B. It's a great product, easy to use, well made, and costs about the same as a tank of gas. Bob W8JHA -- next part -- An HTML attachment was scrubbed... URL: http://mailman.zerobeat.net/pipermail/drakelist/attachments/20130217/940709 fd/attachment-0001.html -- ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist End of Drakelist Digest, Vol 56, Issue 13 * ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] DRAKE C Line + Ten Tec Titan 425 Amp.
That's true... if you were to connect the drake transceiver to a drake amplifier life would be good. Birds would sing, the sun would shine. Life is good. But there is no standard as to how much, what flavor, or how much voltage or even if it should be positive or negative going on ALC. The ALC generated by an amplifier may as well be in Vulcan if the transceiver can't understand what to do with it. And while the engineers who included knew of its value, no one sat them down and decided on a standard. bottom line? Don't worry about the ALC mike, wb8vge On Feb 12, 2013, at 1:05 AM, Jim Shorney wrote: On Mon, 11 Feb 2013 21:08:45 -0500, Robert Henry wrote: Hi, Do not use ALC, 73 Why not? There are good technical reasons to use it, and the engineers who incuded it must have known them. 73 -Jim NU0C -- I aim to misbehave. - Captain Malcolm Reynolds, Serenity ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] AC-4 Load Bank
There wouldn't be much too it. all you need would be a hand full of resistors, using ohm's law to calculate the values. The values would be calculated at the max current the TRx series would draw. On would need to load the 6.3 v filament down to the same current as the tubes, if you don't the unloaded transformer would produce more voltage than normal since it's not powering the tubes. a couple of cheap LED digital panel mount meter could be used to monitor the voltages, plate, screen, and bias likewise a meter could be used to monitor current on the plate supply. I don't feel it would be necessary to monitor bias current or screen voltage current either. it would be an interesting project, that would make checking the supply quick. A few test points for an 'oscope to monitor ripple would be icing on the cake later mike, wb8vge On Nov 27, 2012, at 10:21 AM, Eugene Balinski wrote: I would be very interested in seeing the schematic.. 73 Gene K1NR PS I would not mind having one to check my Collins supply either : - ) On Mon, 26 Nov 2012 11:50:11 -0500 Al Parker anc...@ec.rr.com wrote: hi folks, Some yrs ago there was an article on building a test setup for Collins p.s.'s. I think it was in one of the Collins collector magazines, I can search it out. I came into possession of one of the units, and have made cable adapters for the AC-3/4's, and I think the HP-23's also. It is for voltage only, and did not include a load test, but I have been thinking of adding that to mine. 73, Al, W8UT www.boatanchors.org www.hammarlund.info There is nothing -- absolutely nothing -- half so much worth doing as simply messing about in boats Ratty, to Mole On 11/26/2012 11:30 AM, Hudson, John@CalEMA wrote: That would be a useful test jig. John N. Hudson III, Communications Coordinator 4050 Taylor St, MS 243 San Diego, CA 92110 6192509063 Cell On Nov 24, 2012, at 1:37 PM, Eugene Balinski euge...@nni.com wrote: All, Just wondering if anyone has put together an AC-4 load or test bank ? If so, could you share the plans ? I would like something that would allow one to connect the AC-4. switch on the AC, and measure the various voltage levels on test point, and perhaps even load the supply. Thanks in advance, 73 Gene K1NR - Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] AC-3 Ver AC-4
john, divide and conquer! First thing to do is disconnect the secondary from the transformer to the pcb. Unsolder the wires from the 'red' wires from the transformer to the diodes. then, the 'yellow' wire that goes to the diodes. Finally, disconnect the blue wire that go from the transformer to D7 this separates the transformer from the pcb assemble. Now, check to make sure you don't have one of the loose wire contacting the chassis and when you're happy, plug in the supply and turn it on. (via shorting pins 1 and 2 together) if the fuse holds, then power down and then re-connect just one of the of the sections at a time. If you find that when you, let's say the yellow wires, blow the fuse, then you have a wiring problem on the output side, most likely a short if the fuse blows with the secondaries removed from the pcb, then you have a short someplace in the wiring that you did when connecting the wires from the transformer to the pcb this should help you, mike, wb8vge On Mar 11, 2012, at 11:36 AM, John Gartman wrote: Well I installed a heath kit in my AC-4 and all mine does is blow the fuse when the jumper is between pins 1 and 2. I have gone over it many times. Wire for wire reds to reds yellows to yellows blues to blues etc. but it blows the 5 amp and a 6.5 amp slow blow and it blows that also. What I don't know is what capacitors to leave on the bottom there are 2 that go to ground. One from the fuse holder and one from L2 Are these needed? I did not assemble the new circuit board I bought it assembled. I know it is hard to guess without seeing and who knows what kind of goof ups a yahoo makes in wiring but anyone have an idea on where to look next ? It did not blow the fuse before the board was installed. Thanks John AG6GL ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] R4B Audio Distortion
I wonder. when drake assembled the radios, did they go through three or fours tubes per radio to get one that worked correctly? dosen't seem logical. And although you can't argue with the fact that the subing out the tube fixed the problem, I wonder if there is something hidden down someplace in the design that causes the problem just a thought Mike, wb8vge On Mar 9, 2012, at 4:25 PM, Randy WB4SPB wrote: Altogether, I bought two 6EH5s and one 6CA5. I already had a spare 6EH5, so, considering those alone, I had to try three to get one. If I count the 6CA5 that I bought, I had to try four to get one. The 6CA5 IS very similar. Some sources do not even have the 6EH5 and refer you to 6CA5. The tube that originally manifested the problem was a 6CA5 that had been in the radio for many years before these symptoms appeared. Whether the difference in 6EH5 and 6CA5 is important here, I cannot say. I'll stick with 6EH5s in the future, while I can get them. For sources I've seen that have both, the price is the same. 73, Randy WB4SPB - Original Message - From: Al Al Out of curiosity, how many 6EH5 tubes did you have to go through to find a good one? Al, n7ioh Payson, Arizona, USA ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fans
Boys and girls... I've got a new pcb that takes care of this problem. Here's how it works While the circuit has been designed to use either the 6 or 12 v ac filament, When you first turn your radio on, any of the Drake TR series or R series, the fan will come on to high speed. High speed fan is controlled by trimmer R11. The fan will run in high speed for about three seconds and then drop to low speed. That is adjusted by R12. you can set either the high speed or the low speed independently so you have enough voltage to get the fan running, then you slow it down as slow as you want it with just an adjustment of a trimmer. When you transmit, the external key line is pulled to ground and that forces the fan into high speed. This greatly increases the cooling of the PA tubes during tune up and long winded QSOs. When you go back to receive, the fan slows back down to the low setting. The entire pcb about 2 in square is mounted on a side of the pa compartment. There are no wires to cut or holes to drill. installation is completely reversible and operation completely transparent. Mike WB8VGE On Jan 8, 2012, at 10:11 PM, K9sqg wrote: Another approach I've found to work well is to use a 220 v fan that will start reliably and run consistently. Super quiet! 73, Evan, K9SQG -Original Message- From: Michael Kelly mkell...@gmail.com To: drakelist drakelist@zerobeat.net Sent: Sun, Jan 8, 2012 4:57 pm Subject: [Drakelist] Fans Okay here's another way to go at the fan plan question I wire two 110 vac fans in series so they run half speed. I can't hear them at all yet they move a good deal of air. The one above the finals on my TR4Cw is blowing straight up and the one in the front top in the middle is blowing in. I get a circular air flow pattern and the entire transceiver never even approaches warm. Just to make sure, (and for fun) I have a thermometer on top of the fan which sets on top of the one on the finals and the temperature hardly changes at all. To keep the fans stationary I use 4 pieces of coax seal rolled in a ball about half the size of a pea to serve as feet on each corner of the fan. It won't stick permanently but it will keep the quite stationary. So for me the question of blow out or in is answered by doing both As for providing power I have both the AC-4 and these series wired fans in a 3 way plug which is in turn plugged into a soft start circuit. Turn on the slow start switch turns on both the AC-4 and the fans. Try the two fan approach ... No need to modify anything in the transceiver. Cooler is better, eh? Happy New Year everyone. Michael n4mak Sent from my iPhone // At 07:45 PM 1/8/2012, Steve Wedge wrote: I've done all which-ways. I once used a 120V fan and used a big, honkin' wire-wound resistor to slow it down. I currently use a 12V fan with a thermistor over my finals, running off a 12V wall wart. the fan runs really slow until the temp gets to the point where the thermistor lets it go for full-speed. This fan cost me $5 at a hamfest. I've worked on a couple of R-4B's where the previous owner tapped off the filament supply with a diode and cap (half-wave rectifier). The fans he used are a little louder than my Xmitter fan. If you opt for using on-board power, you can tap off the filament supply for 12V and feed it to an RCA jack in the SPARE location, or just feed wires through that hole. I like just setting the fan on top, using rubber feet. No holes get drilled that way... YMMV, Steve Wedge, W1ES/4 Live free or die: Death is not the worst of evils. John Stark. All my computers have my signature with various pearls of wisdom appended thereto. From: mailto:mtruss8...@comcast.netMichael Sue Trussell Sent: Saturday, January 07, 2012 5:33 PM To: mailto:drakelist@zerobeat.netdrakelist@zerobeat.net Subject: [Drakelist] Need a fan for my T-4XC Transmitter? I need to replace my old 30 year old 110 volt fan on my transmitter. I know a few of you have used the twelve 12 volt fans and some have used the 110 volt version. What I would like to know where I can get power so I don't have to plug the fan in every time I turn the rig on. I would like the fan to come on when I turn on the power to the transmitter, any suggestions? Thank you in advance Michael J Trussell KA8ASN -- ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Need a fan for my T-4XC Transmitter?
or you could use one of my new fan controllers for the drake radios mike On Jan 8, 2012, at 7:45 PM, Steve Wedge wrote: I've done all which-ways. I once used a 120V fan and used a big, honkin' wire-wound resistor to slow it down. I currently use a 12V fan with a thermistor over my finals, running off a 12V wall wart. the fan runs really slow until the temp gets to the point where the thermistor lets it go for full-speed. This fan cost me $5 at a hamfest. I've worked on a couple of R-4B's where the previous owner tapped off the filament supply with a diode and cap (half-wave rectifier). The fans he used are a little louder than my Xmitter fan. If you opt for using on-board power, you can tap off the filament supply for 12V and feed it to an RCA jack in the SPARE location, or just feed wires through that hole. I like just setting the fan on top, using rubber feet. No holes get drilled that way... YMMV, Steve Wedge, W1ES/4 Live free or die: Death is not the worst of evils. John Stark. All my computers have my signature with various pearls of wisdom appended thereto. From: Michael Sue Trussell Sent: Saturday, January 07, 2012 5:33 PM To: drakelist@zerobeat.net Subject: [Drakelist] Need a fan for my T-4XC Transmitter? I need to replace my old 30 year old 110 volt fan on my transmitter. I know a few of you have used the twelve 12 volt fans and some have used the 110 volt version. What I would like to know where I can get power so I don’t have to plug the fan in every time I turn the rig on. I would like the fan to come on when I turn on the power to the transmitter, any suggestions? Thank you in advance Michael J Trussell KA8ASN ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] what's with all the increased drakelist traffic
Too damn cold to work on the antenna. Mike, wb8vge On Jan 2, 2012, at 8:38 PM, Chuck Grandgent wrote: mind you I'm not complaining, but in the last couple days seems like the list traffic has EXPLODED ! Chuck, K1OM ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Nastiest Drake Gear
Well at least he didn't say it was almost mint. Mike wb8vge Sent from my iPhone On Dec 21, 2011, at 7:46 AM, Steve Wedge w1es1...@earthlink.net wrote: I'm going to nominate this as the most-abused, nastiest-looking piece of Drake gear I've ever seen: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItemitem=260919992177ssPageName=ADME:B:SS:US:1123 I wouldn't even bet that the meter's working given how much moisture this one has seen. Enjoy those Drakes - but not underwater... Steve, W1ES/4 ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] On...or off?
I use to keep the tube rigs warm and happy until I got the electric bill They are turned off now. I'm not talking about one or two rigs either, there are dozens in the shack, and they hit the electric up to the point they had to go dark. mike Mike Bryce, WB8VGE the heathkit shop SunLight energy systems J e e p o|||o On Sep 10, 2011, at 9:54 AM, Garey Barrell wrote: Don - This definitely helps mitigate turn-on surge currents. It's critical to get the 'right size', and to mount it away from other components, as they DO get hot in operation. 'OH NO, 'wasted' power!' They also reduce the voltage applied to all components by a small amount, which doesn't hurt with today's considerably higher line voltages. 73, Garey - K4OAH Glen Allen, VA ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Cooling fan
Boys and girls, this was a timely subject I should have by the end of the month a few prototype pcbs for a fan controller for the drake radios. They will work with ANY TR series as well as any of the R series receivers Without getting into too much details, the circuit is contained on a small double sided pcb. Two wires are required with a third one optional power is stolen from the 6.3 v ac filament from the back of the dial light here's how it works when you turn your radio one, the fan will come up to full speed for three seconds then automatically drop down to a speed you set by a trimmer. The high to low speed is designed to give older fans or larger fans enough juice to start. After they get spinning, they drop to the other lower speed, again that one is adjustable, too. if you use the third wire connection, it goes to the external amp key line and when you go to tune, or transmit, the fan will automatically go back to high speed, again you set how fast 'high' speed is the pcb is about 2 square. will drive any 12 vdc fan up to 500 ma. will work on any tube base radio be it a transmitter or receiver. cost TBD, but about $25ish dollars mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. On Aug 22, 2011, at 11:49 PM, Don Cunningham wrote: It's a VERY good idea to run fans on the tops of our tube Drakes. Tubes are getting higher and higher and harder to find. A slow moving fan, sucking air out of the cabinet will lower the temperature to cool to the touch, in my experience!! I put rubber feet on the fans or a piece of insulating foam around the rim, and let them run. Good 220v ones will run slowly on 110v, and provide plenty of cooling. 73, Don, WB5HAK ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] tri band beam for sale
boys and girls. Cleaning the barn and lo and behold I found a mosley tri band beam. It's the full size and not the Jr edition too good to trash, but unless someone wants it, it's recycle bin bound. I figure about $50 from the recycle center, so that's the price. now the bad news I'm not about to ship this bad boy. it's too long and the ups charges would be out of sight. I'm in massillon/canton Ohio if you want, it you're going to have to come get it. But wait, there's more! Also, I have a GAP Titian (?) in the pile, too. It's damaged, but all the pieces parts are there. It's free with the tri bander again, you need to come and get this and I won't ship these monsters out. have a great memorial weekend mike... mike bryce proso...@sssnet.com ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] How much is an AC-4 power supply really worth? Some thoughts.
Kris, some of those supplies fall under the 'it worked the last time it was plugged in' so I'd be very careful about sticking a price on such a item. Some AC4Rs that have my rebuilt kit, and advertised as such, seem to bring in a lot more money, especially on ebay. but, that's just a non scientific observation on my part mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. On May 15, 2011, at 12:30 PM, Kris Merschrod wrote: Just some thoughts - no questions :) Recently I bought an AC-4 power supply (serial # above 55,000) that had parts missing. Basically, and I knew it, the $43 (included shipping) was buying a cabinet, the three pronged power cord, the main cord with cinch connector, the fuse holder, the L-C's for the power line, the terminal strips and the transformer. Mike's (WB8VRG) AC4R rebuild kit was also needed to complete the parts. I prefer to buy Mike's rebuild with the PCB assembled. For the extra $15 I know that it was done well. So, with the kit and postage another $86 goes into the project. In this case the cost of a set of components for an AC4 comes to $129.00. Then you have to add TLC, some enjoyable time at the bench and the proverbial smoke test. . Considering all of the warnings about how a failing supply can take down a rig, rebuilding is an insurance policy. Plus, when those caps melt down it is a real mess to clean up! So, when looking at Ron's (WB4HFN) price range for AC-4s from $48 to $193.50 with an average of $106, you have to assume that the above average ones are rebuilt. If a professional adds the TLC and does the rebuild, then another way shipping would be an additional cost for sure. Then the fair price should be at the top. Kris KM2KM Merschrod 123 Warren Road Ithaca, NY 14850 www.merschrod.net ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Heathkit shop AC4R status
Boys and girls. I figured this would be as good of a place as any. If you or anyone you know of has ordered an AC4R ps kit or a L7R kit I'll be shipping out those products as soon as I can. I'm waiting on some parts. Those should be here this coming week but... Friday night my wife had a heart attack. Her well being comes first. She's home. but her heart sounds like HW-16 with a bad crystal. A pacemaker is on top of the list. There's no drugs available. what she has I can't even say, let alone spell. Watching the monitors in the ER was kind of fascinating. Even I could see the missing beats and defective pulses. so, allow me to regroup. get my cats in line and will ship things out as soon as parts/time allows and as always, pop me a note, drop a call, and I'll send your $$$ back. I have a day job, this is hobby. Mike, wb8vge Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o If the facts don't fit the theory, change the facts. Albert Einstein ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] AC-4R kit
Boys and girls... Well since I'm getting beat up here, I may as well defend my honor. The biggest problem with installing the ac4r is the color codes used by drake changed over production runs. Some units use a gray wire, then next a black wire and sometimes a gray wire with a white tracer. the wire that goes to the radio cable carrying the the +800 volts is really problematic. 1. orange 2. orange with white tracer 3. white with orange tracer 4. red now, pick one! I can't write instructions that cover each and every deviation of wiring codes, so I try and hit in the middle. If there is a shortage wire in the kits, I send a notice that you should use this color instead of that color. If you have a supply with the transformer pointing the opposite way, then that needs to be addressed. Ooh, no threads on the transformer? Oops, you can't mount the PCB there. I'm trying to tell someone that I don't know— if they know what end a soldering iron get hot— and trying to installing a retrofit into a piece of gear 40 years old. It's not a simple task. The number of phone calls from guys who shouldn't be working with electricity scares me. Trying to explain to the guy on the other end how to set his simpson 260 up to read voltage. He didn't know! or the guy that calls on a Sunday night because the bias voltage reads backwards. He's upset because the voltage is negative and he can't figure out way. A hour long phone call shot in the ass trying to explain that bias voltage is negative in reference to ground. How would you react to that? Most of the time, guys don't read the instructions first, and then start cutting away. Then they find out they can't find the black wire from the radio cable because it was gray instead. If anyone would like to sit down and rewrite the instructions, please do so! I'll be more than happy to use YOUR instructions. As far as being in the mood to appreciate feedback, I accept all that I get. I accept criticism as well as most people. If something is wrong, I'll fix it. I just added more instructions and installation hints a week ago. If someone tells me that such and such step is confusing. I'll be more than happy to fix it. It's just words on a computer screen. Tap-tap, they're changed! But... Don't send me emails telling me how stupid I am. How your old sergeant knew more about drakes than I do. Or how you spent 60 years in the navy and my instructions don't meet the TMA codes you're use to. OR send me a photos of two AC4s with the guts ripped out and you don't understand why one has different wires than the other one. I keep and archive all emails, and I got some that would piss off the pope. Really puts you in the mood to appreciate feed back doesn't it? I mean, how you would react if you receive an email from someone you've never met and they tell you how stupid and F**K up you are and how this and that are all wrong in the instructions. How their 12 year old son could do a better job. Tell me Tom, how you would react to that? So, if you don't like the instructions, don't feel I accept and appreciate feedback, then sit down, re-wrire the them so they cover every version of the drake AC4, every possible deviation, and all possible obstacles. Make them crystal clear for everyone on every end of the spectrum. All the old navy comm techs, all the new hams, and everyone in between. And send them to me. I'll trash the one I did and be more than happy to include your new instructions in the kits. I accept Microsoft .doc and .docx files. And... I'll be sure to forward all the emails from people that can't figure out your instructions. And... I'm going to crawl back into the woodwork. This forum is not the place to discuss this any further. mike, wb8vge Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o If the facts don't fit the theory, change the facts. Albert Einstein On Feb 25, 2011, at 1:25 AM, Richard Knoppow wrote: - Original Message - From: TC Dailey daileyservi...@qwest.net To: drakelist@zerobeat.net Sent: Thursday, February 24, 2011 9:01 PM Subject: [Drakelist] AC-4R kit If you're using HIS kit, one HUGE caveat. His instructions are not very good, and he's really not in the mood to appreciate feedback, so here ya go: Follow his instructions for REMOVAL of all of the components to be replaced + remove ALL old caps (you don't need 'em - who cares what it looks like under the METAL SHIELD?...duh NOW - install the spacers and fit the board - leave ALL fasteners loose. Take the board back out. Now skip steps - lengthen all SECONDARY windings of the transformer (except for the filament - they've not been disconnected). RECONNECT all secondary windings to their pad points on the board. At this point most of the confusion is ended. You need only to connect the bias wires (he said they're white - he sent brown wire... no
Re: [Drakelist] AC4 heat Fan Summary
thought I'd toss my .02 in with a question on the tr series, a fan mounted to the rear of the pa compartment, should it blow in or suck out? since we're not trying to pressurize a compartment, there's plenty of holes in the cage and top cover, and since heat rises, it would seem to me that one would mount the fan so it would blow into and onto the final tubes To me, it seems a fan sucking air out of the pa compartment would have to compete with the natural convention of heat raising so, what's the word from the thermal gods? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o If the facts don't fit the theory, change the facts. Albert Einstein ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] sw1 help
Well dug out the little sw1 and it seems to be really deaf , can't even hear much of the local am broadcast stations. dug around with a clip lead on to the antenna and got a few stations. seems that the front is is not working any way, does anyone have a schematic for the sw1? thanks... mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o If the facts don't fit the theory, change the facts. Albert Einstein ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Using Heath HP-23 with TR-3 or Looking for an AC-3
gang with the higher ac main voltages running now, the output of the hp23 will run close to 900+ volts.. I'd never use one for the drake rigs mike bryce proso...@sssnet.com On Oct 2, 2010, at 11:20 AM, Garey Barrell wrote: Chris - The high voltage from the HP-23 is a little high in voltage and a quite low in current capability. That said, it would probably 'work' for low duty cycle use. CW, SSB with 'typical' transmission duration, (no AM style 'old buzzard',) and no AM. HP-23 - 700 VDC @ 250 mA TR-3 - 650 VDC @ 300 mA, 500 mA peak. So the '23 won't blow up, but it probably gets pretty warm. A fan on it would help a little. Much easier is an AC-3, -OR- and AC-4. Either will work just fine. The AC-4R is a good idea with either. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-B, C-Line TR-4/C Service Supplement CDs www.k4oah.com Christopher Bowne wrote: Greetings from Chris, AJ1G in Stonington, CT. This is my first post to the group. I picked up a TR-3 at Near-Fest Deerfield last fall. Has been sitting while I come up with a power supply for it. I picked up a Heath HP-23.as a potential supply for it this spring. From what I have read the HP-23 might be marginal with the Drakes due to the higher current draw of the Drake sweep tubes vs 6146s? I would prefer using an original or updated AC-3 if anyone has one available for sale. I would also be interested in a supply for mobile use, again would like to hear comments on use of the lete model Heath DC solid state mobile supply for the HW/SB transceivers with the TR-3. Also looking for info on using the TR-3 on AM' 73, Chris, AJ1G ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] odd ball s-meter on tr4
Boys and girls working on the fubar tr4 on my bench. got the receiver working, the transmitter is on line now too but I've got a problem with the receiver I've never seen before. I know what is wrong, but have not dived into it yet. I was just wondering if anyone it seems like the agc is screwed up. receiver is full gain, audio distorts on strong signals turning down the rf gain clears things up now... on strong signals, the s-meter deflects backwards! Yup! goes down instead of up. got to be something in the balance circuit that's upsetting things. yeah, changed out a few tubes and no joy anyone? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] tube question for the drake r4b
Working my way through the pile. I came upon a R4B that does not quite work right. before I dig into this receiver, i have a question according to the manual, V1, A 6BZ6 is the RF amplifier my radio has the expensive 6HS6 in place of the 6BZ6. Is this a okay substitute ? Or do I need to order a 6BZ6 someplace? Mike Bryce, WB8VGE the heathkit shop SunLight energy systems J e e p o|||o ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] bunches of drake questions
Good---happy new year everyone Well I'm starting my first new year's resolution of getting some of my old drake up and running. Just did a few quick tests and there's some issues with several transceivers. so, in no manor of importance: One TR-4 the band switch is tight. Grease or oil, or ?? Another TR-4 appears to be fubar. No receive, can't hear calibrator. Another TR-4, when the mic gain control is advanced, the receivers howls. One TR3, everyone is 20 over s-9. A simple adjustment? I don't have RG-62 to hook up between a TX4B and a R4B. Would a hunk of RG-58 do? All the rigs did work the last time I had them on, but they have sat now for several years. I'm reworking the entire drake station and will simply keep some juice flowing to them so they stay alive. I put in new blue plastic in the TR3, but its not really the blue that I think it should be. Do those overpriced blue LED make any difference? Have great Holiday everyone! Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Drake AC4 loss of bias voltage conceptual circuit finished
Boys and girls. as anyone with a drake TR series rig knows, loose the bias and you cook your finals. It's a simple as that. I've been working on the problem for a while and while I have yet to build the circuit, I have a conceptual design that seems to solve the problem. If lost of bias is observed, the AC4 simply shuts off. There's no blown fuses, popped circuit breakers nor arcs or sparks. There's no crowbar that's jammed into the works. There's that old saying about thinking outside the box, well at the end of the day, everything still has to go back into the box. Herein lies the problem. If you used one of my AC4R rebuild kits, there's plenty of room left on the other side of the transformer to a pcb to go. That being said, if you already have the AC4R installed, your odds of a bias failure is rather remote. So, the problem right now is trying to shoehorn the circuit inside the original AC4. I'll tighten the design, build a few to see how they work. Right now: Totally transparent to the user. You won't know the protection is there. Trying to get it inside the original AC4 case Should lost of bias be detected, power supply simply shuts off. Soft start on AC primary side Once tripped, power supply will NOT turn back on till problem is fixed Thinking about Along with lost of bias, low bias (adjustable set point) would trigger shut down A few LEDS so you can peek inside to see status of control circuit A sense wire could be run to the transceiver to monitor the plug got loose on the radio Boys and girls, how about some input? MIke, WB8VGE Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Drake AC4 loss of bias voltage conceptual circuit finished
Everyone! thanks for all the input... like I said in my first post, this is a conceptual design. right now, there's not enough room to put the circuit on the ac4r pcb, it just won't fit. I've been asked about a price, Well it is way to early for that. I don't have a clue, remember this is only a paper design. To make the circuit stand alone, that's not going to work. You need to monitor the bias voltage so there has to be someway to do that, and I don't like the idea of breaking the radio cable and inserting a black box. If I used two connectors, and another hunk of wire, then perhaps, but that's a real cluster and the cost/benefit is not there. I mean, really do you want a black box and extra cables between the rig? Sounds like a PITA to me. I don't favor running a wire from the rig back to a black box either. That's just tacky. And like I mentioned in my first post, if you indeed have done the upgrade, the chance of loosing the bias is very low, so this will be a project for those that still use the original version. However that being said, the bias protection circuit will require some wire cutting and working of the basic circuit. and if you're going to do that, you may as well put in the upgrade. I'll work some more on the design. I have a un-touched ac4 and will break out the ruler and take some measurements. the project continues... mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Just thinking out loud
Guys and gals... This is somewhat a pipe dream. Just thinking. Would a new state-of-the art power supply for the Trxxx series be doable? Talking about new transformers, improved design, fan cooling, maybe a automatic lost of bias shut down. perhaps more. Same size as the ac4? perhaps smaller? what would be a doable price? Not looking at specifics, but think the $250 to $300 range. Perhaps less, perhaps more. the determining factor will be a good long lasting transformer with improved rating. so.. input anyone? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Just thinking out loud
thanks guys for the input... like I was saying, this is just wishful thinking. as for the lost of bias voltage. that's bit rougher. A common problem is just having the plug come somewhat loose and you loose the bias. That would require some feedback or sense wire from the rig back to the power supply. Not a doable option lost of bias at the supply is easier to do. But will require a bit of work. I don't know if the amount of hassle is worth the price of admission. Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o A man with one clock knows what time it is. A man with two clocks is never sure. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fluke DMM Suggestion
Just wondering why not get another heathkit VTVM? even on ebay, they're not that expensive, but be sure you get the probe... I prefer the bench style as it is easier to read than the portable one on my eyes you just can't beat the VTVM for working on this old stuff. Most of the voltage readings were made with a VTVM at the factory mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Mar 22, 2009, at 9:39 AM, Richard Bell wrote: I am shopping for a Fluke DMM to replace my tried and true (but given away – don’t ask!) Heahtkit VTVM. Suggestions welcomed and please not some $500 lab grade instrument. Not looking to purchase one as much as I’m searching for a recommendation. 73, W5BXE ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [drakelist] T-4X: No Audio On SSB / AM CONCLUSION
I find that after I get a really nasty problem fixed, it's a case of the warm and fuzzies for a few days.. Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced
Re: [drakelist] Question
Resting up from last weekend! Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Jul 4, 2008, at 12:54 PM, Richard Bell wrote: I have the venerable B Line running an I’m hearing about nothing on 20 except for a couple of QSO’s around 14.051. Last weekend you couldn’t find a vacant spot on 20 (I know Filed Day). So where is everyone? W5BXE (unamplified mikes only)
Re: [drakelist] Question
I don't own a toyota never had... never willl Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Jul 4, 2008, at 2:15 PM, [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] writes: Mike, WB8VGE Um Hmmm, a Jeep grille on his emails and yet he drives a Toyotatch tch. Hi Mike, Carl Hibbard Gas prices getting you down? Search AOL Autos for fuel-efficient used cars.
Re: [drakelist] Soft key and fan controller for HF amplifiers
thanks Evan.. I was kinda of wondering how drake did the fan control... the L7 uses a blower or fan? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Dec 27, 2007, at 1:53 PM, [EMAIL PROTECTED] wrote: Mike, The L4B uses a constant speed blower. In contrast, the L7 uses a two speed fan that accomplishes this task by using a resistor in series with the fan. When the exhaust temperature exceeds the value on the thermostat, it shorts out the resistor, and the fan goes into high speed (i.e. normal, full 110 vac voltage to the fan). It will stay in this condition until the temperature drops accordingly. Good luck with the Dentron and thanks for sharing your experiences. Happy New Year and 73s, Evan -Original Message- From: Mike Bryce [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thu, 27 Dec 2007 1:31 pm Subject: [drakelist] Soft key and fan controller for HF amplifiers Boys...and girls... I have been working on a old dentron clipperton L amplifier... after much research and email chatting,I have it up and running. Designed a new power supply pcb for it and it seems to work like it should.. One of the things I was told was the clipperton L is a really solid 1Kw amp and a so so 2Kw amp one thing that get's it goat is that is over heats.. The unit I have has a 390 ohm resistor in series with the ac supply feeding the fan motor. Shorting out the resistors puts the fan in high gear. it also makes it a lot louder So... a simple fix here's what I did Added a softkey that is optically coupled to the radio. Instead of switching 25 volts at 250 ma, the radio only sees 12 volts at 10 ma. The amp is keyed by a high power MOSFET or you can select relay output keying (works with any amp that way) then I added a fan controller when you key the amp, nothing happens but keep the amp keyed a minute or two and the fan kicks up to high speed. after you unkey, the fan will run on high for a while and then drop back to low speed the amount of time will depend on how long you talk! the longer you key down, the longer the fan will run in high speed I don't know if the drake amps use any sort of resistor in the fan lead or not. but... you can always add an extra fan or add a fan to the back of the TRXX series rigs.. it was a fun project anyone interested let me know mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced = More new features than ever. Check out the new AOL Mail!
Re: [drakelist] ac4 write up
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- Gosh.. I thought about that, but here's no way to crowbar the bias circuit. in the old supplies, the damage is caused by a lack of bias. So, if there is a failure of the bias supply, i.e. it quits, how can you fix that? the only way I could come up with would have been a system that deprives the transformer of it's primary voltage, shutting down the supply. It would have to default in the off position too, as you would not want the supply to cycle on, find the missing bias, then shut down, the power up, find the missing bias supply, shut down and on and on. mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Dec 15, 2007, at 5:28 PM, Bill Horne wrote: Bill Horne [EMAIL PROTECTED] made an utterance to the drakelist gang -- Is there a provision in the kit for a crowbar circuit to safeguard the rig if the bias (or other) supply fails? Bill, W1AC -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] Somewhat OT: Experiment
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- You know... It's not ebay that sets the shipping charges.. I am sure you have seen the shipping of $28.50 to ship two 6JB6's across the country...via us mail to get a really good guess at the price, you need three things 1. how much does it weigh? 2. how far is it going? 3. size of the box ok.. a forth one.. 4. the shipping method and carrier I just shipped an old ten tec omni to tex via fedex home and it costs $23 and change it weighted 21# Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Dec 14, 2007, at 2:06 PM, Mark Pilant wrote: -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] Drake AC4R upgrade in Jan 2008 QST
Boys and girls.. After much hair pulling and emails between the arrl, last year I convinced them there is enough interest in the old drake to warrant publishing the article about fixing the old ac4 supplies. It took several rewrites to please the editors: they did not want it to read like a infomercial So now it's going to appear in the January 2008 issue of QST. So, that being said, if you like the article and want to see more stuff on older radios, (and not just from me) how about popping by the arrl.org web site and voting on the article? here's a link http://www.arrl.org/members-only/qstvote.html?pidx=0 I don't now for sure, but you may have to be a member of the arrl to get to this link. If you don't care for the article, that's cool too! But the bottom line is this. They print what people read! Mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced
Re: [drakelist] WTB: L-7 Amplifier
FYI... not sure if this is true or not but on the Ten Tec reflector, there's word that peter dahl is going out of business. They were making replacement transformers for the drake ac4 and the amplifier supplies mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Dec 7, 2007, at 10:32 AM, [EMAIL PROTECTED] wrote: Jim, If packed properly an L-7 can survive even the shippers mistreatment. Tubes should be removed and packed alone. I've rebuilt a number of supplies (L7 and L4B) and a non-working supply can be reworked, transformer failure being an expensive replacement. Good luck with your search. I enjoy the L7 and L4B. 73, Evan -Original Message-
Re: [drakelist] Deaf TR4
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- check your bias supply!! Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 12, 2007, at 12:41 PM, Ken Bessler wrote: Ken Bessler [EMAIL PROTECTED] made an utterance to the drakelist gang -- I turned on my TR4 this morning to find it deaf. I tried tuning up and found the plate meter would peg on tx even with the power turned all the way down. What's more, I have to give the old girl a thump to get her to unkey now. I know - TX/RX relay How do I remove it and test it? Where can I get a replacement? Is it the relay or am I guessing wrong? Ken 73's de Ken KG0WX - Kadiddlehopper #11808, Flying Pigs #-1055, Grid EM17ip _ Climb to the top of the charts! Play Star Shuffle: the word scramble challenge with star power. http://club.live.com/star_shuffle.aspx? icid=starshuffle_wlmailtextlink_oct -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] Keying Circuit
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- not to toot my own horn... but this is exactly what you need! http://www.theheathkitshop.com/universalkeyingi.html It's optically coupled and has a high voltage mosfet output. you can wire it as a cathode keyed or grid blocked keyed output it's on a pcb about the size of a large postage stamp. Mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] Motorola buying Yaesu!
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- would that make for a third USA company that now makes ham radio gear? 1. ten tec 2. elecraft 3 Motoyaesu? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 6, 2007, at 8:26 AM, john wrote: john [EMAIL PROTECTED] made an utterance to the drakelist gang -- Whoops...that can't be good John K5MO At 08:04 AM 11/6/2007, you wrote: VE3ES [EMAIL PROTECTED] made an utterance to the drakelist gang -- QST de W1AW Special Bulletin 7 ARLX007 From ARRL Headquarters Newington CT November 5, 2007 To all radio amateurs SB SPCL ARL ARLX007 ARLX007 Motorola buys Yaesu Motorola USA has announced its intention to launch a tender offer to acquire a controlling interest in Vertex Standard Co, Ltd. Vertex Standard is the parent company of Yaesu. Motorola will own 80 percent of Vertex Standard; Tokogiken, a privately held Japanese company, controlled by current president and CEO of Vertex Standard Jun Hasegawa, will retain 20 percent, forming a joint venture. The total purchase price for 80 percent of the outstanding shares on a fully diluted basis will be approximately US $108 million. /EX -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] IRC .82ohm 2W SPH resistor
the reason is not really clear.. but here goes if there is a fault in one or both of the tubes, or a short circuit someplace on the +2700 volt line this resistor acts like a fuse and pops open. the problem is that nasty 2700 volts! as the resistor opens up, the voltage will simply jump over the now carbonized resistor. in fact, it would be more accurate to call it a high voltage fuse instead of a resistor! aside from the voltage it has to carry, it must be able to conduct the necessary current as well. that's why is a special critter... and very hard to come by. perhaps I could purchase some from the one company via my heathkit shop since they won't sell to anyone not in the trade?? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 6, 2007, at 1:42 PM, Tom Bowman wrote: Hi, Where is the resistor being used in the circuit? Any idea why a 1 Ohm, 5% SPH resistor 66-SPH1R00JLF Mouser, would not work? 73, tom, WA3REY On Nov 6, 2007 12:49 PM, MT [EMAIL PROTECTED] wrote:
Re: [drakelist] IRC .82ohm 2W SPH resistor
well not yet! I have to find out who had them, how much and so on Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 6, 2007, at 2:23 PM, Donley wrote: Mike, If you bought a bunch of these resistors for resale, count me in for purchasing four or five spares from you. Dick KC9UB - Original Message - From: Mike Bryce To: [EMAIL PROTECTED] Sent: Tuesday, November 06, 2007 2:03 PM Subject: Re: [drakelist] IRC .82ohm 2W SPH resistor the reason is not really clear.. but here goes if there is a fault in one or both of the tubes, or a short circuit someplace on the +2700 volt line this resistor acts like a fuse and pops open. the problem is that nasty 2700 volts! as the resistor opens up, the voltage will simply jump over the now carbonized resistor. in fact, it would be more accurate to call it a high voltage fuse instead of a resistor! aside from the voltage it has to carry, it must be able to conduct the necessary current as well. that's why is a special critter... and very hard to come by. perhaps I could purchase some from the one company via my heathkit shop since they won't sell to anyone not in the trade?? Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 6, 2007, at 1:42 PM, Tom Bowman wrote: Hi, Where is the resistor being used in the circuit? Any idea why a 1 Ohm, 5% SPH resistor 66-SPH1R00JLF Mouser, would not work? 73, tom, WA3REY On Nov 6, 2007 12:49 PM, MT [EMAIL PROTECTED] wrote:
Re: [drakelist] WA9TGT Unique Radio Parts closing?
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- if there's enough interest... I could work up some version of the cap replacement pcbs... mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 2, 2007, at 9:44 PM, Jim Pruitt wrote: Jim Pruitt [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hello Jim. Another poster mentioned that Donnie no longer has the R4B filter cap. I got on there and was going to order that too right after I saw the message that he was quitting but quickly found out that he no longer has the R4B filter cap available. I was hoping that someone else would be able to take up where he leaves off. I hope Donnie will come on here and say hi before he quits. Thank you. Jim - Original Message - From: Jim F. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, November 02, 2007 5:33 PM Subject: Re: [drakelist] WA9TGT Unique Radio Parts closing? Jim F. [EMAIL PROTECTED] made an utterance to the drakelist gang -- Too Bad Jim, I am satisfied with his Drake 2-B receiver capacitors ordered from him and should order R-4B, TX-4B, and Power supply parts soon. Thanks jim --- Jim Pruitt [EMAIL PROTECTED] wrote: Jim Pruitt [EMAIL PROTECTED] made an utterance to the drakelist gang -- I was just on WA9TGT's Unique Radio Parts web site at http://www.wa9tgt.com/ and notice that he has a message saying that effective on December 1, 2007 he is closing and will no longer be supplying replacement Drake parts. Does anyone know if someone else will take up where Donnie Garrett is leaving off? Thank you. Jim Pruitt -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] AC4R summer special
Boys... my Jeeps need some new toys! so for a limited time I am running a summer special on the AC4R but with a catch... this special is the AC4R but without wires and printed documents. Regular price is $65 +$6 shipping the summer special on the NO wire NO doc is $50! +$6 shipping.. here's a link for more info: http://www.theheathkitshop.com/drakeac4rnwnd.html Mike... Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced
Re: [drakelist] AC4R summer special
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- doug... have not seen it pop up from paypal yet Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Jul 13, 2007, at 3:45 PM, Doug Smith wrote: Doug Smith [EMAIL PROTECTED] made an utterance to the drakelist gang -- Cool! Just ordered one. Thanks, Mike! 73, -Doug, W7KF On Fri, 2007-07-13 at 13:29 -0400, Mike Bryce wrote: http://www.theheathkitshop.com/drakeac4rnwnd.html -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] AC4R summer special Part TWO! AC4R PCB ONLY!
I' ve had several request about just the pcb My YJ wants a new front locker. So here's the deal.. for a limited time, you can get the AC4R PCB ONLY for $15 +$1 shipping That's $10 off the regular price of $26 ($20+$6 ship) you get the pcb only. NO PRINTED DOCUMENTATION! Shipping will be first class US Mail I won't invoice either and prefer payment via paypal so... $16 gets you the PCB for the AC4R but with no printed documents You can download the documents in pdf format or I can send them directly to you via email my paypal account is my email address mike Oh yea! if you want one of the special NO wire NO doc kits but with an EXTRA PCB, that's cool too. Just pop the extra $15 and I'll throw one in. Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced
[drakelist] need manuals
Hola...I'am in need for original manuals for the tr3 and tr4..YES, I know I can get them off line, but I can't read the schematics from the scans, so I need original ones.mike... Mike Bryce, WB8VGE the heathkit shopSunLight energy systemsJ e e po|||o
[drakelist] looking for a drake TR-4 main tuning knob
Well the subject line says it all...I am in need for a TR-4 main tuning knob.. Yup!, picked up another one and this one needs some cosmetic parts..mike.. Mike Bryce, WB8VGE the heathkit shopSunLight energy systemsJ e e po|||o
[drakelist] The TR-3 from Ebay..part FIVE
Well progress is continuing but have hit a real problem..on 15 and 10 metersthe VFO is way off frequency.. 21.00 on the dial is really 21.156 (not really sure never measured the difference) the PTO is on freqthe 9.0 mhz is on freqthe crystals are on freq (measured and sup in replacements)any ideas??mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o
[drakelist] The TR-3 part four... from ebay
Boys...A new set of 12JB6's and three new cathode resistors and there be fire in the wire!!!The transmitter now has about 175 watts output into a 50 ohm load (on 40 meters). The load control now seems to be "active" and loads up at between 3-5 on the scale..I did not try other bands yet.now... the only problem i still have is the S-meter being way to generous. And.. if I reduce the rf gain, the meter moves up, but pegs itselfswapped out several tubes in that receiver and s-meter circuit, that did change things..but perhaps the tubes that made things change were no goo to begin with. one set had the s-meter working, but when you turned the gain down, the meter did not move at all...Once i get the s-meter bug fixed, looks like a new front panel from tony and some other goodies... this guy is almost ready to go.mike Mike Bryce, WB8VGE the heathkit shopSunLight energy systemsJ e e po|||o
[drakelist] the continuation of the TR-3 from ebay..
Well...got the new final tubes, and while I was waiting on the them to show up, i dug deeper into the tr-3.found the three cathode resistors were split open... they must have been somewhat there as the tubes were drawing current,. WIth my finger tip, I was able to simple pop them apart waiting on new carbon film resistors to show up from mouser.in the meantime, i still have trouble with the s-meter.If I turn the rf gain down, the meter does not go up scale... swapping out some tubes, I can get the meter to swing upwards, but it's pegs...calibrator pushes the s-meter off scale on onto the peg as well..any thoughts???mike Mike Bryce, WB8VGE the heathkit shopSunLight energy systemsJ e e po|||o
[drakelist] That old TR-3 from ebay, part two
Guys..got the tx running, somewhat, $90 worth of new tubes and I have made a couple of contacts with this old radiobut the tx is not running at nearly close to full powerhere's what I know1. the three 12jb6 draw 250-300ma and produce about 25-40 watts, on most bands, 80 meters is much lower2. replaced most tubes with nos, but not the finals3. did a quick peak and tweak and all stages seem to peak correctly4. while drawing current,(250ma) the 12jb6's plates turn red, especially the one in the center.5. The load control must be fully UNmessed to get power into a 50 ohmload6. when the audio drive/tx drive control is fully clockwise, there is a squeal in the receive audionow before I drop for a trio of final tubes, is there any place I should be looking??and... I have way too much s-meter. THe receiver receives just fine, I can easily hear 1uV signal, but a 50 uV signal is peggedanyway... any thoughts??looking for a good tube tester... what should I be looking for??mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o
[drakelist] The tr-3 from hell (ebay!)
boys and girls...It seemed a good buy, so last week I got a rather nice looking TR-3.. but she don't work...here's the poop..receives like mad on all bands... but there's no tx.. and I mean no tx... no clicks buzzes or whistles...Here's what I know1. in the "CW-X" position the transmitter does not key up (yup! don't have a plug in the key jack)with a key plugged in to the cw jack, still nothingbut there's more!if you "detune" the front end, the t/r relay snaps in and you get zip RF output. Infact, you can't hear the low level rf in another receiver, so there's really no rf being produced2. On receive, if you turn up the "xmit gain" all the way, the receiver starts to hear a "whistle"3. I don't have a tube tester worth a hoot, and very little spares to try, so will be ordering in some tubes. Besides all of them, what would be a good start to replace?4. I kinda of already suspect the "vox/antivox" circuit 5. If you go to "cw-x" and turn down the volume, you get t/r function, but no rfMike... Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o
[drakelist] Just trolling for now.. looking for a r4c
HolaKinda of looking for a drake R4c... does not need to be collector perfect or have any extra crystals...But no real junk eitherand don't really want to pay ebay prices eitherAny one have a spare they want to part with?Mike...Mike Bryce, WB8VGE the heathkit shopSunLight energy systemsJ e e po|||o
[drakelist] Some Drake TR4cw questions..
Hola... well one can not live by transistors alone. so I dug out one of several old TR4's I had. this one was in fact a TR4CW... now... I've never used any of my Drake radios for too much, other than to check into a net here or there so there's a lack of operating time on my side. so here are my questions 1. Using headphones, 8Ω, the volume is way too loud. at just turned on, it's blasts my ears. Is there a fix to this internal to the radio? Or must I insert resistance into the head phone line. ( I don't use the same head phones all the time) 2. Sidetone volume is too low... anyway of increasing the level? 3. When going to the cw filter, I loose RF output power. Yea, could be a misaglined crystal filter, but if I retweak the loading the plate controls, power comes back up to where it was in the wide position. 4. beside ebay at $15 a pop, where can one get the 3/16 inch right angle plugs for the microphone? thanks... mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] L7 power supply upgrade boards--status
Boys and girls.. It's Christmas eve day and the year is just about kaput. I plan on doing a few more updates to the artwork on the L4/L7 power supply upgrade pcb this week. so, here's the plan 1. if you have ordered a pcb with me, you credit card WILL Be charged in the coming week. The total will be $25+$4 shipping. 2. Provided the pcb house is not shut down for the christmas holiday and new years, the pcbs will be here within a three week period. 3. I will send an invoice out before the pcbs are shipped. that way, when you get your card statement, you won't have to figure out what your charged from sunlight energy systems 4. right now, if there is enough interest in a complete kit consisting of pcb, caps, resistors, diodes and what nots, let me know. the complete kit will be $100 +$8 shipping if nothing else, have great Christmas... mike, wb8vge Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] drake L7 power supply PCB update
Mike Bryce [EMAIL PROTECTED] made an utterance to the drakelist gang -- It looks like there maybe enough interest in this project. so having said that, here's what I need 1. A run of 50 pcb will be made 2. I need at least 25 orders to meet the minimum setup fee to get the best possible price on such a small board run I need to have at least 25 people commit with their credit cards. I will hold the card number until I have meet the 25 mim requirement, then place the order. Your cards will be charged when the order is placed. Since I am tail ending a run, it will take up to 3 weeks before the pcb arrive. That's the longest time, usually they are much faster than that. So, that's the deal.. The boards are 5.375 by 6.00 inches on double sided pcb with plated though holes. The top is silk screen and both top and bottom have a solder mask applied. I plan on at least .093 thick maybe even .125 if I can get a reasonable price. Full instructions will be included the price of the PCB will be $25 each. And for the first 25 guys that order, I'll throw in the shipping. After #26, shipping will be $4 Provided i can get 25 orders, project will start rolling. if not, then it won't Mike... Mike Bryce, WB8VGE the heathkit shop SunLight energy systems -- Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] L4/L7 power supply upgrade pcb
Well pete got around to doing the instruction for the power supply upgrade. if anyone wants to get a copy, let me know and I will email it to you be advised, it is a 2meg file also.. have two prototype pcb for this project. Both are completed boards, just need to be installed. So far there seems to be very little interest in this project. Certainly not enough to warrant a run of pcbs. but that being said, if you want a copy of the installation instructions, pop me an email Mike Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] Drake L7 Replacement power supply prototype pcb assemblies
Cleaning the shack, I have two and only two prototype L7 power supply upgrade boards. These are fully assembled and electrically tested, but NOT TESTED in the amplifier This board replaces the two diode and filter boards in the L7 supply. again, these are prototypes. Only three were made. Peter Shilton VE3AX is working on the instructions for installation in the supply. therefore I can't supply any paper work to aid installation. Let me make this as clear as possible. the voltages inside the L7 are deadly. There are no second chances. You should not attempt this unless you feel comfortable working with and have the proper test gear to do this installation. That being said.. the two prototypes are for sale. They are $100 and that includes shipping. They are prototypes. Remember.. If anyone want one, pop me a private email. I can supply photos of what they look like. again prototypes and only two here. have a great labor day weekend... Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] Drake Amplifier power supply upgrade---update
boys and girls.. I have aquired some low profile high voltage capacitors. With some fancy pcb layout. I believe I can get BOTH of the old drake L4 supply boards on ONE pcb. this would drop the price down considerably. Right now, about, somewhat, close to, around, $100 for the kit...give or take a few bucks that being said, there's not been much interest in this project.. Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] L7 power supply upgrade
Boys and girls... Is there enough interest to remake the two pcbs hiding in the high voltage power supply used in the drake L4 amplifiers. just doing a rough draft of what is needed, new high voltage caps, new higher current higher voltage diodes and the ability to us radial caps instead of axial ones rough price will be about $150 for the complete two board set with all parts Is there interest? if so, perhaps we will move forward with the project. if not, then say so.. and I'll take it off the stove 73 mike, wb8vge Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] drake AC-4R replacement pcb kits
mike bryce [EMAIL PROTECTED] made an utterence to the drakelist gang -- Boys and girls... Snow's gone (for now) and it's almost spring like out. Washed and wax my jeep, can't wait to take the top off again, so feeling good... that being said.. anyone wishing to get a drake AC-4R replacement pcb kit: until Jan 7 2005 Kits are $10 off of current price of $65 more into? Sure. Point your browser to: http://www.theheathkitshop.com/drakeac4rreplace.html Remember, this is only good till Jan 7, 2005 Have a great new year!! Mike Bryce WB8VGE SunLight Energy Systems http://www.seslogic.com http://www.theheathkitshop.com Electricity at the speed of light -- On Behalf of mike bryce [EMAIL PROTECTED] Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
[drakelist] AC-4 replacement pcb ready to go
MIKE BRYCE [EMAIL PROTECTED] made an utterence to the drakelist gang -- the pcbs for the new drake ac-4 power supply are now in stock. a very limited number of first run kits will be shipping within a week. (waiting on first run of parts) here's some more information on the project: That old Drake AC4 getting a little rough around the edges? Can¹t locate those high voltage capacitors without taking out a bank loan? Well then perhaps the solution is to install the new AC4R upgrade pc board. No, it¹s not from Drake, and no Drake did not use a pc board in their original AC4 design. Here¹s what we¹ve done for the AC4R upgrade: Increase all the silicon diode ratings to 1.5 amp @ 1000 volts Increase high voltage rating of the electrolytic capacitors Increase wattage of the bleeder resistors Mounted the bleeder resistors, bias resistors and R3 on to the pc board (original bias pot still used) All resistors are flameproof 1 watt Resistor R3 is now rated at 10 watts instead of the original 5 watts With the exception of the bias set trimmer, all parts mount on a single PC board No holes to drill. Easy to assemble with complete assembly instructions PC board is double sided with plated through holes. Solder mask on both sides and component silk screen on both sides. Prices: The pc board only is $15 +$4 shipping A complete kit of parts, including the pc board and all board mounted components is $65+ $4 shipping While the AC4R is an easy to build project, there are a lot of wires that must be cut, moved and reconnected to the new pc board. The project is not for the faint of heart. So I will be offering these two options. Options: 1.For those that don¹t have the time, or simply can¹t see anymore to assemble the pc board, we will stuff the board for an additional $10. 2.And for those that like messing with high voltage or hot soldering irons, we will assemble, install and test your AC4 for an additional $45 above the kit price. Customer to pay for shipping both ways for the AC4 supply. you can call me toll free to order your pcb or kit at 1 888 476 5279 I am in the office from 10am to 2 pm. Mike Bryce, WB8VGE SunLight Energy Systems http://www.seslogic.com http://www.theheathkitshop.com -- On Behalf of MIKE BRYCE [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] Drake synthesizer update.
MIKE BRYCE [EMAIL PROTECTED] made an utterence to the drakelist gang -- whoa!! i knwo Fred quite well from far circuits... His quality at times can be a bit ruff but not as bad as what you have in your hands. send them back quality like that is unacceptable at any level.. he will replace them without charge Mike Bryce, WB8VGE SunLight Energy Systems http://www.seslogic.com http://www.theheathkitshop.com -- On Behalf of MIKE BRYCE [EMAIL PROTECTED] Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
