[Elecraft] No ears , k2#5315
Hi all, I'm building K2 #5315, everything went well upto page 64 where I should do the IF amplifier alignment. It appears that there is no audio at all ( beter say very very weak ). I cheked the earphones by hitting the SPOT , which was ok. But I can not hear the 7000 internal signal at all. When I tune my VFO there is definitely a signal and the S-meter runs very well, especially above 7100 where all of those commercial staions are. Checked the agc . I got 3.78 V on U2 pin 5 , that is fully CCW R1. AF gain pot is approx 5 k , Rp6 (7-8 ) is 5K , R1 is 50K checked 8R , D6 is 7.73 V and D7 is 0 V All looks ok , anyone any suggestion ? Cheers Roger OE6MSF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] No ears , k2#5315
Roger, If the S-meter is lively, most likely the stages through the IF amplifier are probably good. Be certain you see an increase in the S-meter when the Pre-Amp is turned on and a decrease when the Attenuator is turned on - expect about a 1 or 2 LED bar difference in both cases. Your voltage at the AGC Threshold of 3.78 volts is not an indicator of a problem at this point. Did you pre-set the BFO frequencies to the values shown on page 89? If not, that alone may be your problem. If you have set the BFOs and still have inadequate audio, the problem can be in the 2nd Xtal Filter, or the Product Detector, or the Mute or AF Amp stages. Check the DC voltages for these stages and compare to the DC voltage chart in Appendix F as a first step - you should measure DC Voltages within 10% of the value shown in the chart. If the DC Voltages are OK, check all the signal paths from the 2nd Xtal Filter through the AF Amp for good solder connections - the signal paths include all 3 boards and their connectors because the AF Gain control is located on the Front Panel. Use the schematic as a guide in identifying the signal paths. The sidetone is injected into the audio amp IC at a separate pin from the audio, so that indicates only that the Audio IC is capable of producing some sound. 73, Don W3FPR -Original Message- I'm building K2 #5315, everything went well upto page 64 where I should do the IF amplifier alignment. It appears that there is no audio at all ( beter say very very weak ). I cheked the earphones by hitting the SPOT , which was ok. But I can not hear the 7000 internal signal at all. When I tune my VFO there is definitely a signal and the S-meter runs very well, especially above 7100 where all of those commercial staions are. Checked the agc . I got 3.78 V on U2 pin 5 , that is fully CCW R1. AF gain pot is approx 5 k , Rp6 (7-8 ) is 5K , R1 is 50K checked 8R , D6 is 7.73 V and D7 is 0 V All looks ok , anyone any suggestion ? Cheers Roger OE6MSF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Voltage at output pin of MAR-1
Bill, Get a spare MAR-1 as a 'prevention measure' - I have not zapped mine since the time I decided to keep a spare on hand G 73, Don W3FPR -Original Message- Thanks Ken, About half the supply volts, that's what I guessed. Looks like the Dunce's hat for me --- I left the Palm paddles connected while I did a Spectrogram run on the filters --- think I must have given them a nudge and transmitted into the N-Gen before I powered off! We live and learn. Bill Scovell/VK4SQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] No ears , k2#5315
Bad connection on X6 was the problem , Thanks all who helped tackle me this problem, now I can listen for some 40 meter actrivity !!! Roger OE6MSF From: Don Wilhelm [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: r opdebeke [EMAIL PROTECTED],elecraft@mailman.qth.net Subject: RE: [Elecraft] No ears , k2#5315 Date: Tue, 14 Feb 2006 08:01:33 -0500 Roger, If the S-meter is lively, most likely the stages through the IF amplifier are probably good. Be certain you see an increase in the S-meter when the Pre-Amp is turned on and a decrease when the Attenuator is turned on - expect about a 1 or 2 LED bar difference in both cases. Your voltage at the AGC Threshold of 3.78 volts is not an indicator of a problem at this point. Did you pre-set the BFO frequencies to the values shown on page 89? If not, that alone may be your problem. If you have set the BFOs and still have inadequate audio, the problem can be in the 2nd Xtal Filter, or the Product Detector, or the Mute or AF Amp stages. Check the DC voltages for these stages and compare to the DC voltage chart in Appendix F as a first step - you should measure DC Voltages within 10% of the value shown in the chart. If the DC Voltages are OK, check all the signal paths from the 2nd Xtal Filter through the AF Amp for good solder connections - the signal paths include all 3 boards and their connectors because the AF Gain control is located on the Front Panel. Use the schematic as a guide in identifying the signal paths. The sidetone is injected into the audio amp IC at a separate pin from the audio, so that indicates only that the Audio IC is capable of producing some sound. 73, Don W3FPR -Original Message- I'm building K2 #5315, everything went well upto page 64 where I should do the IF amplifier alignment. It appears that there is no audio at all ( beter say very very weak ). I cheked the earphones by hitting the SPOT , which was ok. But I can not hear the 7000 internal signal at all. When I tune my VFO there is definitely a signal and the S-meter runs very well, especially above 7100 where all of those commercial staions are. Checked the agc . I got 3.78 V on U2 pin 5 , that is fully CCW R1. AF gain pot is approx 5 k , Rp6 (7-8 ) is 5K , R1 is 50K checked 8R , D6 is 7.73 V and D7 is 0 V All looks ok , anyone any suggestion ? Cheers Roger OE6MSF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Voltage at output pin of MAR-1
Well, Don, you've likely jinxed yourself now. hope not, dave belsley, w1euy On Feb 14, 2006, at 8:11 AM, Don Wilhelm wrote: Bill, Get a spare MAR-1 as a 'prevention measure' - I have not zapped mine since the time I decided to keep a spare on hand G 73, Don W3FPR -Original Message- Thanks Ken, About half the supply volts, that's what I guessed. Looks like the Dunce's hat for me --- I left the Palm paddles connected while I did a Spectrogram run on the filters --- think I must have given them a nudge and transmitted into the N-Gen before I powered off! We live and learn. Bill Scovell/VK4SQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] What's with the new amplifier?
I'm almost finshed building my basic K2 kit and I'm looking at the purchase of the power amplifier kit. I keep hearing rumors of a new amplifier/tuner kit. I would be disappointed if just after purchasing the amp, elecraft came out with a better amplifier. Does anyone know what the scoop really is? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Signal tracing puzzler
I thought my K2 receiver was dead, so I hooked up a signal generator to the antenna jack. I setup the signal generator for about 7.1mhz sine wave and 140mv p-p into a 50 ohm terminator. When I connect the signal generator to the connector, the signal goes away, just like it was grounded. I pulled terminal 3 of T4 in the transmitter section and the signal comes back. This transformer only has a couple of turns, so it seems reasonable that it would attenuate the signal. After scratching my head for a while, I reconnected the transformer winding and connected to an antenna. It seems as if the receiver works just fine. I guess you can't argue with success, but I don't understand what is going on here. Why would the signal from the signal generator get grounded at the antenna jack? Thanks in advance Rich - KE1EV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
The KPA is integrated, the new amps are outboard. My understanding is that you'll need the KPA in any case to drive the new amps to full output. It's not really a question of better, they serve different purposes .. de john/w1rt On 2/14/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I'm almost finshed building my basic K2 kit and I'm looking at the purchase of the power amplifier kit. I keep hearing rumors of a new amplifier/tuner kit. I would be disappointed if just after purchasing the amp, elecraft came out with a better amplifier. Does anyone know what the scoop really is? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] MH-2 and Boomset Problem
Hi Don, This is much more complex than I originally thought! The BM-10 was purchased with adapters for an Omni 6 (4-pin) and a Yaesu 817 (RG-xx). The pads are black and it has the HC-5 element. The cord coming from the boomset has a connector that takes either above adapter, or, it can go directly into the K2 mic connector. The headset only had BM-10 shown as its model number. All this discussion may be why I only do about 20 SSB Q's/yr on HF! Now in the VHF rover I do 1000+/yr, but we the Yaesu hand mics that came with the rigs. Thanks, Mark K2QO Don Wilhelm wrote: Mark, Still not enough info - BM-10 is a Heil number, not an Elecraft number, and there are 3 models of the BM-10 - one with the HC-4 element, one with the HC-5 element and one with an electret element for Icom. Are the pads blue, red, or black? The above info is only for starters - these mics are sold by Heil for specific rigs and vary in the wiring at the plug, so you must also know which transceiver it was originally intended for. If I had to guess, I would say that your BM-10 is wired for the Yaesu which uses pin 6 for PTT, and when you connect it to the K2 and press the footswitch, you are shorting the K2 +5 volts pin (6) to ground. Heil refers to the Yaesu BM-10 as BM-10-Y, but I don't know whether that is simply ordering info or if that number is imprinted on the mic. 73, Don W3FPR -Original Message- From: Mark Adams [mailto:[EMAIL PROTECTED] Sent: Monday, February 13, 2006 10:41 PM To: [EMAIL PROTECTED] Subject: RE: [Elecraft] MH-2 and Boomset Problem Don, the Elecraft mike is the HM2 hand mike and the Heil boom set is the discontinued BM-10. It's a smaller version of the full size Pro Set. Is this enough to answer teh question? 73, Mark K2QO Quoting Don Wilhelm [EMAIL PROTECTED]: Mark, Just saying 'Heil boom set' is not sufficient information to tell me which mic you actually have. Is it the Elecraft MD2? Is it the Heil ProSet (if so, which one of these is it)? If the mic was made for use with an Elecraft or an Icom, then it should have an electret element in it, but if it has the Heil HC4 or HC5 elements, it is a dynamic mic element and does not need voltage applied to it. Let us know what you really have and perhaps we can help. 73, Don W3FPR -Original Message- This should be and easy one. I have a K2, SN543, loaded with all updates and firmware but no 100W. I've used the HM-2 with for a couple of years for a couple dozen SSB contacts. When I plug my Heil boom set in and key it with the foot pedal, the rig shuts off. Does the resistor on the back of the mic connector need to be removed to use the boom set? I actually just tried this yesterday. Never noticed that the Heil came with a compatible connector, no adapter needed. Mark S. Adams, P.E. Environment, Health Safety University at Buffalo 220 Winspear Avenue Buffalo, NY 14215-1034 Tel: 716.829.3707 ext 25 Cell: 716.863.7229 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.6/258 - Release Date: 2/13/2006 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
[EMAIL PROTECTED] wrote: I'm almost finshed building my basic K2 kit and I'm looking at the purchase of the power amplifier kit. I keep hearing rumors of a new amplifier/tuner kit. I would be disappointed if just after purchasing the amp, elecraft came out with a better amplifier. Does anyone know what the scoop really is? I know a few facts about it which I will relate, since Elecraft isn't (aren't) talking. None of this is official, since I don't work for Elecraft and things may have changed since I saw the prototype last April. If so, they'll correct me! One thing I do *not* know is when it will be ready, although I'm convinced that it will be produced. The initial version of the amplifier, the KPA800 will be rated at 800 watts SSB and capable of 1000 watts CW (the SSB limitation ia due to IMD). At some point in the future there will be a KPA1500 capable of full legal power. The KPA800 has a built-in power supply; the KPA1500 will have an external box. The prototype used 60-volt FET devices made by Advanced Power Technology. The KPA800 prototype weighed about 36 lbs (16.3 kg). The amplifiers are designed to be driven by a 100-watt class transceiver such as (but not only) the K2/100. The amplifiers can accept band data from a K2, or from Kenwood, Icom, or Yaesu radios, as well as detecting frequency directly from the RF input. There is a built-in antenna tuner. The prototype covered 160-6 meters; at the time, Elecraft had not decided whether the final version would cover 6 -- if they can do it and meet specs then it will. The price that was discussed at the time was somewhere between $2500-$3000 for the KPA800. The KPA1500 of course will be somewhat more. Although this seems like a lot, keep in mind that it's a fully automatic amplifier, including power supply and automatic antenna tuner. Consider that the competition for the KPA1500 is the likes of the Alpha 87A ($7K and no built-in antenna tuner). -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Signal tracing puzzler
Rich, If the output of your signal generator is DC coupled, that effect could be expected. The K2 input is grounded for DC but not for AC at the frequency band that it is tuned to. Then again, you may have a shorted coupling capacitor on the output of your signal generator. 73, Don W3FPR -Original Message- I thought my K2 receiver was dead, so I hooked up a signal generator to the antenna jack. I setup the signal generator for about 7.1mhz sine wave and 140mv p-p into a 50 ohm terminator. When I connect the signal generator to the connector, the signal goes away, just like it was grounded. I pulled terminal 3 of T4 in the transmitter section and the signal comes back. This transformer only has a couple of turns, so it seems reasonable that it would attenuate the signal. After scratching my head for a while, I reconnected the transformer winding and connected to an antenna. It seems as if the receiver works just fine. I guess you can't argue with success, but I don't understand what is going on here. Why would the signal from the signal generator get grounded at the antenna jack? Thanks in advance Rich - KE1EV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] MH-2 and Boomset Problem
Mark, The fact that the mic plug CAN plug directly into the K2 does not mean that it is wired correctly for the K2 - this is a problem with mics and the various mic pinout configuration that different manufacturers use. The Elecraft configuration is very much like the Kenwood, but it still differs by one pin (pin 5 vs. pin 6 for +5 volts). Be aware that the Heil HC4 and HC5 elements have much lower output levels than the electret type mics (those made for Icom and Elecraft are two examples of Electret types). My suggestion to solve your problem is to build an external pre-amp to bring the HC-5 element up to a decent output (about 6 dB gain is what I would suggest) and in the box where the pre-amp resides, you could make the input connector wiring to match your Yaesu wired microphone, and wire the output plug to match the Elecraft pin configuration. That way, you could attach the MH2 directly to the K2, but attach the BM-10 mic with the Yaesu adapter to the preamp and the preamp box connects directly to the K2. I can send you a schematic of the preamp I use (which allows the 5.6k resistor to remain wired in the K2) should you need one - send me a direct email, the reflector rejects attachments. Yes, it is more complicated than simply plugging in the mic, but your variety of transceivers that you intend to use the mic with creates complexity itself - the solution I suggested, once constructed removes the complexity. 73, Don W3FPR -Original Message- Hi Don, This is much more complex than I originally thought! The BM-10 was purchased with adapters for an Omni 6 (4-pin) and a Yaesu 817 (RG-xx). The pads are black and it has the HC-5 element. The cord coming from the boomset has a connector that takes either above adapter, or, it can go directly into the K2 mic connector. The headset only had BM-10 shown as its model number. All this discussion may be why I only do about 20 SSB Q's/yr on HF! Now in the VHF rover I do 1000+/yr, but we the Yaesu hand mics that came with the rigs. Thanks, Mark K2QO Don Wilhelm wrote: Mark, Still not enough info - BM-10 is a Heil number, not an Elecraft number, and there are 3 models of the BM-10 - one with the HC-4 element, one with the HC-5 element and one with an electret element for Icom. Are the pads blue, red, or black? The above info is only for starters - these mics are sold by Heil for specific rigs and vary in the wiring at the plug, so you must also know which transceiver it was originally intended for. If I had to guess, I would say that your BM-10 is wired for the Yaesu which uses pin 6 for PTT, and when you connect it to the K2 and press the footswitch, you are shorting the K2 +5 volts pin (6) to ground. Heil refers to the Yaesu BM-10 as BM-10-Y, but I don't know whether that is simply ordering info or if that number is imprinted on the mic. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] How sweet it is!
Having just gotten K2 5345 completed and on the air, and mighty proud of that fact, I'd like to add my endorsement of Spectrogram to give the ultimate tweak to a fine piece of ham gear. Besides, Spectrogram is fun! Yes, this old duffer found it confusing at first and I had to make mistakes with it in the process of learning, but nothing is harmed by those errors. The software isn't complicated to use, but if like me you don't at first fully understand the circuitry you're working with, then along the way you're going to gain the added benefit of discovering the beauty of the K2's adjustable filter design. Although painstaking effort has been taken to clarify the instructions, you may very well have questions and become a tad lost at some stage. Have no fear, because lots of knowledgeable help is available right here on the forum. All you have to do is ask. I did, then received a friendly, encouraging answer within the hour from Tom, N0SS, and the way was cleared to a much better understanding of the K2 filters. Is Spectrogram worth the effort? You better believe it! I had the filters set as indicated in the K2 manual, and thought they were working fine. Little did I realize how much better they can perform. It's almost magical now to tune a station to my Spot tone frequency, then drop down through the filter stages in CW Normal or CW Reverse and have that pitch stay perfectly centered. No more having to slightly retune to keep the station where needed. It's right there! If you don't have that perfection in your filter alignment, just think how sweet it would be to not lose a single character when forced to narrow the filtering. All it's going to cost you to gain this pleasure is a little time, and perhaps the purchase or making of the simple audio jumper cable. The control you acquire over your K2's performance and added knowledge of how it works will leave you with a warm glow of accomplishment. Don't hesitate, jump right in! You've nothing to lose, a great deal to gain, and you get to feel like a real lab technician to boot. It doesn't get much better than that! Dale, K6PJV Sacramento ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] How sweet it is!
Dale Kretzer Don't hesitate, jump right in! You've nothing to lose, a great deal to gain, and you get to feel like a real lab technician to boot. It doesn't get much better than that! Dale, K6PJV Ah, one more assimilation. The Eleborg: Resistance is futile de tom K8TB K2 # 3206 es 5050 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
At 08:05 AM 2/14/2006, Vic K2VCO wrote: The price that was discussed at the time was somewhere between $2500-$3000 for the KPA800. The KPA1500 of course will be somewhat more. Although this seems like a lot, keep in mind that it's a fully automatic amplifier, including power supply and automatic antenna tuner. Consider that the competition for the KPA1500 is the likes of the Alpha 87A ($7K and no built-in antenna tuner). An additional point is that the KPA800/1500 are SO2R-capable right out of the box - It has two sets of inputs (RF, PTT, band), and (at least) two RF outputs, so you can run an SO2R station with only one amp. At least, the prototype I saw had this capability. - jeff wk6i ps: I think the Alpha does have an antenna tuner...? -- Jeff Stai [EMAIL PROTECTED] Twisted Oak Winery http://www.twistedoak.com/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
On 2/14/06 11:46 AM, Jeff Stai [EMAIL PROTECTED] wrote: ps: I think the Alpha does have an antenna tuner...? Hi Jeff, The 87A doesn't have a built-in antenna tuner. The output network can comfortably match about a 2.5:1 VSWR range as I recall from the one I had back in the early 1990s, but I had to use an external tuner to use the Alpha with my wire antennas. Gus Hansen, KB0YH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
What's SO2R? Don't think we have that here. Nigel A. Gunn. 59 Beadlemead, Milton Keynes, MK6 4HF, England. Tel +44 (0)1908 604004 mobile +44 (0)7765 471661 e-mail [EMAIL PROTECTED] www http://www.ngunn.net Amateur radio stations G8IFF, KC8NHF Member of AMSAT-UK #182, ARRL, GQRP Club, QRPARCI, SOC #548, RAYNET Flying Pig #385, Dayton ARA #2128, AMSAT-NA LM-1691, MKARS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Amplifier status
Don is a bit off the mark on this one. :-) We're probably closer to May-June, based on current parts deliveries and production start up work. I have been receiving a flood of requests for info on this project. To be honest, I have have not had the time to answer each one individually. (Were busy here at Elecraft HQ ;-) Instead we have been focusing on getting everything ready for Field Test and production. Both the 800W -and- 1500W versions are up and running. (Listen for me on he air..) We are in the final process of getting all of the certification paperwork into the FCC. (This just covers the usual anti-CB rules: 15 dB or less gain, reach rated power out with at least 50W of drive and no 12-10M out of the box.) I can't post any more details at this time, but I will in the next months as I have more time and concrete details, pricing info etc. 73, Eric WA6HHQ Don Wilhelm wrote: Rich, I have heard on this reflector recently that the amp was about to go to the Field Testers, so unless some major problem crops up, I would expect it to be announced as available in 4 to 6 weeks. WARNING - I have no 'inside track' on this and I am not one of the Field Testers for the amp (not enough in my ham budget G), I am making assumptions based on past experiences. 73, Don W3FPR -Original Message- Is there any news on when the new amplifer/tuner kit is coming out? I tried to ask Wayne and Eric but do not get responses from either. Tried via the list and direct :( If not, does anyone know of a decent 10-160 SS amp kit a guy can build or good plans to homebrew one? Thanks and 73, Rich kd0zv ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Amplifier status
Hell, it won't even turn on out of the box. IT'S A KIT! I bet even the FCC can figure that one outg. Dan / WG4S / K2 #2456 snip... and no 12-10M out of the box. /snip ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
Jeff Stai wrote: ps: I think the Alpha does have an antenna tuner...? No, it has an automatically tuned pi-l network in the output which can handle load SWR up to 1.5:1 without any special tricks, or which can be manually programmed for antennas with SWR up to 2:1. But it's basically the same type of output network found in most tube amplifiers, which has a certain amount of flexibility. I expect that Elecraft's tuner will handle a wider range of impedances (although I can't say for sure). -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Amplifier status
What happened to the much bally-hooed change in rules that were supposed to end all of this FCC hoo-hah over amplifiers? I thought the NRPM came out forever ago and that it was going to be acted upon soon. Bob N4HY Eric Swartz - WA6HHQ, Elecraft wrote: Don is a bit off the mark on this one. :-) We're probably closer to May-June, based on current parts deliveries and production start up work. I have been receiving a flood of requests for info on this project. To be honest, I have have not had the time to answer each one individually. (Were busy here at Elecraft HQ ;-) Instead we have been focusing on getting everything ready for Field Test and production. Both the 800W -and- 1500W versions are up and running. (Listen for me on he air..) We are in the final process of getting all of the certification paperwork into the FCC. (This just covers the usual anti-CB rules: 15 dB or less gain, reach rated power out with at least 50W of drive and no 12-10M out of the box.) I can't post any more details at this time, but I will in the next months as I have more time and concrete details, pricing info etc. 73, Eric WA6HHQ -- AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] What's with the new amplifier?
Yes, the 87A has an auto tuner. I forget the two buttons to push that has one of the LED's continuously flash to indicate it is in auto-tune mode. When in this mode it continuously tunes for low swr. This is nice when changing multiple antennas on the same band. I will remember what buttons to push when I get out of the snowy northeast next week and operate the 87A from WP2Z. By the way I plan on taking down my K2. Was given a real nice metal case with foam liner. It should work great for carrying on the K2. N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Augie (Gus) Hansen Sent: Tuesday, February 14, 2006 2:03 PM To: Jeff Stai; Elecraft Reflector Subject:Re: [Elecraft] What's with the new amplifier? On 2/14/06 11:46 AM, Jeff Stai [EMAIL PROTECTED] wrote: ps: I think the Alpha does have an antenna tuner...? Hi Jeff, The 87A doesn't have a built-in antenna tuner. The output network can comfortably match about a 2.5:1 VSWR range as I recall from the one I had back in the early 1990s, but I had to use an external tuner to use the Alpha with my wire antennas. Gus Hansen, KB0YH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Amplifier status
Will the new Elecraft amp be same color as the exciter kit line or maybe business black like the Alpha amp etc and a lot of computers. thanks Al W4abw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What's with the new amplifier?
N2TK, Tony wrote: Yes, the 87A has an auto tuner. From page 7 of the manual: On any frequency where your antenna VSWR exceeds 1.5:1, it’s important to manually program the ALPHA 87A for a proper match. See manual sections 7.2-7.4. Efficiency, linearity, and output often can be improved even when VSWR is less than 1.5:1. The 87A does not contain an antenna tuner. The SWR will need to be tuned via the antenna or an external tuner connected to the output of the Alpha 87A. http://www.alpharadioproducts.com/87A_manu.pdf Yes, there is a mode that you can use to adjust the 87A for an antenna that isn't perfectly matched, just like you can with any manually tuned tube amplifier. No it does *not* have a built-in tuner! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] elecraft case
Tony, N2TK mentioned he had found a case for his elecraft k2. I would like to add a review Ive seen on an I-tunes podcast for a Pelican Indestructible laptop case. It is a free download and pretty darn amusing. If you have Itunes (free) and look under Let Bill Buy It. Make your own decision, but these cases are TOUGH. George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 contest
Hello all, Thanks everybody for the information through the reflector and directly. I have to admit that I didn't notice the openings in the top cover at the end of the heatsink! I will check power at all bands again to make sure that the 100 W comes out on all of them. I'm pretty sure it did when I aligned the KPA100. I also tightened the screws of the final and driver transistors after the contest (first 14 hours of operation), and it was necessary! Conclusion up to now: I'm a very happy user so far! Thanks and 73's, Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Amplifier status
Dan, That is true only if you purchase the kit - the plan as I recall from Dayton 2005 was to make it available as an assembled amp AND as a kit. From my brief perusal of the amp shown in Wayne's hotel room, the 'kit' construction task may be only a bit more involved than plugging a CPU and cards into a computer motherboard. Again, I have no real information, only guesses (hopefully intelligent guesses G). 73, Don W3FPR -Original Message- Hell, it won't even turn on out of the box. IT'S A KIT! I bet even the FCC can figure that one outg. Dan / WG4S / K2 #2456 snip... and no 12-10M out of the box. /snip ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] C75
Hi list is C75 used on the main pc board I noticed in the photo in appendix D fig 1 that there is a cap installed on the board I have not got this installed on my K2 and cant find it in the manual have I missed it or is it not used ? hope to hear from you soon Chris ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: Amplifier's close in IMD product test
Does anyone know how to test an amplifier, or for that matter a transceiver, for close in IMD products? What kind of equipment is needed? Ken KG0WX K2 #4913, XG2 _ Is your PC infected? Get a FREE online computer virus scan from McAfee® Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] C75
Chris, Indeed, if (and only if) you have the K160RX option, C75 is to be populated with a 470 (marked 471) uF capacitor (check page 70 of the manual for an explaination). 73, Don W3FPR -Original Message- Hi list is C75 used on the main pc board I noticed in the photo in appendix D fig 1 that there is a cap installed on the board I have not got this installed on my K2 and cant find it in the manual have I missed it or is it not used ? hope to hear from you soon Chris ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] elecraft case
I agree the Pelican cases are tough. We used them for the FT-920's and the 87A at WP2Z. Yes they seem to be indestructible. Worth the money. But I couldn't beat the price for this metal case which works great for the K2. The case is made to airmail electronic modules and parts around the word. It even has clips for a shoulder strap. N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, February 14, 2006 5:52 PM To: Elecraft@mailman.qth.net Subject:[Elecraft] elecraft case Tony, N2TK mentioned he had found a case for his elecraft k2. I would like to add a review Ive seen on an I-tunes podcast for a Pelican Indestructible laptop case. It is a free download and pretty darn amusing. If you have Itunes (free) and look under Let Bill Buy It. Make your own decision, but these cases are TOUGH. George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: Amplifier's close in IMD product test
Ken, In my understanding, the close-in IMD is only applied to receivers. The ARRL Handbook describes the setup in the Test Procedures chapter under Receiver Performance Tests - although they only desribe the 20 kHz setup, the 5 kHz setup should be the same, but the frequencies will be closer. 2 signal generators, a Hybrid combiner, attenuators, the receiver under test, and an audio voltmeter are the tools used. Amplifier and Transmitter IMD is different, and the output is measured while being driven with a 2 tone generator - 900 Hz and 1900 Hz are typical tones. The output is most easily monitored and analyzed with a Spectrum Analyzer. The ARRL Lab uses the setup shown in Figure 25.84 of the ARRL 2005 Handbook. 73, Don W3FPR -Original Message- Does anyone know how to test an amplifier, or for that matter a transceiver, for close in IMD products? What kind of equipment is needed? Ken KG0WX K2 #4913, XG2 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] What's with the new amplifier?
Hi Vic, Poor choice3 of words on my part. I guess a better choice of words would be that the 87A automatically adjusts for minimum swr for changes in swr within a certain range. I know it works over the swr range on 40m from band edge to band edge using a 402cd. I don't manually program the 87a. I leave the amp find the best tuning. This way it is one less thing I need to worry about during a contest. Don't know if this is the best way, but it seems to work fine. Maybe this is called the lazy man's setup? I use an Acom 2000A at home. The amp is in the basement. The remote control head is in the shack. Very quiet this way - hi. Looking forward to the Elecraft 1500W amp. My wish list is: - 6-160M - select a mode for continuous auto-tune like the 87a - remote control head so I don't need the amp in the shack - QSK switch-over times comparable to Acom and Alpha. - Lots of metering info like the 2000a. 73, N2TK, Tony -Original Message- From: Vic K2VCO [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 14, 2006 5:32 PM To: N2TK, Tony Cc: 'Augie (Gus) Hansen'; 'Jeff Stai'; 'Elecraft Reflector' Subject:Re: [Elecraft] What's with the new amplifier? N2TK, Tony wrote: Yes, the 87A has an auto tuner. From page 7 of the manual: On any frequency where your antenna VSWR exceeds 1.5:1, it's important to manually program the ALPHA 87A for a proper match. See manual sections 7.2-7.4. Efficiency, linearity, and output often can be improved even when VSWR is less than 1.5:1. The 87A does not contain an antenna tuner. The SWR will need to be tuned via the antenna or an external tuner connected to the output of the Alpha 87A. http://www.alpharadioproducts.com/87A_manu.pdf Yes, there is a mode that you can use to adjust the 87A for an antenna that isn't perfectly matched, just like you can with any manually tuned tube amplifier. No it does *not* have a built-in tuner! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Amplifier's close in IMD product test
In a message dated 2/14/06 6:54:20 PM Eastern Standard Time, [EMAIL PROTECTED] writes: Does anyone know how to test an amplifier, or for that matter a transceiver, for close in IMD products? What kind of equipment is needed? That's what a two-tone test is for. The RUT (Rig Under Test) is set up for SSB operation, and two pure sinewave nonharmonically related audio tones in the audio passband are fed into it. Output is examined with a spectrum analyzer. A perfect rig would emit two carriers and nothing else. Imperfections (odd-order IMD products) show up as carriers besides the two desired ones. 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] S/N 5240 On The Air
Craig, The horizontal loop is working great. I tried getting into the 20 meter net but I experienced massive QRN just after it started. Turned out, my Grandson turned on the big screen TV in the family room. I heard that's the downside of having a horizontal loop on the roof and they're not kidding. This morning I worked ES3RM in Estonia on 20 meter PSK31 using 8 watts(!). 20+ years ago, I never worked Europe with my Yaesu FT101E at 100 watts (just about the same sunspot cycle). With the K2 I've had just 3 QSO's so far: Cuba, Missouri, and Estonia all under 10 watts. The K2 is a great radio. Kevin N8IQ -Original Message- From: Craig D. Smith [mailto:[EMAIL PROTECTED] Sent: Sunday, February 12, 2006 6:42 PM To: 'Kevin Shaw' Subject: RE: [Elecraft] S/N 5240 On The Air Hi Kevin ... Congrats!! The antenna and tuner must be working! And, you got your Cuba contact first thing! Got the internal tuner complete here and tested it last nite on the CW sprint contest. Only 25 contacts, but my random wire works at least somewhat on 20, 40 and 80. Listened to most of the Elecraft 20M net, but it seemed to end before I could check in. Will try again on 40 later listen for you. 73 ... Craig AC0DS Craig D. Smith PowerSmith Consulting 1009 Alder Way Longmont, CO 80503 phone: 303-678-7958 email: [EMAIL PROTECTED] web: www.PowerSmithConsulting.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Shaw Sent: Sunday, February 12, 2006 3:10 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] S/N 5240 On The Air Well, I'm officially on the air. Just put up my horizontal loop antenna (2 WL on 40 meters) this afternoon. No mean feat with the winds the way they are today. My first QSO was with Jose CO3VK down in Cuba on 20 meter PSK. I hope to have some success on the Elecraft net tonight. Be gentle, my CW skills are rusty. Kevin N8IQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT solder pot
I think Elecraft supplies wire in which the enamel will melt in the solder pot --- is that true? Tom WB2QDG - Original Message - From: Rick [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 13, 2006 9:22 PM Subject: Re: [Elecraft] OT solder pot Thanks for the info guys, I will have to try straight solder no/flux. That will probably eliminate the smoke when at temp. So am I to assume that I must strip the emamel first, then use paste and dip (again) to tin? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT solder pot
Yes Tom, the Elecraft supplied wire is 'heat-strippable'. Whether that heat is applied with a 'solder blob', a solder pot, or a BIC lighter flame makes little difference (except that the disposition of the bits of burned-off enamel are a bit different for each method) - the 'BIC' method requires an extra tinning step. 73, Don W3FPR -Original Message- I think Elecraft supplies wire in which the enamel will melt in the solder pot --- is that true? Tom WB2QDG - Original Message - From: Rick [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 13, 2006 9:22 PM Subject: Re: [Elecraft] OT solder pot Thanks for the info guys, I will have to try straight solder no/flux. That will probably eliminate the smoke when at temp. So am I to assume that I must strip the emamel first, then use paste and dip (again) to tin? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Amplifier status
Actually, looking for something to sit behind my Pro III and behind my K2 backup rig on occasion. Thanks, Rich - Original Message - From: Ken Bessler [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 13, 2006 11:06 PM Subject: Re: [Elecraft] Amplifier status From: Sandy W5TVW [EMAIL PROTECTED] To: Rich McCabe [EMAIL PROTECTED], elecraft@mailman.qth.net Subject: Re: [Elecraft] Amplifier status Date: Mon, 13 Feb 2006 22:25:50 -0600 How much power in and out you looking for? If you want an amp for something like a K1 or KX1 there's a kit called the HF Packer that works from 160-10 and really a fine little amplifier! It will deliver 35 watts with about 1.5-2 watts of drive. 73, Sandy W5TVW Opinion seconded! I built one of the K5OOR amps and it worked great - I managed to get about 40w on 40m out of mine. Nice kit to build. 73's de Ken KG0WX K2 #4913, XG2 _ Don't just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
