[Elecraft] Winding my first toroid.
Chris, Elecraft is quite generous with the supply of wire --- sometimes enough to do the job twice over --- no problem, press on! Bill / 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] An observation.
Some of the posts have been a little 'heavy' lately --- may I steal a little bandwidth to lighten the scene with a gem from Rudyard Kipling, a cautionary tale for us all before we hit the 'key', 'paddle' or 'send button'. A Code of Morals Now Jones had left his new-wed bride to keep his house in order, And hied away to the Hurrum Hills above the Afghan border, To sit on a rock with a heliograph; but ere he left he taught His wife the working of the Code that sets the miles at naught. And Love had made him very sage, as Nature made her fair; So Cupid and Apollo linked , per heliograph, the pair. At dawn, across the Hurrum Hills, he flashed her counsel wise -- At e'en, the dying sunset bore her busband's homilies. He warned her 'gainst seductive youths in scarlet clad and gold, As much as 'gainst the blandishments paternal of the old; But kept his gravest warnings for (hereby the ditty hangs) That snowy-haired Lothario, Lieutenant-General Bangs. 'Twas General Bangs, with Aide and Staff, who tittupped on the way, When they beheld a heliograph tempestuously at play. They thought of Border risings, and of stations sacked and burnt -- So stopped to take the message down -- and this is whay they learnt -- Dash dot dot, dot, dot dash, dot dash dot twice. The General swore. Was ever General Officer addressed as 'dear' before? 'My Love,' i' faith! 'My Duck,' Gadzooks! 'My darling popsy-wop!' Spirit of great Lord Wolseley, who is on that mountaintop? The artless Aide-de-camp was mute; the gilded Staff were still, As, dumb with pent-up mirth, they booked that message from the hill; For clear as summer lightning-flare, the husband's warning ran: -- Don't dance or ride with General Bangs -- a most immoral man. [At dawn, across the Hurrum Hills, he flashed her counsel wise -- But, howsoever Love be blind, the world at large hath eyes.] With damnatory dot and dash he heliographed his wife Some interesting details of the General's private life. The artless Aide-de-camp was mute, the shining Staff were still, And red and ever redder grew the General's shaven gill. And this is what he said at last (his feelings matter not): -- I think we've tapped a private line. Hi! Threes about there! Trot! All honour unto Bangs, for ne'er did Jones thereafter know By word or act official who read off that helio. But the tale is on the Frontier, and from Michni to Mooiltan/i They know the worthy General as that most immoral man. Rudyard Kipling Bill / 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] O.T.
Can anyone help me with a copy of the instruction manual and calibration detail for the Stockton Wattmeter that was marketed by Kanga Products a couple of years back? TIA 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] More K3 musings
Well, what a couple of weeks it has been! Found out that I have 'roofing filters' that I didn't know I had. Absolutely confirmed my aversion to 'contesting' --- much prefer to paint and watch it dry. So what is there for me --- well, in the short term, I've just ordered a a Z100 from Jack Smith to put on top of the K2 to give me confidence that I'm making life as easy as possible for the other fellow. Will I buy a K3? Of course! and Why? because I want to hear KPH again before I pull the big switch --- and what will I buy? K3/10, KBPF3 and wait for the variable filters --- To each his own, and all kudos to the Aptos team for making it possible. Bill / 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] k4jpn
Stephen if you are monitoring the reflector please email me. 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] MAR-1 spare(s)
Don, Having regard to the increasing frequency of 'senior moments' I shall get TWO --- which I expect David will declare to be double jeopardy. 73, 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] Voltage at output pin of MAR-1
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] N-Gen
A signal from Down-Under. What dc voltage should I expect at the output pin of the MAR-1? --- more than a fraction of a volt I suspect. Generator was previously OK now seems to be noiseless! TIA 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] N-Gen
Unfortunately no Alexandra --- new battery 9.68V off load 8.91V at switch on I think the MAR-1 is probably zapped. 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] K2 Optimizations?
David, greetings from Down-under. Much enjoyed 'le mot juste' above your signature. Bill Scovell?VK4SQ - Original Message - From: David A.Belsley [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Monday, August 29, 2005 10:10 AM Subject: Re: [Elecraft] K2 Optimizations? Darrell: Much in the world that is truly good is lost in the search for the optimal. best wishes, dave belsley, w1euy On Aug 28, 2005, at 7:25 PM, Darrell Bellerive wrote: I'm about to build my second K2. Stupid me, sold the first one. But then again I really like building. Being a perfectionist to the nth degree and an optimization freak, I am wondering about component tolerance and matching components. While I realize that with the components supplied and following the manual instructions will result in a rig that meets all specification, I can't help but wonder if I can't get that last little bit of perfection by selecting the best component for the job. I measure each resistor and capacitor before mounting them on the circuit boards just to confirm my correct reading of color bands or values. So if I have more than one of a certain value component, and if they have slightly different values, yet still within the tolerance, then perhaps a particular value will work better in one part of the circuit than another. Perhaps even some parts of the circuitry will benefit a tiny bit from matched components. Yes, I know that this is taking things to the extreme, but that is my perfectionist nature shining through. So, can anyone think of any circuits of the K2 that would benefit in even the slightest way by hand picking a component that is right on it's value vs. one that is near the upper or lower tolerance, or visa versa? 73, Darrell -- Darrell Bellerive Amateur Radio Stations VA7TO and VE7CLA Grand Forks, British Columbia, Canada ___ 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 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.10.16/83 - Release Date: 26/08/2005 ___ 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] T1 application
Beset with antenna restrictions I am presently constructing a cosy little kennel to house my T1 at the base of a 20 foot flagpole and I would like to feed some DC on the coax to actuate a relay to remotely initiate the tuning process. My question relates to the necessary isolating capacitors --- whilst I am currently qrp I would like to provide for 100W capability --- now, if my calculations are correct, to get below 1 ohm reactance at 1.8 MHz requires a capacitor around 0.1ufd and to support 100W operation in a matched condition (50 ohm line) a voltage rating around 70V and current 1.414A --- the question is:- Where do I find such a non-inductive capacitor or rather two of 'em? Found a couple of old large micas (Cornell-Dubilier) in the junk box which I think last saw service in WW2, I am sure they would rate well but the highest capacity was only .005ufd. TIA, BillScovell/VK4SQ (Sitting here freezing on the Sunshine Coast of Queensland and wondering if 'climate warming' is really a problem) ___ 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] T1 application
G'day John and everyone, Your immediate response confirms that this reflector never sleeps, thanks. Yes, I will need chokes either end to stop the DC supply source and destination from by-passing the RF, but the capacitors are necessary to to keep the DC out of the Tx and Tuner. Bill Scovell/Vk4SQ (still freezing) ___ 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] T1
This is probably a question that Ron could answer before I trouble Sott or Brian. The one 20pF capacitor supplied with my T1 kit is a small NPO (black edge) device with no voltage marking, it looks like a 50V item to me but maybe the're getting smaller. This part is for C2 which is spec'd at 500V --- should this part carry a voltage rating? TIA Bill / 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] T1 (C2)
Hi Wayne, Thanks for the 'heads up' (see I'm learning the US vernacular) --- lack the courage! but anyway I trust you. I know I'm going to enjoy this little product. Bill / 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] T1 and a large measure of embarrassment.
Greetings from down-under, I believe it may make me feel a little better if I share this embarrassment with the group. My T1 kit which was shipped on March 21 arrived a few days ago and yielded the usual perfect inventory, but of course the shipment preceded the Rev. A-1 errata (March 29) so I was short of two 1 watt 51 ohm resistors and an FT47-43 toroid which knowing the Elecraft service ethic are probably on their way to me now, however, carefully reading the assembly manual I saw that there were two components that could be loaded before the first 51 ohm was required namely the two female BNC connectors so I thought I would get started. I carefully aligned the connectors per the instructions and did a creditable soldering job on both --- on the WRONG SIDE of the board --- shock! horror! and a large measure of embarrassment. I don't have any sophisticated de-soldering equipment and promptly decided that a new board must of necessity be the solution, so a quick Email to Scott and Brian was sent, but minutes after doing this a long dormant adventurous streak within me manifested itself and kept saying 'there must be a way, there must' and there was! It took a board vice, two soldering irons (one in each hand) and the XYL suitably protected with heat proof gloves to perform the extraction and the task was accomplished --- the through plating undamaged and the board still looking pristine --- quite proud of myself, oops ourselves, and the earlier embarrassment just a little bit diminished. Another Email to Scott and Brian cancelling the earlier one, and now I'm just waiting on two 1 watt 51 ohm resistors because I found a spare toroid in the junk box. Cheers from 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] K2 a problem solved
A couple of weeks back I sought help for a problem encountered at the first stage of 40 Meter Transmitter alignment (Page 75). The problem was uncontrollable output power. Specifically:- Holding 'Tune' after requesting 2.0W output yielded a 'Hi Current' display and an indicated power of 19.1W. Don / W3FPR came to my assistance explaining how the K2 compares requested power with detected power to develope the required signals to adjust the drive to get the output power to the requested level. With Don's guidance we explored all the circuitry associated with this process but found everything to be OK which led Don to the conclusion that the high output was resultinfg from spurious oscillation. At this juncture Gary took over and the first issue was to determine whether the oscillation was inherent in the transmitter chain itself or a fault in the t-r switching circuitry. The answer to this question was provided by removing link W1, which immediately stopped the oscillation --- almost certainly the problem lay in the t-r circuitry --- a systematic 'trouble shoot' around Control Board Q1, Q2, Q3, Q4 and RF Board Q23 established that Q4 (2N7000) was the culprit. Tiresome though it was for a while, the nice part of this exercise was that by taking it slowly and getting good advice from Don and Gary I was able to achieve a result without any unnecessary 'invasive surgery' --- I only had to 'pull' one component, the faulty one --- left to my own devices I don't think the boards would have still looked as attractive as they do. A final word --- this is the second 2N7000 that has brought me undone on this build --- earlier on Q5 deprived me of sidetone for a while, obviously these mosfets are rather fragile devices --- whilst I did not use a mat during the build I did diligently wear a wrist band whilst assembling sensitive devices although at the time I thought that with our relative humidity being quite high that this was probably 'guilding the lily' --- I shall be more circumspect in the future. With continuing appreciation of this reflector and particular thanks to Don and Gary I''ll stop chewing up bandwidth. 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] K2
After an interrupted build K2 / 4313 nearing completion but have run into trouble at the first stage of 40-Meter Transmitter Alignment (Page 75). Elecraft Dummy Load connected. Frequency set to display 7100 KHz Power Output set to 2.0W Holding 'Tune' there is a momentary burst of side-tone then in turn the display shows:- 1) Elecraft 2) 2.04P 1.09 3) 7100 KHz But no evidence of transmit power. Tapping display shows 13.5 / 0.22. Guess I've done something stupid --- any suggestion appreciated. 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] A plea from 'Down Under'.
Just to report that Q5 was the culprit in relation to the lack of side-tone --- borrowed one from further down the build and now able to proceed. That's the last component I'm removing from plated through holes until I get a Hakko' or something similar --- and it only had three legs!!! --- still it was an excuse to celebrate with several fingers of a nice 'single malt'. My thanks to G3VVT, K4ZM and G0LNE for your support ---a great reflector! 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] A plea from 'Down Under'
Hi Jim, Tks ur response. 1)As you repeatedly press the PRE/ATT button the annunciator moves predictably between PRE --- ATT --- and extinguishment, so do not think that solder bridge is the problem, however, if for example you switch off when the annunciator is indicating ATT or is extinguished when you switch on againthe annunciator is always indicating PRE. 2) Have explored the alternative side tone sources but to no avail --- Still looking!!! 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] Need some help --- a plea from 'Down Under'
Scenario:- K2 / 4313 Alignment and Test Part #1. 1) Last item on page 42 --- everything per the manusl except the Pre-amp annunciator is also displayed. Pre-amp and Attenuator toggle OK but Pre-amp annunciator always present upon 'switch on' regardless of setting at 'switch off' --- is this a problem? 2) All OK through page 46 up to 'Audio Amplifier and Tone Generator Test' --- NO SIDE TONE!! --- referred to 'Appendix E' page 12 --- could not detect any signal at pin 25 of U6. Looking for advice on the least destructive way to proceed. TIA, 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] K2 Inventory 'problem'
They say that confession is good for the soul so perhaps I should detail my foolish mistake. I looked at the RFa bag bandolier, not too closely it turns out, and decided that it wasn't carrying any 1/2 watt resistors. Not being able to find any loose ones I counted up the number of resistors required for the RF board and compared this to the number of R's on the bandolier ---two short!!! but I had overlooked R115 and R116. After a 'heads up' (I hope I'm using that term correctly) from Don Wilhelm I looked again at the bandolier which, of course, was loaded with two 1/2 watts in their ordained position. I should not have been so quick to doubt Elecraft's reliability. My only worry now is that the 'Mojo Fairy' might punish me for this --- perhaps if I record my thanks to Christine, Walter, Judy and Somarian for a 100% perfect pack I shall be forgiven. Bill / VK4SQ p.s. I didn't suffer your headache --- I'm the proud possessor of an AADE L/C Meter --- outside of Elecraft the best $100 I ever spent. ___ 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/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 inventory question
Just completing inventory check for my second K2 (#4313)all well except can't find R50 and R58 (both 1/2 watt so not on the bandolier) are these normally loose in the RFb bag? or do they lurk in some other spot and I've had a senior moment and missed them?. I wouldn't normally bother the reflector for two R's but R50 is 1.5 Ohms and low values not easy to come by here. TIA Bill / 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/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
