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1. [AMPS] 10m modification for Ameritron AL-800H (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Tue, 20 Jun 2000 09:39:34 +0300; I have a AL-800H without 10m modification. Could somebody please let me know how to do it ? Thanks. 73 de Mike, YO3CTK -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.c; /archives//html/Amps/2000-06/msg00268.html (6,571 bytes)
2. [AMPS] RF filament choke for indirectly heated cathodes? (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Thu, 22 Jun 2000 16:45:07 +0300; Dave, Mauri, Perhaps you have some difficulty with the English language, but what you have expressed above is non-sequitor. You say..... ?Most of those suppressors are actually not working at all, an; /archives//html/Amps/2000-06/msg00332.html (9,858 bytes)
3. [AMPS] WTB: HF Amplifier (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Thu, 13 Jan 2000 15:30:55 +0200; Hello US subscribers, I'd like to buy an used but perfectly working HF amplifier and I thought to ask you first. The unit must be legal limit or near it, and it must work on 220V/50Hz mains. QSK is n; /archives//html/Amps/2000-01/msg00251.html (7,243 bytes)
4. [AMPS] Bias for SB-220 (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Wed, 02 Jun 1999 15:03:13 +0300; Being on this thread, why one can possibly need RF-actuated electronic bias switching ? Could it be in order to save some power dissipated by the final tubes, corresponding to the amount of idle curr; /archives//html/Amps/1999-06/msg00034.html (9,446 bytes)
5. [AMPS] Bias for SB-220 (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Wed, 02 Jun 1999 17:03:06 +0300; W8JI: The real problem is wasted power and heat. Letting the bias run in full-tilt on condition is like putting a 600-1000 watt space heater the room. Ok, let me see: 1500 out at 60% efficiency means; /archives//html/Amps/1999-06/msg00044.html (9,462 bytes)
6. [AMPS] Progress report / Jennings vacuum cap (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Thu, 08 Apr 1999 20:36:55 +0300; I'm happy to report that I just finished building and adjusting the Tetrode Boards kit by G3SEK. It works superbly, just as advertised. Congratulations, Ian. Now starting with the RF deck for the fut; /archives//html/Amps/1999-04/msg00162.html (7,125 bytes)
7. [AMPS] Please ignore (score: 1): Author: yo3ctk@qsl.net (Mihail Mateescu); Date: Mon, 08 Mar 1999 12:34:41 +0200; This is a test, please ignore. Have had problems with my provider lately. Thanks. 73 de Mike, YO3CTK -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrati; /archives//html/Amps/1999-03/msg00161.html (6,472 bytes)
8. [AMPS] Re:Grounded-Grid Efficiency (score: 1): Author: yo3ctk@qsl.net (Mihail Mateescu); Date: Thu, 11 Mar 1999 17:39:14 +0200; efficient, Class > B is about 50% and class C around 65%. Is this right or am I too low? Yes, Jon, it's been covered before. In the ensuing debate it's also been pointed that circuit topology has abs; /archives//html/Amps/1999-03/msg00229.html (7,150 bytes)
9. [AMPS] Re:HV on tube w/o filament voltage (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Mon, 29 Mar 1999 20:11:36 +0300; Got a question: How hard is it on a tube to have the HV applied to the plate w/o the filaments turned on. The reason I ask is that unknown to me, a relay must have stuck in my power supply control un; /archives//html/Amps/1999-03/msg00667.html (8,722 bytes)
10. [AMPS] Re: L-Net calculations (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Tue, 16 Feb 1999 09:22:16 -0500; Hi Jon, If plate impedance is 4600 ohms in parallel with 7.6 pF and if you insert a 1uH inductor between the anode and the TUNE cap, then plate impedance will be "seen" by the TUNE cap as 2700 ohms i; /archives//html/Amps/1999-02/msg00419.html (6,896 bytes)
11. [AMPS] Re: L-Net calculations (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Tue, 16 Feb 1999 09:24:31 -0500; Hi Jon, If plate impedance is 4600 ohms in parallel with 7.6 pF and if you insert a 1uH inductor between the anode and the TUNE cap, then plate impedance will be "seen" by the TUNE cap as 2700 ohms i; /archives//html/Amps/1999-02/msg00420.html (6,929 bytes)
12. [AMPS] Plate load charts (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Tue, 5 Jan 1999 08:23:16 -0500; I'd like to add a correction to otherwise pertinent comments of Peter: Ten amps is the PEAK value of current and therefore it's not correct to calculate dissipation based upon this value. It can be d; /archives//html/Amps/1999-01/msg00070.html (9,561 bytes)
13. [AMPS] Is February QST out ? (score: 1): Author: yo3ctk@qsl.net (yo3ctk@qsl.net); Date: Wed, 27 Jan 1999 08:11:52 -0500; Hi folks, I hope that I won't get a reprimand for posting something so foreign to AMPS reflector' usual topics. But for some days now I watched the ARRL/CW/QST/Handbook debate so .... Anyway, here's; /archives//html/Amps/1999-01/msg00466.html (7,123 bytes)

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