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21. Re: [Amps] Power Factor correction (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Fri, 08 Mar 2013 23:37:26 +0000; I'm mainly interested in this subject because I like operating portable with my Honda Eu2000i (about 2 kVA) generator. This is an excellent generator, I can lift it without giving myself a hernia and; /archives//html/Amps/2013-03/msg00100.html (10,884 bytes)
22. [Amps] Incidental intermodulation was Rectifier equilization? (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Mon, 16 Sep 2013 12:31:09 +0100; This effect is interesting and explains something I've been aware of for some while ie. that the quality of a local oscillator or your own transmission sometimes appears to be bad when listened to by; /archives//html/Amps/2013-09/msg00196.html (12,381 bytes)
23. Re: [Amps] Cleaning Tarnish Off Ceramic Tube (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Mon, 30 Sep 2013 10:33:35 +0100; Assuming that it's Silver plated, the best and cheapest way is the old electrolytic method using Aluminium foil and sodium bicarbonate also know as Sodium Hydrogen carbonate or baking soda. See; http; /archives//html/Amps/2013-09/msg00340.html (9,528 bytes)
24. Re: [Amps] HV fuses (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Fri, 25 Oct 2013 09:51:48 +0100; In a microwave, I believe that these fuses are before the rectifier in the AC part of the circuit. I'm sure everybody knows this but I'll mention it again. As AC drops to zero volts during a cycle, t; /archives//html/Amps/2013-10/msg00427.html (10,899 bytes)
25. Re: [Amps] Anyone know a source of good quality but reasonably priced N -> 7/16 adapters? (score: 1): Author: amps@grebe.plus.com; Date: Wed, 11 Dec 2013 09:50:02 +0000; Dave, I've used Spinner 7-16 adaptors which are high quality, cost effective, and have low PIM levels but I can't help you with their performance at 4 GHz. The snag may be that Spinner UK have a min; /archives//html/Amps/2013-12/msg00076.html (8,423 bytes)
26. Re: [Amps] Fan Noise in GS-35b Amplifiers (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Fri, 21 Feb 2014 23:03:43 +0000; A possible blower you could consider is the EBM Papst G1G108-AB17-02, this is capable of over 100 CFM at low pressures and could well be adequate if you are not going to push things too hard. The goo; /archives//html/Amps/2014-02/msg00208.html (10,605 bytes)
27. Re: [Amps] Alpha 76 "SNAP" noise (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Tue, 23 Dec 2014 23:59:30 +0000; Sorry folks, are we talking about the string of smoothing electrolytics or a ceramic RF filter cap here? I'm curious about this as when I switched my 2m amp on recently which hadn't been used for abo; /archives//html/Amps/2014-12/msg00084.html (8,157 bytes)
28. Re: [Amps] Alpha 76 "SNAP" noise (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Wed, 24 Dec 2014 11:25:11 +0000; Thanks, looks like I got a timely warning I'll change them pronto. Has anybody looked into this? You would think that a small breakdown / healing of the dielectric would be muffled by the can and not; /archives//html/Amps/2014-12/msg00088.html (10,012 bytes)
29. Re: [Amps] Alpha 76 "SNAP" noise (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Thu, 15 Jan 2015 10:52:37 +0000; Thanks for the note Mike and I'm going to do the sensible thing and change the lot. I had the experience of a PSU electrolytic blowing up when I was about 16 and don't wish to repeat it, especially a; /archives//html/Amps/2015-01/msg00128.html (10,489 bytes)
30. Re: [Amps] What am I missing....balun (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Fri, 17 Feb 2017 14:35:53 +0000; Hang on a minute, lets think about this. I built a balun using one of these cores or similar and needed 14 turns to get sufficient loss on 1.8 MHz. This one has 2 turns but has 6 cores so it may not; /archives//html/Amps/2017-02/msg00115.html (10,122 bytes)
31. Re: [Amps] What am I missing....balun (score: 1): Author: John G3UUT <amps@grebe.plus.com>; Date: Fri, 17 Feb 2017 15:51:33 +0000; Oops! A clear case of engage brain before opening mouth, I'd forgotten about the square of the number of turns. John G3UUT Your numbers don't add up. Impedance increases by the square of the number o; /archives//html/Amps/2017-02/msg00120.html (8,892 bytes)

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