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21. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: 2@vc.net (measures); Date: Thu, 26 Oct 2000 00:19:00 -0700; Not a good wager. cheers - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST; /archives//html/Amps/2000-10/msg00559.html (7,816 bytes)
22. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: 2@vc.net (measures); Date: Thu, 26 Oct 2000 00:19:01 -0700; There is no negative feedback. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-R; /archives//html/Amps/2000-10/msg00560.html (9,861 bytes)
23. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: 2@vc.net (measures); Date: Thu, 26 Oct 2000 00:36:48 -0700; Guys in SM-land do 2-tone tests on their DAFt amplifiers, so naturally the numbers are always wonderful. Welcome to Fantasyland. . cheers, Ian - Rich..., 805.386.3734, www.vcnet.com/measures. end --; /archives//html/Amps/2000-10/msg00561.html (9,293 bytes)
24. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 26 Oct 2000 07:05:59 +0100; The original G2DAF articles appeared in 'Radio Communication' and are reproduced on my web site for historical reference. 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for R; /archives//html/Amps/2000-10/msg00564.html (8,952 bytes)
25. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 26 Oct 2000 12:36:02 EDT; True! And it is a shame that they aren't! If the DAF is built per the original design, with a time constant in the screen circuit that will allow the screen voltage to follow the envelope of the SSB; /archives//html/Amps/2000-10/msg00570.html (8,369 bytes)
26. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 26 Oct 2000 17:03:59 EDT; Hi RIch, The effective screen resistance of the 4-125A is going to vary quite a bit in the DAF as the voltage is going to wander. Let's assume a typical value, for the moment, in the range of 10K-15K; /archives//html/Amps/2000-10/msg00585.html (8,890 bytes)
27. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: kc4slk@csrlink.net (Mike Sawyer); Date: Thu, 26 Oct 2000 18:33:57 -0400; Guys, Forgive me for being a knuckle head, but because the human voice is asymmetrical, won't this prevent the screen circuit from properly following the "modulated" grid, whereby tossing linearity o; /archives//html/Amps/2000-10/msg00588.html (10,313 bytes)
28. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: 2@vc.net (measures); Date: Thu, 26 Oct 2000 20:30:45 -0700; Screen potential does not wander during a 2-tone test. end - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Adm; /archives//html/Amps/2000-10/msg00601.html (8,865 bytes)
29. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: nospam4me@juno.com (nospam4me@juno.com); Date: Thu, 26 Oct 2000 23:15:01 -0700; You can see the diagrams from some of the past amps words at http://sonic.ucdavis.edu on the Amateur Radio Pages. I've added a Siltronix page for people with said rigs... :-) cheers skipp [snip] From; /archives//html/Amps/2000-10/msg00602.html (8,521 bytes)
30. SV: [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Fri, 27 Oct 2000 10:13:26 +0200; Tnx just great. de Hans SM5KI -- -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contestin; /archives//html/Amps/2000-10/msg00604.html (9,100 bytes)
31. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 27 Oct 2000 11:43:03 EDT; two Hi Rich, Why won't an input signal derived screen "supply", with a 50uS time constant, follow the RF envelope during a two-tone test?? 73, Marv WC6W * ____________________________________________; /archives//html/Amps/2000-10/msg00611.html (8,055 bytes)
32. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: 2@vc.net (measures); Date: Fri, 27 Oct 2000 09:05:43 -0700; A good clue is that observed screen potential does not change during a two-tone test. // To be able to follow 7MHz, 50uS won't get it. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on; /archives//html/Amps/2000-10/msg00613.html (8,004 bytes)
33. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 27 Oct 2000 12:36:54 EDT; It doesn't have to follow 7MHz or 30MHz or even 1.8 MHz. It only has to follow the envelope of the two-tone signal which has been bandlimited by passing through a couple kHz wide filter. 10 KHz compl; /archives//html/Amps/2000-10/msg00614.html (8,267 bytes)

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