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Total 8 documents matching your query.

1. [TenTec] Final Amplifier Class (score: 1): Author: John Huggins <john@johnhuggins.com>; Date: Sat, 01 Sep 2007 20:02:48 -0400; Ladies and Gentlemen, I frequently contribute technical knowhow to a CB trucker's forum (before you press delete please read on). The question came up concerning my assertion the single final transis; /archives//html/TenTec/2007-09/msg00007.html (8,965 bytes)
2. Re: [TenTec] Final Amplifier Class (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Sat, 01 Sep 2007 14:40:52 -1000; John, The short answer is: It depends. Once upon a time it was standard procedure to run the final amplifier in an AM transmitter in class C. This works fine when the final amplifier is the stage tha; /archives//html/TenTec/2007-09/msg00010.html (8,063 bytes)
3. Re: [TenTec] Final Amplifier Class (score: 1): Author: John Huggins <john@johnhuggins.com>; Date: Sat, 01 Sep 2007 20:53:37 -0400; Ah yes, that is what I forgot. If you modulate the final stage it can be C, but if the modulation occurs earlier you need linear amplification. Many thanks for jogging my memory on that simple truth.; /archives//html/TenTec/2007-09/msg00011.html (8,736 bytes)
4. Re: [TenTec] Final Amplifier Class (score: 1): Author: Kevin Purcell <kevinpurcell@pobox.com>; Date: Sat, 1 Sep 2007 17:57:11 -0700; For background see http://en.wikipedia.org/wiki/Electronic_amplifier I don't know for sure but I would guess AB (as that's what everyone uses). About 50% efficiency at best. Yes :-) But you have to w; /archives//html/TenTec/2007-09/msg00012.html (10,918 bytes)
5. Re: [TenTec] Final Amplifier Class (score: 1): Author: Kevin Purcell <kevinpurcell@pobox.com>; Date: Sat, 1 Sep 2007 18:05:07 -0700; You can build AB or B amps from single or multiple devices. AB or B class amps don't have to be paired. The AB or B just refers to how the are switched on during the cycle. Just having one device wil; /archives//html/TenTec/2007-09/msg00013.html (8,783 bytes)
6. Re: [TenTec] Final Amplifier Class (score: 1): Author: "Ron Castro" <ronc@sonic.net>; Date: Sat, 1 Sep 2007 18:06:35 -0700; In most all cases of "multi mode" amplifiers, Class AB2 is used. Class A is nearly perfectly linear, but is never more than 50% efficient, which is unacceptable at most moderate to high power levels.; /archives//html/TenTec/2007-09/msg00014.html (11,886 bytes)
7. Re: [TenTec] Final Amplifier Class (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 1 Sep 2007 20:35:32 -0500; Being one that runs a bit of AM on the HF bands, the latest and greatest solid state output stages is Class E. The advantages, very efficient, very clean, very reliable and very high power. Check wit; /archives//html/TenTec/2007-09/msg00016.html (9,474 bytes)
8. Re: [TenTec] Final Amplifier Class (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Mon, 03 Sep 2007 10:33:41 -0600; Linearity is not high on the priorities of CB makers, less so for those making illicit amplifiers. If mostly linear for SSB/AM most PA's run class AB or B. A single active device works for RF class A; /archives//html/TenTec/2007-09/msg00070.html (12,235 bytes)

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