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Total 4 documents matching your query.

1. [AMPS] PL-172 as GG Triode? (score: 1): Author: nx7u@primenet.com (Scott Townley); Date: Wed, 23 Sep 1998 07:08:47; I have a homebrewed PL-172 amp deck I'm working on (someone else's I bought cheap...don't throw rocks at me!). In tracing thru the circuit, it's a cathode-driven amp with provision for grid bias, but; /archives//html/Amps/1998-09/msg00242.html (7,951 bytes)
2. [AMPS] PL-172 as GG Triode? (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Sep 98 10:27:00 -0800; The suppressor is usually operated at the same potential as the cathode. Grounding the suppressor and grounding the cathode is normal, however, grounding the suppressor and driving the cathode may c; /archives//html/Amps/1998-09/msg00246.html (8,069 bytes)
3. [AMPS] PL-172 as GG Triode? (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 23 Sep 1998 19:47:49 -0400; That sounds like it was setup up for Super Cathode drive Scott. See various Bill Orr articles for some info. The screen is at ground but the cathode is now at some negative potential. Looking at my o; /archives//html/Amps/1998-09/msg00253.html (10,869 bytes)
4. [AMPS] PL-172 as GG Triode? (score: 1): Author: vk6apk@faroc.com.au (Alek Petkovic); Date: Fri, 25 Sep 1998 20:54:00 +0800; Rich is right on the mark. Conventional is best. Over here in VK6, quite a few guys are running the 8295A/PL172 pentode in class AB1 grid driven. We got the rf decks from the Yanks when they moved ou; /archives//html/Amps/1998-09/msg00265.html (8,499 bytes)

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