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1. [Amps] triode vs tetrode (score: 1): Author: Joe <nss@mwt.net>; Date: Mon, 5 Dec 2016 18:06:33 -0600; OK like a 3-500Z, 3CX bla bla bla etc. are triodes, plate, grid, and well filament. Most of these tubes run grounded grid correct? so the grid is simply grounded. Now the 4CX bla bla bla is plate, sc; /archives//html/Amps/2016-12/msg00105.html (7,572 bytes)
2. Re: [Amps] triode vs tetrode (score: 1): Author: mike via Amps <amps@contesting.com>; Date: Mon, 5 Dec 2016 19:13:47 -0500; When I was in electronics class the teacher called the screen grid in a tetrode an accelerator. With that not doing any accelerating I don't think it would work very well. OK like a 3-500Z, 3CX bla b; /archives//html/Amps/2016-12/msg00106.html (8,248 bytes)
3. Re: [Amps] triode vs tetrode (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Mon, 5 Dec 2016 18:20:45 -0600; Well, it worked in my 813 GG amplifier. But don't count on being able to do that with very many tetrodes. Among other things, you have to be careful not to exceed the ratings for both grids. 73, Mike; /archives//html/Amps/2016-12/msg00107.html (7,762 bytes)
4. Re: [Amps] triode vs tetrode (score: 1): Author: Ken K6MR <k6mr@outlook.com>; Date: Tue, 6 Dec 2016 00:33:36 +0000; When I was in electronics class the teacher called the screen grid in a tetrode an accelerator. With that not doing any accelerating I don't think it would work very well. Not as popular now, but bac; /archives//html/Amps/2016-12/msg00109.html (7,401 bytes)
5. Re: [Amps] triode vs tetrode (score: 1): Author: "Fern Rivard" <crc@cyberlink.ca>; Date: Mon, 5 Dec 2016 17:54:13 -0700; A better way yet is to go G2DAF where the grid is swapped with either a 100 ohm or 200 ohm non inductive resistor and a pair of 6AX4 are used as rectifiers to drive the screens with the resulting dc; /archives//html/Amps/2016-12/msg00110.html (8,436 bytes)
6. Re: [Amps] triode vs tetrode (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Mon, 5 Dec 2016 19:04:24 -0600; If that's the amp design I'm thinking about (4CX250B), it's a terrible design. It was notorious for splatter and distortion. With 813s, maybe it was OK. 73, Mike www.w0btu.com _______________________; /archives//html/Amps/2016-12/msg00111.html (7,461 bytes)
7. Re: [Amps] triode vs tetrode (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Tue, 06 Dec 2016 03:26:13 -0500; The G2DAF configuration was a horrible idea. Don't go there. G2DAF's original receiver, transmitter and amplifier (as featured for years in various RSGB publications) used to be in the RSGB Museum...; /archives//html/Amps/2016-12/msg00120.html (10,617 bytes)
8. [Amps] triode vs tetrode (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 6 Dec 2016 04:16:52 -0800; OK like a 3-500Z, 3CX bla bla bla etc. are triodes, plate, grid, and well filament. Most of these tubes run grounded grid correct? so the grid is simply grounded. Now the 4CX bla bla bla is plate, sc; /archives//html/Amps/2016-12/msg00124.html (8,949 bytes)
9. [Amps] triode vs tetrode (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 6 Dec 2016 04:48:49 -0800; If that's the amp design I'm thinking about (4CX250B), it's a terrible design. It was notorious for splatter and distortion. With 813s, maybe it was OK. 73, Mike www.w0btu.com format. The trick in ge; /archives//html/Amps/2016-12/msg00125.html (8,964 bytes)
10. [Amps] triode vs tetrode (score: 1): Author: Rex Greenwell <rex@k0kp.com>; Date: Tue, 6 Dec 2016 05:28:37 -0600; Eimac had a bulletin out describing the 4-1000A tetrode in grounded grid, it states "Most tetrodes do not perform satisfactorily when connected as a high-mu triodes. Control grid dissipation usually; /archives//html/Amps/2016-12/msg00236.html (8,795 bytes)
11. Re: [Amps] triode vs tetrode (score: 1): Author: "Paul Kraemer" <elespe@lisco.com>; Date: Fri, 9 Dec 2016 19:43:30 -0600; I recall a article in QST or CQ a long time ago something to do with tapping the screen on the filament choke to improve using tetrodes in gg? Written by the two Eimac engineers but can't find it the; /archives//html/Amps/2016-12/msg00240.html (9,468 bytes)

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