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1. [Amps] RK65/5D23 tetrode (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Fri, 12 Jan 2007 18:31:44 -0800 (PST); Hi all: I have purchased a homebrew amp which uses 2 RK65/5D23 tetrodes GG with both grids tied together, but have yet to find a satisfactory spec sheet for them. Any help appreciated... ____________; /archives//html/Amps/2007-01/msg00108.html (6,481 bytes)
2. Re: [Amps] Peter Dahl co? (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Sun, 9 Dec 2007 19:35:54 -0800 (PST); Hi all: Just a thought, but I know both Hammond and Thordarson are still in operation, serving our kin in the DIY tube-type hi-fi audio and guitar amp set - I think they both offer the ability to mak; /archives//html/Amps/2007-12/msg00117.html (6,404 bytes)
3. [Amps] cooling chimney? (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Sun, 13 Jul 2008 18:18:57 -0700 (PDT); Hi all: Here are 2 off-the-wall ideas: Can clock-type glass domes (with hole cut in top) be safely used for chimneys to fit antique globe shaped tubes like RK65/5D23, 304TL, 250TH? Also, what i; /archives//html/Amps/2008-07/msg00124.html (7,193 bytes)
4. [Amps] Choke ID? (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Tue, 14 Oct 2008 18:45:01 -0700 (PDT); Hi all: I have a couple of what I think are choke coils - they once were used between center tap and ground in a homebrew HV supply. They appear to be mil-surplus, are in a cylindrical shape 4"; /archives//html/Amps/2008-10/msg00066.html (6,641 bytes)
5. [Amps] Tube gain vs frequency (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Wed, 26 Aug 2009 19:20:37 -0700 (PDT); Hi all: I'll try to keep this short, but have several questions. First, what is/are the factor(s) that determine a tube's upper frequency response? I tried thinking (uh-oh!) but only deduced th; /archives//html/Amps/2009-08/msg00531.html (7,864 bytes)
6. [Amps] Plated screws (score: 1): Author: Stirling Schmidt <kc0nxm@sbcglobal.net>; Date: Thu, 18 Nov 2010 20:49:14 -0800 (PST); Hi all: Where's a good place to source nickel-plated brass screws? I have some from ages ago, but I'm assuming the hardware store zinc-steel variety are inappropriate for amp assembly, as they are ma; /archives//html/Amps/2010-11/msg00338.html (6,339 bytes)

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