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1. Re: [Amps] Question for R. Measures (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Fri, 21 Nov 2003 09:03:31 -0800 (PST); Todd To expand on Rich's reply. Amp builders in the 70s and 80s faced a similar question when deciding what tube to use in that era. There were two choices in the big bottle arena, the 3-1000Z triode; /archives//html/Amps/2003-11/msg00314.html (9,050 bytes)
2. Re: [Amps] IMD Specs? (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Sat, 22 Nov 2003 09:18:34 -0800 (PST); Randall It depends on the tube you're looking at. IMD numbers are not essential information for Amp Design. So manufacturers only release them when they have a superior product as a marketing ploy. E; /archives//html/Amps/2003-11/msg00324.html (8,269 bytes)
3. Re: [Amps] 3CX800A vs 3CX800A7? (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Sat, 22 Nov 2003 21:26:07 -0800 (PST); Hi Joe The answer to your first question is yes and no. The 3CX800A7 is an evolution of the 3CX400A7/8874. The answer to your second question is no. There is no such animal as the 3CX800. The number; /archives//html/Amps/2003-11/msg00330.html (8,131 bytes)
4. Re: [Amps] 3CX800A vs 3CX800A7? (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Sun, 23 Nov 2003 10:11:51 -0800 (PST); Are we having the same conversation ? K2XX posed a question about the final digit in the designation for the 3CX800A7. I explained its meaning and how it's derived. Go back and reread Joe's question; /archives//html/Amps/2003-11/msg00337.html (7,670 bytes)
5. [Amps] A CALL TO ARMS ! (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Tue, 10 Feb 2004 21:50:00 -0800 (PST); Tomorrow the FCC will hold a public meeting where it is likely they will introduce an NPRM which if implemented will relax limitations on Part 15 devices between 2 and 80 Mhz. This in order to facili; /archives//html/Amps/2004-02/msg00073.html (7,511 bytes)
6. Re: [Amps] A CALL TO ARMS ! (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Fri, 13 Feb 2004 08:58:33 -0800 (PST); Good point Rich The point of BPL is to provide "the last mile" of transmission. In this case between the telephone company central office and the end user. There is probably less than half a dozen tr; /archives//html/Amps/2004-02/msg00102.html (11,177 bytes)
7. Re: [Amps] tube cooling (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Sat, 14 Feb 2004 08:27:09 -0800 (PST); Mark the critical points that need to be met when cooling a tube is to keep both the plate and cathode-heater seals below their maximum ratings. Typically they are between 200 and 250 Degrees Celsius; /archives//html/Amps/2004-02/msg00106.html (8,181 bytes)
8. [Amps] BPL NPRM released (score: 1): Author: ROBERT MARSTON <rmarston@sbcglobal.net>; Date: Tue, 24 Feb 2004 15:17:37 -0800 (PST); While this is off topic for the Amps list given the gravity of the situation is definitely worthwhile and relevant. The rulemaking number is 04-37 == Thanks Mark Good to see we have an OWL with eagle; /archives//html/Amps/2004-02/msg00233.html (12,479 bytes)

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