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Total 2 documents matching your query.

1. [Amps] 572B tubes replacements for 811A's (score: 251)
Author: zs6arf at telkomsa.net (Wynand)
Date: Sat Apr 5 07:02:07 2003
I read in the forum about replacing 811a's with 572B's as a direct drop in replacement. Can it really be that simple. I have a Ameritron with three 811a's in it. Can I just swop the 811a's for 572B's
/archives//html/Amps/2003-04/msg00034.html (6,603 bytes)

2. [Amps] Tuned Input for classic grounded grid with two 4-250's (score: 251)
Author: zs6arf at telkomsa.net (WFVW)
Date: Sat Mar 15 10:22:00 2003
Greetings, I am busy building a classic grounded grid amp with two 4-250 tubes. I would like to have a tuned input. I do not intend to cover the WARC bands with the amp as yet. I have two choices: (1
/archives//html/Amps/2003-03/msg00579.html (6,857 bytes)


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