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Original Message
Its amazing where these things turn up.
Posted by Ralph on February 17, 2016 at 09:18:00:
This is an amplifier that was built by a friend of mine, based on the early MA-1 circuit, but using 8 power tubes per channel. I'm pretty sure it runs series filaments.
If I remember right this amp was built as a one-off about 1985 or so.