In Reply to: Help me ID this ST70 mod posted by Idler on March 15, 2016 at 12:56:17:
Looking at it again I now see 4 tubes. That might be a Sutherland or an early Audio Research board. Audio Research did a board of their own before marketing their own amps.
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Follow Ups
- RE: Help me ID this ST70 mod - xaudiomanx 21:42:23 03/15/16 (0)