In Reply to: Whistling noise on the test bench posted by J Harris on June 11, 2007 at 07:20:00:
Sounds (no pun intended!) like you're on the right track. If you're introducing sufficient noise to initiate an oscillation, I'd be looking for poor/corroded grounds in the amp as well as clean all tube sockets, etc. In other words, look for deteriorated connections and ensure all contacts are quite clean. Without this, your troubleshooting could well lead you into the weeds, so to speak.
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Topic - Whistling noise on the test bench - J Harris 07:20:00 06/11/07 (4)Follow Ups
- RE: Whistling noise on the test bench - doodlebug 07:23:09 06/11/07 (0)