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- Fri May 16, 2025 10:03 pm
- Forum: Technical Discussion
- Topic: Low Volume Output and Hypersensitive Grid Connection on Phase Inverter
- Replies: 6
- Views: 457
Low Volume Output and Hypersensitive Grid Connection on Phase Inverter
I’m trying to resurrect an ’80s MTI-era Ampeg V5. Started by replacing all caps and any resistors that were more than 5% out of tolerance. Also cleaned all pots and replaced a mixed bag of mismatched power tubes with matching set of Tung-Sol 6550's. After confirming that the voltages on pins 3, 4, a...