I did check the voltages on V1 and compared them to a target chart from a similar Metro kit and they were all pretty close.
Not really sure what to look for...
Search found 2 matches
- Mon Aug 19, 2013 5:54 pm
- Forum: Technical Discussion
- Topic: 50W Plexi clone - V1 tube hum
- Replies: 16
- Views: 3819
- Mon Aug 19, 2013 4:33 pm
- Forum: Technical Discussion
- Topic: 50W Plexi clone - V1 tube hum
- Replies: 16
- Views: 3819
50W Plexi clone - V1 tube hum
Hi - I recently built a 50W 1987 Plexi clone from a mostly Triode kit. Also added a Lar/Mar PPIMV. Amp sounds amazing, but after a couple of hours of play time, the V1 preamp tube started to hum quite loudly - even with no input connected. Otherwise, the amp sounded exactly the same. I replaced the ...