crazyeddie
Well-known member
After finding out my RM22 has run away bias on one of the tubes they were replaced and the amp given a clean bill of health. In my original post about the amp shutting down I though after checking the bias settings that the tubes were the culprit.
My amp tech replaced the tubes and found a higher than normal plate voltage of 390 volts. Adjusting the bias to a lower setting of around 11mv set the amp in a decent range that wouldn't fry my tubes after a week of use. I was worried if the amp would be weak and sterile but my tech assured me the amp sounded great.
Got the amp home and he wasn't kidding, the amp sounded fantastic. But after an hour of playing the amp shut down like it did when I first got it. I have a video posted on YouTube showing what the amp is doing. Skip to 1:55 to see it shutting down: http://youtu.be/FNJdVpcB9io
Thoughts anyone??
My amp tech replaced the tubes and found a higher than normal plate voltage of 390 volts. Adjusting the bias to a lower setting of around 11mv set the amp in a decent range that wouldn't fry my tubes after a week of use. I was worried if the amp would be weak and sterile but my tech assured me the amp sounded great.
Got the amp home and he wasn't kidding, the amp sounded fantastic. But after an hour of playing the amp shut down like it did when I first got it. I have a video posted on YouTube showing what the amp is doing. Skip to 1:55 to see it shutting down: http://youtu.be/FNJdVpcB9io
Thoughts anyone??