This distortion you are hearing could be oscillation caused by circuit negative feedback interacting with a limited bandwidth output transformer (OPT). Tube amps are very sensitive to the amount of negative feedback applied. Less is better! And a better OPT (wider bandwidth) would help! Guitar amps are notorious for having poor quality OPT's. Cheap and distortion-prone! Then again that's what electric guitar players want- DISTORTION!
Strange tone Marshall DSL40C
I’m relatively new to working on tube amps. I did my research and just replaced the tubes in my Marshall DSL40c. When I tried playing through the amp, there was a distinct ring after I’d play a staccato note. It’s not feedback, just a short ringing tone almost like bad reverb. Did I potentially make a mistake while replacing the tubes or is there another issue with the amp?
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- 5 posts total
- 5 posts total