Victoria Bassman making crazy noise. Help please.

quote:

---

I've had the amp for about two months and it started this squealing noise about a month ago. I've changed all pre amp tubes. When the noise starts nothing I do will make it stop.

---

I think this amp is hand wired with the components mounted on a eyelet board like the original. If so it could ne a bad solder joint, bad coupling capacitor somewhere, microphonic capacitor or resistor. When a noise just occurs randomly I go inside with the amp powered up, and gently tap each component with the plastic handle of a small screwdriver. If I do not find a component that is microphonic meaning it makes a lot of noise when I tap it, I then re-heat all the solder joints on the component eyelet board and see if the noise comes back. Sometimes heating and cooling cycles from normal amp usage will aggravate marginal solder connections. If none of that works you pretty much have to wait until it makes the noise and trace it down to the source with a oscilloscope, which for the average person means taking it to a amp tech. If you are comfortable doing this kind of thing, there are some useful Youtube videos on troubleshoot noisy amps. FYI didn't listen to the audio, wife is asleep right next to me, will check it out tomorrow.

Thanks man. I'm gonna take it to my tech in the the next few days. Now if could only find out where this other buzz is coming from. Tech told me that bassmans just rattle and there was nothing I could do about it.