Join Date: Dec 2000
Location: Chicagoland, IL.
Re: Amp tube replacement time?
Your pots are dirty.
Itís not a tough fix, but if youíre not familiar with tube amps, I would not attempt it.
Sounds like she just needs a checkup and cleaning. If the tubes are otherwise fine and not noisy when you play them, itís just thermal expansion of the glass and metal inside. Donít fret over it.
If the tubes are microphonic and you hear every little bump to the amp through the speaker or a ringing when you play, they need to be replaced.