Home |
Search |
Today's Posts |
#1
Posted to rec.audio.tubes
|
|||
|
|||
McIntosh MC-40 small-tube replacement ?
One of my MC-40s has a sound (from the speaker) that could be described as a loud whispering or scratching. Swapping tubes reveals it to be the 12AX7 (the one with the metal shield). Should I replace just this one, or go ahead and replace all 4 (per amp) of the small-signal tubes (12AX7 * 2, 12AU7, 12BH7) ? Not trying to cheap out, but no point in replacing a tube with one that may be inferior, and I've always had the impression that the non-output tubes tend to last forever. Please advise, thanks, John |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
McIntosh Driver Board Transistor Replacement | Tech | |||
Dynaudio monitors paired with small McIntosh tube amp? | Pro Audio | |||
tube replacement | Vacuum Tubes | |||
F.S. small tube amp | Vacuum Tubes | |||
NOS tube replacement | Vacuum Tubes |