tsingle999
New member
I have a hum that seems to follow the 45 tube. Its louder than normal hum. Is it a bad tube?
Hum
- Thread starter tsingle999
- Start date
Paul Joppa
Moderator
The hum pot exists because tubes vary from one to another. But if you cannot get rid of the hum with the hum pot, then it's most likely the tube.
tsingle999
New member
Ouch! The hum pot doesn't affect it. Ok thanks guys!
Its a Vaic vv45. Theres no issues using it with the sr45?
Filament voltage 2.5, filament current 7.35 amps, grid voltage 42
Ug and gm tested at ia 50 ma and ua 280 volts..
Its a Vaic vv45. Theres no issues using it with the sr45?
Filament voltage 2.5, filament current 7.35 amps, grid voltage 42
Ug and gm tested at ia 50 ma and ua 280 volts..
Paul Joppa
Moderator
Hope that 7.35 amps is a typo! Should not be any issues, except to check that the power line voltage is close to 120v.
