Dave Belles is in NY and has a phone number.If you search the internet you will find a lot of information on your preamp.It may be normal for your preamp to have a reduced filament voltage when it is plugged in. Dave will be able to tell you if there is a problem.
Unit off tubes gowing
Guys,
I have a Belles 21A pre-amp and noticed while dusting the tubes are glowing and the unit is off. Is this standard or
does the unit need servicing?
Wig
I have a Belles 21A pre-amp and noticed while dusting the tubes are glowing and the unit is off. Is this standard or
does the unit need servicing?
Wig