Issue when both EL84 tubes are inserted [Solved]
Posted: Thu Aug 22, 2013 9:22 am
I finished piecing the amp together and it powers on! The issue occurs when I have both EL84 tubes inserted, when both are inserted, there is a high-pitched hum that is audible without any headphones/speakers plugged in. When I insert Headphones, the high-pitched-hum (from both channels) plays through the headphones and is very loud.
The strange part is this high-pitched hum completely disappears when either one of the EL84 tubes is removed. Music plays fine, no issues
I've checked all my solder-points and they seem good but there's obviously something that I'm missing. Thanks for any help you can offer!
The strange part is this high-pitched hum completely disappears when either one of the EL84 tubes is removed. Music plays fine, no issues
I've checked all my solder-points and they seem good but there's obviously something that I'm missing. Thanks for any help you can offer!