
Charvel1975
Active member
yeti":hsos6uko said:my recommendation is shuguang 12ax7b
http://www.vacuumtubesupplies.com/Vacuu ... e-p59.html
check your phase inverter tube the pretube closest to the power tubes.
follow the flowchart on FJA website.
i've also experienced some weird oscillating noises that stem from close solder traces/bad solder traces on the preamp board....but, if you're not sure what you're doing in an amp, just take it to a tech.
The Sovtek 12ax7LPS preamp tube to the far left looking at the back, I did notice that it wasn't really glowing all that bright but the rest of the preamp tubes were and 3 outta the 4 new EH 6L6's are glowing fine but one of them isn't glowing that bright??
