Electronic Musical Instruments
Ask an Electronic Musical Instruments Question, Get an Answer ASAP!
Sounds like you have an open fuse or an open primary winding in the powerr trasformer replace with the same fuse not bigger if it blows again you have an issue with your final tubesreplace them
if you have a spare replace it but only after you look for an open fuse
it could also be an open filamnet in a tube as they are wired in series and if one opens the others may not light