Hi all I've been asked to repair a Roost 50w guitar amp. Its a fairly typical kinda design with 2 x el34's. The bit I'm having difficulty understanding is that it uses a full wave rectifier (not a problem) but the negative side of the rectifier is connected to ground via a resistor then a fuse. I see the point of the fuse but why the resistor? The problem is that something is causing the resistor to fry (and therefore no HT)which I 've yet to find. I'm hoping its a chafed wire grounding out. The valves test ok and so far not found a short in the smoothing caps.
Any one got any idea why a resistor would be put in the rectifier? The only reason I can think of is to cause some kinda sag on the HT.
Cheers Just