VOX AC30/6 TB

All valve, no solid state devices, probably made 2002 from barcode date? and
2001 date on Sovtek 5AR4.
Powered on for about 5 seconds with cracks and bangs then HT light went out
and dead.
Inside looks and smells fine but "gently" blown HT fuse. I've not tested the
valves yet.
1 of the 22K 1/3W HT R/C dropper resistors slightly discoloured and all 4
EL84 1/2W, 100 ohm grid resistors slightly discolured. Someone has crudely
cut one of the 2 grounds to the pcb, presumably trying to reduce hum when it
was working.
All DVM DC resistance measurements of the transformers seem ok.
Any pointers to known problems with this version?


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



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