My Mesa Boogie Road King is not turning on at all, It blew the 4amp 250v slo-blo fuse . I replaced the fuse and put two new 5u4g rectifier tubes in, one of the old ones was more than suspect, (like the base of the tube was loose) when I try to fire it up I get nothing at all now, no lights, no hums, nothing at all. Could the input transformer go that quick. I have 2 dual rects. the road king and the tremoverb, the tremoverb is 12 yrs old , I have had tubes go in it , a fuse, but it always fired right back up. The Road King is only 5 yrs old I've replaced the 2 el34's and the 46L6's and the 2 5U4G's still nothing.
Any ideas what it could be or had similar problems?
Any ideas what it could be or had similar problems?
You need to see a very experienced Amp tech who has a variac. First thing to diagnose is transformer failure.
Don't quite see why you would need a variac for repairing it?, a simple multimeter on the ohms range will easily check the transformer.
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