"Nutcase Kook "


Amp used for the first time, in 2 years of regular mains use, with a
generator. Works fine with no problems. Coincidence ?

** Spooky................


next gig back to
usual mains supply, at power up, blows the mains fuse.

** Noooooo...........

The GZ34 is failed
both sides, 0 percent output . Inspecting the fuse it has failed at an end
,
not the central (T) section and otherwise complete wire shows no sag or
discolouration. So possibly mechanical failure of fuse.

** Chemical fuses are notorious for that.


If fast make/break
intermittant action of the fuse wire at an end , would that knock out an
RR
valve?

** Rolls Royce do not make valves.

What in general happens in the failure of RRs ?

** They " fail to proceed " ..................


I've only ever seen
75 percent , same as new, or 0 percent "goodness" at prescribed current
settings of the Avo valve tester.


** Well, you ain't seen nuthin' - pal.


...... Phil