Graham wrote:
Ok thanks for the link , thats very close , this is from a skanti
400 w ssb tx , but as its no longer in production, the makers are not
'helping' looks like the easey way may be to use a 500mA microwave
oven fuse ... but i dont think that will be a 'quick blow' type of
fuse , the pa uses qty 2 4cx250-b in parallel and a big 400hz
invertor psu running from 24 v dc @ 45 amps for the whole set ...

Microwave oven fuses are on the transformer primary and are normally
intended for 250VAC maximum use. 3AG types will sustain an arc for a hell
of a long time with 1KVDC across them. Remember, AC arcs will quench a
lot easier than DC.

Call Bussman and see what they can do for you.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."