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Bogner Bombards EL34s

:

5/25/1998 5:32 PM

Bogner Bombards EL34s

I posted this question yesterday, but I
don't think it got posted. I purchased a
Bogner Shiva 1x12 combo recently. Of course,
I had to take it apart and have a look-see.
When I checked the cathode current on the
EL34s, I was shocked to see that it was set
to 70ma! I quickly checked the plate voltage
and was even more shocked to find that it
was 500V! That's 35W for zero signal plate
dissipation. The Svetlana EL34s are rated
for 25W. Now, the Shiva EL34s are housed
in a stainless steel cage with a fan sucking
air over them, but c'mon! I realize the
25W rating is for CONVECTION cooling but
can these tubes be safely pushed THAT hard
with air blowing over them. The amp has
performed flawlessly for two long, hot
sweaty gigs and one rehearsal, so maybe
it'll be OK. Your comments please....

(Oh, one other thing, when I tried to reduce
the cathode current, the pot bottomed out
at 60ma! Apparently, this is no mistake.
Could this be one of the ingredients in
Reinhold Bogner's "secret sauce"? This
amp IS the sweetest thing I've heard in 27
years of playing.)

Thanks,

Dave Charneski

5/25/1998 8:16 PM
Charles	It got moved to GENERAL ( I lost it too )

5/26/1998 8:48 PM
Dave Charneski	Charles, Thanks, I'll check there now. Dave

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