Well
i bet there will be quite a battle
around this amp. Klein & Hummel
used the same tubes (or EL5000, which must be
the higher grade EL500?) for their amplified
speakers, and those had to be flat from 20Hz
to 20kHz, due to german radio monitoring
specifications (remember that germans were in
a sense the inventors of HIFI FM radio). Maybe
i can find a schematics somewhere. So
i would bet that this amp should sound good,
if the caps and so are still ok. Anyway,
it will probably go for quite a high price
(1000?) cause here in Europe this kind of gear
is very sought after (ouch, what a terrible
english).

JY.