It seems that Mr G and myself are trodding the same path here! Its
interesting that you've gone for a lower mA than me, Ive worked on the
principle that there's 500V runnning around, and a total output of 26W
(max for EL34's I think) giving a max current of 52mA. Working on the
70% rule thats 36mA = 360mV. Anyway, I too have got some of those
mullard ECF82's but from a different seller on epay, but again
claiming to be french origin. Ive also dropped some svet EL34's in
which have made a big leap from those valve art ones. Let me know
what your plans are tweaking this little babe.