N
N_Cook
- Jan 1, 1970
- 0
A birthday present of a new set of valves in a 2009 PV classic 30 and after
a few weeks of use , copious magic smoke and then nothing.
V7 has a near to short varies [cold] 3 to 6 ohms or so cathode to G3, p2 to
p9 of EL84 mechanical failure inside, burning out the HT1 to HT2 dropper
R58, 400R. Anything that could externally precipitate such failure to check,
before a new valve/s ?
a few weeks of use , copious magic smoke and then nothing.
V7 has a near to short varies [cold] 3 to 6 ohms or so cathode to G3, p2 to
p9 of EL84 mechanical failure inside, burning out the HT1 to HT2 dropper
R58, 400R. Anything that could externally precipitate such failure to check,
before a new valve/s ?