Hey guys,

The wall voltage checked at 248volts peak from that socket and the tech I used allowed for that and said he has biased it allowing for the extra wall voltage in Australia.

The head has shielding under the chassis and is in the cabinet when this was recorded. I have some stick on copper shielding...... will this assist in reducing the problem if I ad this to the base etc??

All power tubes are matched and were biased on replacement and the sound: the hiss: is the one I'm trying to get rid of.

The PPMIV was installed at the factory and was like that from the start. Which wires is to go to which tube from the PPMIV??

The tubes all passed the "ping" test ie no rattle when you give them a tap when in operation.
I've tried the amp in other areas with out lighting etc, fridges off....

Hi

Talked to Ross.

I think it was 2 68K resistors, not caps, that he replaced.

It was before he changed the valve, I think, so it could have been the 12AX7 all along?

Thanks!

nik