Trevor Wilson wrote:


** That sort of self opinionated drivel is not helpful at all.

It is very easy to find EL84s that glow red, give low power or only
last a short while in a PV Classic 30 - things the original Peavey
brand ones did not.

Personally I would not take the slightest notice of any tech that
made remarks like that cos it is a sure sign of a bull**** artist.


Unless they meant that originals that are in the amp right now are
crap and any brand of new ones would be an improvement. (?)


**That is precisely what the tech suggested. He was clearly unhappy with
the Chinese valves chosen by Peavey in this model.


** The PV Classic30 dates from 1994, but new examples are still on sale.
If the EL84s in TW's PV are original and Chinese, they a likely very old. PV have been using Russian made EL84s since about 2008, supplied to them by Sovtek.

Letting air in ( or the vacuum out ) is a sign of overheating - or a drink spill. Sometimes you can find a tiny crack in the glass between the pins.

Truth is, the tech at Musiclink gave TW no useful advice at all, cos he had none to give. But TW considers he got a useful answer, cos it let him do whatever he felt like.


..... Phil