Valves............

Hi,

I've just been re setting the bias on the vales on my Dynavox valve amp.

I make no apology for saying that Pete (Zanash)was kind enough to show me how to do this (twice! ).

The figure he suggested was 320mAs.

The figures suggested in technical data he was able to give me suggests anything from 200 to 400.

Any advances?

I'm not letting on what figures I found the valves set at; suffice to say setting at 320 mA made a BIG difference!

Cheers Pete,





David

 

higher ....a richer warmer sound valves last less long

lower ....thinner cooler sound valves last longer

thats the normal rational.........

but this may also depend somewhat on the makes ....

imo the best sounding [el34] that I've used

gt audio
electro harmonix
jj

ok valves

sevetlanas
sovtecs

poor
chineses valves

altering the biasing on the poorer ones made a bigger difference than on the best sounding ones.

 

I Absolutely agree.