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

[DavidF]

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

 

[zanash]

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.

 

[Jimbo]

本公司是一家集Internet网站建设,北京网页设计公司信息收集传播,宣传企业文化,北京网页设计软件开发为一体的信息技术开发公司。 本公司致力于政府、企业、学校的系列解决方案。并承接各种软件、网站项目的制作和维护。 从98年发展至今,网站建设公司本公司已经发展成一个拥有高学历、高素质的30余人的开发团队。网站设计公司本团队人员来自国内各大高校,网页建设公司平均开发经验1年以上。我们经过几年的运作已经积累了一定的经验。从项目的确立,到项目的执行都有严格的项目标准来规范。

I Absolutely agree.