[Amps] 3-500z

[jsb@digistar.com]

On Wed, 26 Oct 2005, R. Measures wrote:

> > umph - well if the typical off-the-shelf AL-80B sits idle at 2900v to
> > the plate (I do not know if this is its normal operating voltage),
> > 1600w input would seem to be a lot of plate current for 1 tube.
>
> The AL-80 instruction manual says 500mA + is okay.  Some people tell the
> truth and some don't.

The photos i've seen of AL-80Bs have Amperex tubes - I thought Amperex
built their tubes using graphite plates that get "sick" with that kind of
use.

Something about graphite poisoning or deformation of the anode surface.


--
73 Jason N1SU
http://n1su.us/