[Amps] MLA-2500 Tube Conversion

[Nidhog]

Even if you have the correct output filament transformer, check the primary.
I have a few from the olden days of 115 line voltage.

4CX250’s want 6.000. 
My 30L1 wants 115/230, not today’s 120/240 +.
There are Eimac papers that suggest running a percent or two below listed number and cranking it up  in a few years when power falls off.
Do a search.

Sent from my iPad

> On Oct 10, 2021, at 12:58, Jay Sturtevant <k2ztdx at gmail.com> wrote:
> 
> You might want to check with an expert on this forum to make sure your
> filament supply is correct. I run a pair of 3cx800A7s and the
> designer/builder stressed correct filament voltage,  if I remember
> correctly.
> 
> Jay, K2ZT