[Amps] MLA-2500 Tube Conversion

[Carl]

The only good test for that is to hook up and measure with a load and a True 
RMS meter.

There are still many new production 115/230V transformers being sold altho 
they test fine on 120/240 + circuits.
Somewhere along the line the labels werent changed.

No my yob

Carl
----- Original Message ----- 
From: "Nidhog" <robrk at nidhog.net>
To: "Jay Sturtevant" <k2ztdx at gmail.com>
Cc: "Amplifier Reflector" <Amps at contesting.com>
Sent: Sunday, October 10, 2021 2:06 PM
Subject: Re: [Amps] MLA-2500 Tube Conversion


> 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
>
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