[Amps] Transformer 50/60hz

Carl km1h at jeremy.mv.com
Fri Apr 23 15:13:33 PDT 2010


The transformer will run a little bit warmer so dont push the amp to the 
last watt. The blower will also turn slower so find a happy balance with 
your output power and air flow.

Dont waste your money on a new transformer, if you ever need to just get the 
original rewound locally.

Carl
KM1H


----- Original Message ----- 
From: "John E. Cleeve" <g3jvc at jcleeve.idps.co.uk>
To: <amps at contesting.com>
Sent: Friday, April 23, 2010 3:18 PM
Subject: [Amps] Transformer 50/60hz


> Gentlemen,
>
>
>
>             I would appreciate some advice from the transformer "boffins"
> out there. I am in process of refurbishing an Alpha 76PA, which came over
> from the USA. I noted, in a recent posting, a link which showed the new 
> Dahl
> transformer availability, and that a 50hz 230v primary transformer is
> available for the 76PA. My questions  are these, what are likely to be the
> noticeable effects on the performance of the 76PA amplifier, with the
> present 60hz transformer being run on 50hz and what, if any, will be the
> likely long term effects on a transformer designed to run on 60hz when run
> on 50hz. Should I "break the bank" and have the available 50hz version
> shipped across the pond?
>
>
>
> 73, sincerely, John. G3JVC
>
>
>
>
>
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