Whats the value of the choke?? Old handbooks have all the info on thise
selections that you will ever need.
Yes a variac is just an added stage of regulation to contend with unless
it is a monster.
Carl
KM1H
----- Original Message -----
From: "Mike Lucas" <w5chr@bellsouth.net>
To: <amps@contesting.com>
Sent: Monday, March 16, 2009 7:59 PM
Subject: [Amps] P/S upgrade
>I have an OLD homebrew supply for a single 4-1000,
> that needs some re-work before using it with an amp.Transformer weighs
> 103lbs, with a 28 lb choke input in the neg lead. Rectifiers are 3 amp
> individual diodes in a bridge configuration.
> Questions are: is 16Mfd enough at 5 Kv and 540mils, if not, how much?
> And
> why will a variac cause poor regulation?
>
> 73, Mike W5CHR
> Memphis
>
>
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