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Re: [Amps] Source for plate xfrmer

Subject: Re: [Amps] Source for plate xfrmer
From: Ian White GM3SEK <>
Reply-to: Ian White GM3SEK <>
Date: Tue, 14 Feb 2012 11:38:08 +0000
List-post: <">>
Rob Atkinson wrote:
>In your long description you said nothing about the filter caps in use. 
>Please describe them.  Ideally I would want one or more oil caps giving 
>around 50 uF with 6 KVWDC

Good regulation requires two things: low transformer winding resistances 
*and* sufficient capacitance. If the winding resistances are much too 
high (which seems to be the case with Steve's transformer) then even 
large amounts of capacitance can only have a marginal effect.

This has always been apparent in the old paper charts, and software like 
PSU Designer makes it even clearer.


73 from Ian GM3SEK
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