>on4kj wrote:
>>" KAPP's diagram "
>>Pencil and Paper , and a good revision of the theory.... thats all you need.
>>We are Radio Amateurs, aren't we .
>
>To predict power supply performance *accurately* with only theory,
>pencil and paper needs a lot of very clever math.
*** Approximation formulae are given in:
http://www.somis.org/D.amplifiers.2.html
The math is multification and division. The needed equipment is one
clip-lead and one ohm-meter.
>The amateur way *is*
>to use a computer program :-)
>
>>Have fun.
>
>Getting it right is much more fun than getting it wrong... especially
>where heavy iron and high voltages are involved.
>
>
>--
>73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB)
> Editor, 'The VHF/UHF DX Book'
>http://www.ifwtech.co.uk/g3sek
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