Yep, overkill - but 32 of 'em fit on a beautiful board I had available. Plus
there's room for 32 more as the project grows!.
-----Original Message-----
From: Rich Measures <measures@vc.net>
To: Bill Coleman <n2bc@stny.rr.com>; rakefet@rakefet.com
<rakefet@rakefet.com>; amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: Saturday, July 03, 1999 5:44 PM
Subject: Re: [AMPS] PS diode equalizing
>
>
>>
>>Hi Vic, from 1996 ARRL Handbook, DIODES IN SERIES, page 11.9:
>>
>>"There used to be a general recommendation to place a resistor across each
>>diode in the string to equalize PIV drops. With modern diodes, this
practice
>>is no longer necessary." It goes on to explain why then concludes with:
>>"In fact, shunt resistors can actually create problems..." and why again.
>>
>>The 1N5408 qualifies. I use 16 of these in each leg of a fullwave putting
>>out 4KV - no probs.
>>
>With 16 diodes per leg and 4kV out, each diode c. 1/4 of its rated piv. .
> I would be happy with a bit less safety factor, Bill
>
>
>Rich...
>
>R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>
>
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