[AMPS] ssrs

[Steve Thompson]

>-----Original Message-----
>From: Larry Molitor <w7iuv@nis4u.com>
>To: RMcGraw@BLomand.Net <RMcGraw@BLomand.Net>
>Cc: amps@contesting.com <amps@contesting.com>
>Date: 27 June 2000 04:40
>Subject: Re: [AMPS] ssr's in qro amps
>snip
>
>>
>
>>It is surprising to me that people can preach "Safety" and then berate me
>>for going the extra mile to make my station as safe as I know how.
>
>It seems to me that that it could be very cheap life insurance.
>
>For interest, I modelled some start up conditions on spice. Based on a
>transformer designed to give 2.5kV .8A dc CCS (effective secondary Rs 40
>ohms, 30uF smoothing), 40 ohms in the 220V feed for just 3 cycles (50Hz)
>limits the peak current in the diodes/smoothing cap to under 5A. The
>repetitive peak current under settled conditions at 650mA dc is 3.3A.
>
>Steve
>


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