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Old 3rd Jun 2020, 11:54 am   #8
Steve G4WCS
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Join Date: Sep 2004
Location: Preston, Lancashire, UK.
Posts: 632
Default Re: 12V 20A PSU Crowbar Cct

the PW marchwood was regarded as a decent design and the article describes the various protection circuits used. Practical wireless June 1983 ( scanned in americanradiohistory)

I have PDF copies but they are too large to upload, sorry
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