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From: John Woodgate
Subject: Re: welding a transformer core
Date: Tue, 17 Dec 2002 07:17:39 +0000
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Tue, 17 Dec 2002 13:56:07 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Henry Kolesnik
wrote (in )
about 'welding a transformer core', on Mon, 16 Dec 2002:
>To make an already long story short the welded
>transformers were passing a spike over the floated batteries causing the PLL
>to momentarily lose lock and cause a switch.
I can't believe that was due to the welding itself. It was almost
certainly due to some other construction feature of the transformers.
The best guess would be that the welded transformers didn't have a
Faraday screen between primary and secondary, whereas the bolted ones
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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