9th Jul 2005, 9:17 pm
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#3
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Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
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Re: Armstrong 625 Receiver
Some info here if it helps. No reference to a 3 pole switch, but there is a thermal delay circuit.
http://www.st-and.demon.co.uk/Audio/600/600faq.html
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