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Old 11th February 2016, 05:55 PM
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Phil Y Phil Y is offline
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Join Date: Jul 2006
Location: Bristol, UK
Posts: 659
Default Re: Kat 6550 build (yes really!)

I am not familiar with that amp but are you sure you are not just measuring the resistance of the transformer heater winding ?
They are low voltage and high current, so have only a small number of turns of thick wire.

Phil.
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