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Old 10th Apr 2019, 7:30 pm   #10
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,007
Default Re: Making transformer bobbins?

I'm following this thread with interest - for a future project i need a modulation-transformer to match a push-pull pair of OC35/NKT404 transistors to a single-ended RF stage. I'm thinking of using copperclad FR4 with short-circuit-stopping slits for the bobbins, if only because I can earth the copper to minimise the chance of a few tens of Watts of RF coupling-back into the audio power-stage.
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