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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