Re: Interstage Audio coupling transformer
It's not just about turns ratio it's about inductance.
Intervalve transformers need to have a reactance (inductance and frequency based) that matches the driving stage at the lowest frequency to be passed. It's a bit more complicated due to other factors such as resistance and capacitance but in the main that's it.
You need a high primary inductance hence lots of turns
Cheers
Mike T
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Mike T BVWS member.
www.cossor.co.uk
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