Not sure yet.
The reasoning is this:
Say a BD139 transistor has an operating point of 12V 70mA. See previous posts.
Another device with 2 times voltage and 2 times less current (ie same power) (4 times higher output impedance) (an electron tube?) might have an operating point at 24V 35mA.
4 times output impedance requires 4 times transformer primary inductance for same bass response.
This requires double number of turns.
Magnetization is the same since current is half. No DC saturation with the same properly designed trarformer.
So is it as easy to make an output transformer for a one transistor amplifier to a one electron tube amplifier?
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