Circa '46 Emerson portable tube radio

[dieseljeep]

Originally Posted by Electronic M

Intriguing design that set has.

I have three models like that. Two have the 50B5, 35W4 combination and one has the 117N7, rectifier, output combination.
If you notice, it uses a filter choke in the power supply. It must be, because of the heavier current demand of the tube filament circuit. Also note, the IF frequency is 262 KC. The audio output transformer is also dual primary, to match the plate load impedance of the two different output tubes.
BTW, I never saw the model using the octal output and rectifier tubes. It must've been a real short production run.