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Superhet receiver

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dudu

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Hi Friends,
I working on a seemingly simple design, a superhet receiver, but i have problems coming up with a design with just 3 transistors and no ICs or OP AMPS. Any ideas or help will be greatly appreciated
 
dudu said:
Hi Friends,
I working on a seemingly simple design, a superhet receiver, but i have problems coming up with a design with just 3 transistors and no ICs or OP AMPS. Any ideas or help will be greatly appreciated

It depends what you want it to feed, only three transistors is pushing it a bit - although you should be able to feed a set of high impedance headphones or a crystal earpiece.

Try like this:

Transistor 1: Mixer/Oscillator.

Transistor 2: IF amplifier.

Transistor 3: Audio amplifier.

You will also need a germanium diode for a rectifier.
 
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