FM Receiver Radio Build DIY

This FM transistor receiver is an improved designed from a commonly found circuit. The video includes the schematic and a demonstration. Enjoy!

[stephennelson-smith]

Excellent experiment! If I understand it, your two wires are basically acting as the capacitor in your tuned circuit. I"m interested in making an FM receiver for a fixed frequency, but I guess given capacitor and inductor tolerances, it'd be necessary to tune it manually to get the precise requirement, and then just leave it as it is.

[lop]

Wow that ounds really good for such a simply circuit

[klausbrinck]

Is there a real ground to that, or is ground simply the negative pole of the power-supply ??? Is the headphone´s 2nd cable also connected to the ground ??? Van it be used with a headphone, insted of the amplifier and the speaker ???Thanks for any answer !!!

[hobbyrob]

could it be that there is a mistake in the schematic? (small mistake!) I think the yellow antenna wire is not on the Emitter but on the Collector, and therefore also on the LC circuit, agree?
and: actually such a breadboard is not really suitable but in some cases... high frequency is always a strange thing! but putting that coil further away has nothing to do with interference from the circuit itself. sometimes things just work better than others with HF, you can never really know in advance! make the same thing/schematic twice the same and it works differently, always

[mcinak]

your variable resistor is measured in ohms a capacitor is measured in Pf

[levirizkisaputra]

What is the function of two transistor?

[johngeorgiou]

I never liked those simple radios. I prefer to build superhets with tubes or transistors which have better sound quality.