Colpitts Oscillator

A project log for PolyMorph Receiver

A minimalist direct conversion radio receiver. 4 general purpose transistors and a Polyakov 2 diode mixer.

morphmorph 01/09/2019 at 13:580 Comments

I added some pictures of just the colpitts oscillator of the circuit. In the picture the BJT is 2n3904 and it's collector resistor is 470 ohm, base to voltage supply rail is 150k ohm. 100 ohm and 100k ohm will work respectively. The supply voltage is 5v.