Circuit experiment: Colpitts oscillator

To continue debugging my problems with CC1, I needed a signal source that I could feed into the transciever. Jason/NT7S sketched out a simple crystal based Colpitts oscillator circuit for me to try.

Schematic of a Colpitts oscillator

Fortunately I was able to find everything I needed in my parts bin to breadboard the circuit. I used a 7.030 MHz crystal and a 10 pF capacitor at the output.

Colpitts oscillator laid out on a breadboard
Colpitts oscillator laid out on a breadboard

Will give it another examination tomorrow to make sure I have all the right components and that everything is laid out properly on the breadboard, then give it some power and see if I get anything out of it.


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One Reply to “Circuit experiment: Colpitts oscillator”

  1. Whoops, I labeled the source and drain backwards on the schematic. No wonder it wasn’t doing anything.

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