Advanced Member level 5
Hi, I would like to know, if I increase the gain of this RF detector by the P1 (and possibly alter R2) can this circuit be used as an oscillator?
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I thought I could make this oscillate easily to double as a signal generator too. I thought so too about the meter. Ok so the answer is no, in this configuration it won't oscillate?A Colpitts oscillator should not super-regenerate, it should just oscillate, they are slightly different processes.
Beware that if you add positive feedback to make it oscillate the meter will almost certainly be damaged. You need to add a series resistor. As a field strength meter it will only see a few mV of signal but as an oscillator it could be more that the battery voltage.