I am working on a beat frequency oscillator metal detector. The rest of the project is working properly. The mixer, filter, daq modules, and such.
I can't manage to get this oscillator working. It is a simple oscillator. The only difference on the other one to produce the frequency is I wind my own coil. Neither of them oscillate at all. Any ideas or something to try to change. Schematic of one oscillator attached.
Sorry, 220uH is the inductor if not visible.
I can't manage to get this oscillator working. It is a simple oscillator. The only difference on the other one to produce the frequency is I wind my own coil. Neither of them oscillate at all. Any ideas or something to try to change. Schematic of one oscillator attached.
Sorry, 220uH is the inductor if not visible.