This is known as a Colpitts oscillator and I soldered this up last night after dinner. To my surprise it worked on the first try! With the component values I used it oscillates between 0.7-2.8V at a frequency of 1.28 MHz.
This is known as a Colpitts oscillator and I soldered this up last night after dinner. To my surprise it worked on the first try! With the component values I used it oscillates between 0.7-2.8V at a frequency of 1.28 MHz.
I didn’t study analog design too closely in school, but I understand that the superheterodyne technique for frequency mixing can be used to do some rather interesting things, such as taking the difference between two high frequency signals. Some things are easier to do at high frequency and then brought down to audible frequency, I imagine.
Alternatively, a synth for dogs haha