Wrong, at least if you’re me. The oscillator is an analogue circuit driving the transistor in its linear mode, and with a near 50 % duty cycle. In other words, the transistor spends roughly half ...

The Mostronome is a 1975 electronic metronome that reimagined musical timing with its whistle-like tone. This vintage circuit ...

One of the first big improvements of this build style is the shift from the originally used spark gap commutator to that of a direct AC drive via a MOSFET oscillator. This improves the primary ...