Found in a 1968 Motorola documentation, this circuit operates at 1 kHz and can deliver 20 V from 12 V. Transistors support modern equivalents.
This low-frequency relay oscillator was obtained from an article in Electronics Now magazine in...
We found this circuit in a European publication of the 1980s. The transistor could be the BC549. The...
This low-frequency circuit for alternating signals is from an early American 1980s documentation. The...