Upon pressing the switch, the circuit generates a pulse whose duration depends on C. The transistors can be BC548 and the power can be between 1 and 6 V. The circuit is from a 1975 publication.
This inverter can source voltages up to 400 V from a 3 to 6 V supply, but output current is very...
The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9...
This multivibrator has its frequency controlled by a crystal. Other frequencies can be generated by...