In fact, this 1967 Electronic Design circuit generates two symmetrical ramps whose frequency depends on the values of the components used. Modern equivalent transistors can be used.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
Using a 100 uH inductor for L1, this circuit will oscillate around 1 MHz. The frequency will be...
This low current solenoid driver was found in an ancient American documentation. The solenoid must be...