This circuit keeps the neon lamp on for a moment when it receives a pulse. The turn on time depends on C. The transistor is of the old type, from the 60's, when the circuit was published.
This circuit will trigger a buzzer with an oscillator if the ignition key is removed with the...
Found in a 1980s documentation, this amplifier features high common mode rejection. The operating...
In this circuit of a 1970s publication, data from the coil to oscillate at the desired frequency...