Found in 1980s Radio Electronics, this circuit triggers the ignition of a rocket after the countdown is completed. The countdown is monitored by the sequential lighting of LEDs
This sinusoidal oscillator was found in Radio Electronics in 1989. It uses a 741, but other...
This is the circuit of a commercial flash from the 60’s. The circuit was published by the march...
This circuit is suggested by Motorola in its 1990 Linear Databook. The integrated circuit is no...