This circuit is from the time when cars used contact breakers. This 80's version measures the dwell angle of the contact breaker for dwell adjustment using an era integrated circuit, the LM3917.
This sensitive touch circuit that triggers an oscillator uses only transistors. The circuit is...
This circuit was found in a 1967 EEE. The components are from that time, but the circuit can be...
This circuit of two transistors was found in a Japanese magazine in 1967. The transistors are made...