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.
Found in Radio Electronics from the 90s, this circuit is based on the 555 directly feeding a small...
This 1 MHz oscillator was found in an Electronics World of 1969. The circuit uses a...
This circuit was found in a 1966 General Electric documentation. The circuit makes use of PUTs...