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 circuit converts signals from the 350 kHz to 500 kHz longwave (VLF) band to the 4.35 to 4.6...
This Siliconix circuit was found in a 1980s documentation. The coil consists of 18 turns of 22...
This circuit was found in a 1970's Radio Electronics. The pulse transformer has a 1: 1 turn ratio....