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 RF signal meter has a switch position that allows calibration and comparison of low intensity...
This configuration presents a negative resistance caracteristic such as the one found in...
This circuit is inserted in series with an incandescent lamp causing it to flash at a frequency...