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.
We found this circuit in an old European documentation, but the components used are still all...
With the circuit in figure 6 it is possible to generate pulses whose duration is given by R1, and...
This amplifier stage with push-pull output uses germanium transistors found in Japanese...