Found in a 1964 Electronic Design, this circuit generates 1 A pulses with durations from 100 us to 10 ms. The circuit makes use of transistors of the time.
This circuit simulates an inductor. Or operational amplifier of old type, but a configuration is...
We found this circuit in a 1967 Electronic Design. The circuit uses contemporary transistors that...
To control relays safely with double insulation, we suggest the circuit in the figure. The optical...