This circuit was found in a 1967 Japanese documentation. It consists of a touch control system with two transistors from the time. The circuit uses a power source and sensitive relays.
This simple practical circuit can be adapted on a motorcycle to indicate the activation of the...
This circuit fires by burning the fuse when the input voltage exceeds the value referenced by the zener....
This circuit found in Electronics Now magazine emulates a negative resistance -1k resistor. The...