The original application of this 1967 Ferranti circuit can be changed so that it functions as a pass sensor shield for gears and other moving objects.
This voltage-controlled oscillator or VCO was found in a Radio Electronics magazine from July...
This circuit has a duty cycle of 50%. We found it in old English documentation. The center...
This control allows to start or stop a motor up to 3 or 4 A with a low intensity signal. The...