Originally this circuit was created to produce synchronism pulses in TV cameras SSTV (Low scan frequency), however it can be adapted for other purposes. The integrated circuits are common TTL.
This game aims to make you discover which is the combination of activated switches that make the...
The LM109, which is not common today, was manufactured by many semiconductor companies. This...
This adapter circuit for measuring voltages was found in Radio Electronics from April 1966. The...