We found this circuit for video games in a Radio Electronics magazine from August 1977. The transistor can be any common RF type that reaches the desired signal frequency.
We found this decoder in a 1966 General Electric publication. It makes use of general purpose...
Another alternate action switch that uses a NAND Schmitt Gate [4093 IC] is shown here. The...
This filter operates in the “opposite” way to the previous one (CIR8814), cutting all signals...