This circuit is from a Radio Electronics from March 1960. The generator works with a 22.5 V battery, generating good intensity signals determined by the LC circuit.
This CMOS circuit with the 4011 can be used in an infrared remote control. The circuit can be...
This circuit was suggested by Popular Elecronics from the 90's. The circuit has high input...
This circuit has a high input impedance and uses two transistors quite common in the market. Its...