This is one of the first radios with an integrated circuit. The circuit is from a Radio Electronics from November 1969. The circuit is powered by a 9 V battery.
Found in American documentation from the 90s, this configuration detects the direction of rotation...
This amplifier with a 9 MHz passband and 10 voltage gain with two transistors was found in...
A Schmitt trigger inverter can be obtained from each gate of the 4093 with the connection shown in the...