Obtained from a 1969 documentation, this circuit can operate at frequencies up to 500 Hz, counting up to 999. The circuit makes use of neon lamps of the time.
Found in an American publication in 1967, this circuit generates pulses for the triggering of a LASER of...
This circuit was found in a Motorola documentation from the 70s. The components are from the time,...
This amplifier with the AC187 and AC188 pair and the CA3130 integrated circuit was found in an...