Phase Detector 7400 (CB22427E)

This circuit detects the phase of a signal. As it is a TTL circuit, it must be powered by a voltage of 5 V.

Preamplifier with tone control (CB9517E)
Found in National Semionductor documentation this circuit combines a tone control with an...
Piezoelectric Buffer (CB21152E)
This circuit was found in American documentation from the 90s. It serves as an amplifier for a...
Remote Control Receiver (CB502)
With a coil formed by 7 turns of 26 AWG wire this circuit operates in the 27 MHz range. But you...