Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load. The response ranges from 20 to 20 000 Hz. No information is given about the transformer used.
This preamplifier for high impedance microphone is designed to make a good addition to the speaked word...
This circuit is a documentation of the 70's and therefore valid for analog lines. What the circuit...
This is the receiver circuit for the previous transmitter. The circuit has a programming key to...