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 traditional symmetric power supply configuration with the 7812 and 7912 regulators was found...
Thes astable was found in old publication of 1968. The circuit uses general purpose germanium...
This circuit uses a common diode as sensor. The output goes from 0 to 10 V with the temperature change in...