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.
We found this circuit in an old publication. The transformer has a 9 or 12 V secondary, and the...
Foto-Darlington for applications such as light sensor. In normal applications only the collector and...
This circuit was found in a 1973 publication. The operational ones can be exchanged for...