This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time and are not given information about the driver transformer. Note the high supply voltage.
Found in an Electronic Design from the 90s, this circuit does not need sinks for its components. The...
The figure shows a way to apply gain control to the LM3600 OTA. The circuit is from a Radio...
This circuit was found in a 1968’s General Electric documentation. The circuit has a control range of...