Simple 5V regulator (CB8815E)

This simple 5.6 V regulator circuit was found in a 1966’s Philips. The zener can be changed to obtain other voltages.

JFET Tone Control (CB20011E)
The use of field effect transistors in this circuit improves its performance. This configuration is from a...
Simple Bench 6 V Power Supply (CB20185E)
This is a simple source indicated for powering low voltage projects on the bench. The circuit is...
RS Flip Flop (CB8925E)
This circuit was found in a 1969s American documentation. With modern components, it can be used...