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.

Optical Shield TTL – I (CB1323E)
This circuit has been found in an old documentation, but can be used as input shield for current...
AD161 and AD162 Amplifier (CB3977E)
This amplifier with antique germanium transistors is from a 1968 publication. The circuit provides...
3W Power Wireless 3 W IQ Compatible (COM058E)
August 2016 - It can be obtained from Mouser Electronics new wireless 3W transmitters from RTD to...