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.

50 mA Battery Charger (CB878E)
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...
Reflex receiver (CB20583E)
This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in...
TLVx171 36 V Operational Amplifiers
May 2017 - The new 36V TLVx171 Series of General Purpose Operational Amplifiers from Texas...