Pre-stabilization circuit (CB8802E)

Found in Philips' 1968 documentation, this circuit serves as a 6.3 V reference for high stability.

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Twin T Oscillator (CB3965E)
This is one of many twin-T oscillator configurations that can be found in this section and on this...
Photo Electric Relay (CB9889E)
We found this circuit in an English documentation from 1979. The circuit can be implemented with a...
Low distortion oscillator (CB9200E)
This Wien bridge oscillator was found in a 90's EDN. The components are from that time and the...