Locked relay shield (CB8837E)

This interesting configuration was found in a 1965s Electronic Design. It makes use of components of the time.

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Balanced Mixer as Product Detector (CB4235E)
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Voltage triplicator (CB8751E)
This simple low power triplicator was found in 90’s American documentation. The diodes can be...
Inverting CMOS Amplifier (CB25577E)
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