Thermally Controlled NiCad Charger (CB6054E)

The circuit is from 1980s Linear Technology documentation. The components are of the time and circuit behavior curve is given along the diagram.

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Battery Rejuvenator (CB16504E)
Ordinary batteries cannot be recharged, but they can go through a process of "rejuvenation" that...
Unijunction Pulse and Signal Generator (CB13329E)
We found this basic circuit of a relaxation oscillator with unijunction transistor in a 1976...
Water Pump Automatic Control (CB18033E)
This circuit, from a 2006 documentation, automatically controls the activation of a water pump, and...