Overload protector (CB8362E)

This circuit was found in a 1967 RCA publication. The circuit uses components from that time, and can be used with loads up to 240 W.

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Instrumentation Amplifier (CB18979E)
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Stepper Motor Control UCN5804 (CB15680E)
Using only a ULN5804 integrated circuit, stepper motors up to 500 mA can be controlled from TTL...
Constant Current Source (CB13073E)
Constant current sources are used in applications such as battery chargers, electrolytic tanks, etc....