Diode test (CB20735E)

This simple diode test appears at other points in this section. Or circuit can be adapted to use LEDs instead of ordinary lamps.

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Controlling a blinking LED with LDR (CB24662E)
The figure shows how to control the blinking of a 5 V blinking LED with an LDR. The LED only...
Band pass amplifier (CB7447E)
Suggested by Maxim in documentation from the 90s, this circuit has its response curve given next to...
Temperature Alarm (CB6111E)
This circuit is from a 1965 General Electric publication. It uses a thermistor to fire a reed...