1,5V Thermometer (CB21280E)

We found this circuit in old documentation from National Semiconductor. The circuit makes use of a sensor from the time.

Delayed switch circuit (CB24443E)
This circuit switches on an external load after a certain interval given by the capacitor. The...
Light Sensitive CMOS Astable 4011 (CB907E)
This circuit uses a photoransistor to control the frequency for this oscillator. Power supply...
Two Transistor NOR Gate (CB19887E)
This NOR or NO-OR function circuit can be implemented with two or more general purpose...