Thermometer (CB19856E)

The sensors and integrated circuit used in this circuit are uncommon today. However, it is worth the configuration for the purpose of consultation.

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Symmetrical 15 V power supply (CB8498E)
Found in na 1970 EDN this circuit has a parallel regulation providing a symmetrical output of 15 V....
Common base stage (CB22220E)
This circuit is from an American documentation from the 50's. The transistor is the CK721, and the...
Voltage divider CA3140 (CB24968E)
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