Temperature control 555 (CB9469E)

This circuit was found in Signetics documentation from the 90's. The circuit performance curve is shown next to the diagram. The sensor is an NTC.

| Clique na imagem para ampliar |

High Voltage Power Supply (CB1223E)
This small inverter came out in an Argentine magazine from the 1970s. It can also be assembled with...
Analog thermometer (CB9488E)
We found this circuit in Radio Electronics from the 90s. The components are current. The sensor is a...
Unit gain low pass filter (CB7574E)
This second-order filter was found in old American documentation and can be applied to other...