Water Level Sensor (CB6557E)

This grid-isolated sensor was proposed by General Electric in 1966 documentation. The circuit currently uses common components.

| Clique na imagem para ampliar |

High Impedance 2 W Amplifier (CB6163E)
This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms...
TPS7A90 Low Noise LDO Evaluation Kit - Texas
Mouser Electronics has in stock the Texas Instruments TPS7A90 Low Voltage Dropout (LDO) Linear...
High impedante circuit for sensor (CB20542E)
This circuit for PC and which can also be used with microcontrollers was found in an English...