Radiation thermometer (CB7242E)

Found in a 1968 Mullard manual, this circuit measures temperature by infrared radiation. The sensor is of the type that is difficult to obtain today.

| Clique na imagem para ampliar |

Low consumption metronome (CB8232E)
Suggested by a 90s Electronic Design, this circuit drains only 0.25 mA from its source. Listening...
Crystal Oscillator (CB6522E)
The crystal frequency of this circuit found in an American documentation is limited only by the...
Low Side Current Sensor (CB20383E)
This current sensor employs the Texas Instruments LMV358A low voltage operational amplifier. This...