Peak sensor with tunnel diode (CB21514E)

This circuit was found in old General Electric documentation. The circuit makes use of a unijunction programmable transistor.

| Clique na imagem para ampliar |

Two Transistor Super heterodyne (CB20574E)
This circuit was found in an English publication from 1967. The circuit is for listening on a...
Digital Multimeter Thermometer (CB17031E)
This circuit allows you to use a digital multimeter as a thermometer. The sensor is mounted in a...
Capacitance meter 555 (CB18927E)
This configuration, which appears in other articles on this website, was found in a European...