This circuit was found in General Electric's 1965 documentation. It appears elsewhere on the site. The SCR and the diodes must be in accordance with the motor current.
When the base of the general purpose transistor is grounded the circuit produces a signal that is given...
This circuit, found in US documentation, can measure the power of transmitters up to 10 W, given...
This circuit was found in an American documentation from 1968. The circuit generates ladder-shaped...