The purpose of this circuit is only to increase the input resistance of a multimeter, since there is no voltage gain. The batteries are 9 V and operational equivalents can be used.
This circuit was found in a 1966 publication using a microwave transistor of the time. The circuit...
This circuit consists of a decoder for remote control that allows the activation of 10 channels based...
The purpose of this circuit is to control magnetic door locks activated by the power grid. The...