With this circuit it is possible to add a conductance scale to a common multimeter. The circuit was found in the magazine Electronics Now of February 1997.
This circuit can be used in PLL, frequency synthesizer in FM and VHF receivers, reducing a...
We found this circuit in an old documentation. Transistor can be BC548 and relay according to...
This is a typical 3 ½ digit TTL counter. We found it in the September 1973 issue of Radio...