This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This traditional configuration can provide high voltages for an electric fence, for science...
We found this filter configuration in an old documentation. It is one of many possible ones that...
This circuit measures the conductivity of a saline solution, which is affected by the electrolysis effect....