This circuit was found in an American publication in 1966. The circuit uses a general-purpose FET that admits an equivalent. The instrument is a 250 uA full-scale microammeter.
The R-S flip-flop shown here uses two NOR gates and is set and reset by positive pulses applied to...
This circuit is nothing more than a voltage quadruplicator that can generate close to 1 000 V from the...
Of course, the range of this transmitter found in a 1992 documentation is not exactly 4 km, as it...