Critical components of this project are the Geiger tube and the 300V battery. The battery can be replaced by a small inverter, as the circuit current is few microamps. The circuit is from an old documentation. Transistors are general purpose types.
The purpose of this circuit is to match two operational amplifiers that operate with different...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...
This circuit amplifies the signals of an operational amplifier with output values that depend on...