This is a low-gain amplifier to operate as a booster. We found it in an American documentation from 1947. The circuit uses a coupling transformer at the input.
June 2017 - Mouser Electronics announced the availability of new low-power Bluetooth modules from...
Found in a Radio Electronics we have in the figure a circuit to disconnect an SCR with direct...
This circuit was obtained from an English magazine from 1976. What this circuit does is start from...