This circuit was found in a Radio Craft from October 1946. Power supply not shown, and tubes are 1.5V filament types.
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...