Featured in the February 1949 Radio Electronics magazine, this benchtop instrument generates multi-range audio signals. The circuit has 6 tubes including the rectifier.
The maximum current of this circuit is 1.5 A. The circuit has the formulas next to the diagram to...
The purpose of this circuit is to ensure that an auxiliary 12 V battery continues to supply power...
We found this circuit in the May 1970 issue of Radio Electronics magazine. The maximum frequency...