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 oscillator shown in the figure can serve as a base for circuits of transceivers and...
This CMOS oscillator circuit generates signals up to a few megahertz, depending on the capacitor value....
This circuit is from American documentation from the 1980s. The transistors are general purpose...