This 4-channel mixer amplifier was found in an American publication from 1947. The circuit uses counterphase output tubes and a transformer power source.
To use the instrument for AC measurement, the tips are A and B. For CC use tips A or B for...
We found this conventional version of a single-transistor oscillator in the January 1996 issue of...
This power supply was found in the December 1993 issue of Electronics Now magazine. Power...