This amplifier stage without an output transformer was found in Radio Electronics magazine from October 1963. The supply is 12 V, and the output is 8 or 16 ohms.
This full-wave power control was found in an old American publication. After adaptations and...
This circuit was found in the May 1989 issue of Radio Electronics magazine. The components can be...
The circuit is from old documentation from the 70s, but the components are still common, as the...