The integrated circuit used in this amplifier is not very common today. This amplifier was found in the 1977 National Semiconductor Audio Handbook. The power source must be at least 500 mA.
This is another of the Star Trek red alert circuit that you can find on this site. We took this...
This step was found in the 1960 Mullard transistor reference manual. The transistor can be a BC558...
We found this circuit in the November 1975 issue of Radio Electronics magazine. It uses a digital...