Push-Pull Class B Transistor Amplifier (CB927E)

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Published: Tuesday, 09 August 2016 00:00

Written by Newton C. Braga

This circuit has more historical value than practical, unless the reader find all the components in the output stage of an old cassette recorder 70 or a radio at the time. The circuit was obtained in an English magazine (1975) is an amplifier that provides something between 1 and 2 W with good audio power. This circuit is part of a receiver, hence little key AM / CW-SSB that It can be eliminated. The reader can find the old components of this circuit on the time devices scrap and thus remove them carefully to mount a new board and use as a booster amplifier for MP3 and other modern applications. Note that the transistors used at the time are still germanium, the very popular AC series at the time. Use a power source because consumption is somewhat high for battery.