After a few modernizations and tweaks, the result is an 8-transistor stereo amplifier that’s aesthetically ... was the original one, giving that old, comfortable feeling of reading quality ...

This contraption was the very first semiconductor amplifier ... can alter the flow of a much bigger one, effectively amplifying it. Of course, a transistor in a telephone or in a radio has ...

Probably one of the most celebrated amplifiers ever ... solved the thermal instability issues that plagued early transistor amplifier designs. This circuit layout produced low distortion ...