This amplifier, whose mounting on a printed circuit board was described in Radio Electronics of October 1960, has 35 W of power. The power supply uses a transformer and a set of 5 tubes.
We found this circuit in the 1994 Linear Applications Handbook by National Semiconductor. The...
This circuit has more historical value than practical, unless the reader find all the components...
This circuit was found in documentation from the 1970s. It eliminates contact bouncing, providing...