This is a battery powered 3W power amplifier using germanium transistors. The circuit is from an English documentation from 1967. The transistors are from the time.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We found...
In the figure we have the way to obtain a voltage indicator for a 3-terminal voltage regulator. The...
This simple 80's CMOS game was found in an English magazine of the time. It appears elsewhere on this...