This is a commercial circuit from the year 1958. Transistors are germanium types and transformers and coils are hard to fild today. The circuit is destinated to the reception of medium wave stations.
This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output...
This amplifier was obtained from an Electronics Now from the 90s. The circuit has a dual 26V power...
In this circuit the output voltage depends on the light that falls on the LDR, increasing when the...