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 is a battery powered 3W power amplifier using germanium transistors. The circuit is from an...
The capacitors of this 80's circuit must be ceramic and the transistor can be any PNP that...
The circuit shown by the figure produces a sine signal of about 1 kHz. The components in the...