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.
Using this circuit the lamps glow in sequence in a speed given by the capacitors. The SCRs present a...
This circuit was found in a 1968’s publication and uses germanium transistors. Equivalents can be...
The circuit presented uses an integrated circuit Sanyo, not very common in our day. This amplifier provides...