This circuit was obtained in an American documentation from the 90's. The circuit can be implemented with some equivalent components, such as transistors and TTL logic circuits.
We found this complementary simetry configuration in a1980s documentation. Transistors, which are...
This circuit was obtained from the May 1971 issue of Radio Electronics magazine and is intended for...
This circuit acts as a VU-meter when connected at the output of any audio amplifier, triggering a...