Balance indicator (CB7012E)

This balance indicator for stereo amplifiers was found in an 80's Elektor. The components used are common. Zeners are 1.8 V or close to that value.

| Clique na imagem para ampliar |

Magnetic Transducer Amplifier (CB19013E)
This circuit was found in documentation from the 1980s. The circuit can be implemented with other...
Pulse duration modulator (CB7932E)
This circuit was found in an Electronic Design from 1964. The components are from that time and...
Using Two Feedback Networks (CB19708E)
Taking Raytheon's 3900 integrated circuits as an example, uncommon today, this circuit can be used...