Based on the TCA6600 or TCA5500 this circuit was found in a 90’s European documentation. The integrated circuit used is not very common today.
The circuit presented is from the National Semiconductor's Linear Applications Handbook of 1994. We...
This is one of the many versions we have of a 12 V power supply with the 7812. We found it in the...
This fader or fader was found in a 90s Popular Electronics. The circuit uses transistors that are...