High Impedance Bridge Amplifier (CB4013E)

This circuit is from Motorola's 1990 Linear Databook. We can implement it with other operational amplifier. The power supply must be symmetrical.

| Clique na imagem para ampliar |

Fuzz Distorter (CB18457E)
We found this circuit in a 1981 documentation. The circuit can still be easily assembled, as it...
Phase Shift Oscillator (CB11480E)
This circuit was obtained in an old publication from 1979. It describes a simple low frequency...
Switching circuit (CB9226E)
This circuit was found in a 90's EDN. It can be implemented with either TTL or CMOS logic and used...