Active Integrator (CB24390E)

This circuit from July 1975 Radio Electronics uses any operating system with a symmetrical source. The waveform is shown on the side of the diagram.

| Clique na imagem para ampliar |

741 RC Oscillator (CB19350E)
This oscillator circuit for sinusoidal audio signals with operational 741 requires a symmetrical power...
Darlington Logic Tester (CB13786E)
Found in a 1974 Radio Shack documentation. This circuit must have a connection to the ground of...
Pole finder (CB5950E)
This sensitive circuit detects the live pole of a power grid or outlet. The circuit makes use of a high...