Negative Feedback Stage (CB6131E)

This circuit is from a 1967 US publication. The configuration can serve as a basis for designs with modern components.

| Clique na imagem para ampliar |

Simple Metal Detector (CB5335E)
This metal detector circuit uses an AM radio as an indicator. The radio is placed off-station and tuned...
Power Flip Flop (CB6769E)
This circuit was found in an Electronic Design. It makes use of a relaxation oscillator to trigger...
Absolute Value Amplifier (CB4902E)
We found this circuit in an old American documentation. The operational amplifier is not common...