Instrumentation Rectifier (CB19750E)

This circuit can make use of almost any operational amplifier and the diodes are for general use. It is intended to excite an analog instrument.

| Clique na imagem para ampliar |

Line amplifier (CB6992E)
This circuit was found in ancient American documentation. It provides a 70 Vpp signal at...
Wien Bridge Sine Oscillator (CB12738E)
The figure shows a Wien Bridge circuit with non-linear feedback. The resistance of the RL lamp is...
Crystal Oscillator for the 2 meter range (CB3929E)
Found in documentation for radio amateurs of the 70's, this circuit generates signals from 18 to 24...