Driver Darlington (CB8957E)

This circuit was obtained in a 1960 documentation of General Electric. It is applied in the control of registers of the time.

| Clique na imagem para ampliar |

Active Cut-Out Amplifier (CB15422E)
The amplifier shown in the figure was obtained from the Anlog Devices linear integrated circuits...
Silk Screen Printing Timer (CB4652E)
If the reader still uses silk screen printing tables this is an interesting circuit found in a 1994...
Stereo balance test (CB9106E)
This circuit monitors the output of a stereo amplifier, checking the balance and balance between...