3 V buffer (CB7142E)

This 3 V rail to rail buffer was found in a National Semiconductor documentation. The gain is unit.

600 ohm Line Driver (CB6224E)
This circuit was found in an 80's Electronic Engineering. The circuit uses operatives of the time...
30 mm Optocoupler (CB14668E)
The selected circuit was obtained in a Texas Instruments opto-electronics manual. The transistors can be...
Noise Limiter (CB12005E)
In short wave receivers or in the recovery of signals from scratched discs this circuit can be...