High Speed Line Driver (CB14335E)

The circuit is from 1994 National Semiconductor documentation. The component is not easy to obtain, but there are equivalents that can be searched.

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Pulse motor control (CB20554E)
This circuit was found in the PC documentation from 1996. The maximum current of the motor is...
Audio generator with the 741 (CB24106E)
This circuit is from the time when the 741 was first introduced. It was published in the February 1971...
General Purpose Audio Preamplifier (CB15656E)
Only two transistors are used in this preamp for low-sensitive transducers, such as guitar and...