20 MHz filter (CB6735E)

This 20 MHz bandwidth circuit was suggested by the National Semiconductor in 1970 documentation. Modern equivalent operational can be used.

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5W Amplifier (CB24852E)
Using the ULN-3784B this circuit typically supplies 5 W at 24 W. However, it can operate from 9 V....
Universal Preamplifier for Microphone (CB960E)
This circuit, from a former publication of 1968 was originally designed for germanium transistors, but with the...
Display Demonstrator (CB24385E)
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