LM3900 Positive Differentiator (CB5054E)

The circuit shown in the figure has an output voltage rise time of 0.22 ms and an input time constant of approximately 1 ms.

1 kHz Low Pass Filter LM3900 (CB14188E)
The circuit shown below is from the National Semiconductor's 1994 Linear Applications Handbook. The...
Metronome with the CA3130 (CB12478E)
This metronome was found in a 1979 publication, but it can be assembled more easily with the BC548...
Symmetrical 5 V power supply (CB24712E)
This circuit for a maximum current of 1 A is the most common version that uses the 78 and 7905...