Buffer 4049 (CB26316E)

The purpose of this circuit found in a 1990s Popular Electronics is to increase the current capability of CMOS stages.

Infrared Transmitter (CB6370E)
This circuit was found in a Hands On Electronics with the suggested application an optical link for...
Sequential Control 4017 (CB11283E)
With each touch on S1, an output of 4017 is activated, this in sequence 3, 2, 4, etc. These...
Guitar Amplifier (CB17520E)
This excellent preamp for use with guitars was found in a 1986 documentation. The key on the TR2...