Twilight Simulator (CB26055E)

This circuit simulates dusk by slowly dimming an incandescent bulb. It was found in the August 1998 issue of Electronics Now magazine.

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Single Supply Function Generator (CB18996E)
We found this function generator with two FET operators in a 1996 Texas Instruments application manual....
8 Channel Encoder with 4017 (CB4530E)
This circuit was obtained from an English magazine from 1979, but can be easily assembled today...
Electronic Bell for Telephone (CB17982E)
The integrated circuit used in this 2002 project is not very common. It is powered directly by the...