A digital clock with an analog appearance. 144 3 mm LEDs in a circle show 12 hours with a 5 minutes resolution. 11 standard logic IC’s are used. All parts are through hole. Power supply can be any ...

Note, the 74HC14 can be used instead of the 74HC132 almost everywhere in the circuit. —Peter Demchenko studied math at the University of Vilnius and has worked in software development.

Here’s another project selected from Elektor’s long history of “idea-oriented” mini articles typically found in the erstwhile Summer Circuits magazines. Back in 1984, “One-Armed Bandit” was just one ...

The circuit in Figure 1 allows you to convert capacitance into a pulse train by using a constant current source and a linear monostable formed by two NAND-gate chips (74HC132). The circuit also ...

The circuit in Figure 1 allows you to convert capacitance into a pulse train by using a constant current source and a linear monostable formed by two NAND-gate chips (74HC132). The circuit also ...

You may need to try different PDF viewers and print settings to get these to print right. I use the default “Document Viewer” that came with Lubuntu. I have tried printing from Firefox, Okular, and ...

The circuit in this Design Idea converts negativepulses to positive pulses. Although that task may seemsimple, the negative pulses have amplitudes of −5 to −2V.The positive pulses also need different ...