Mini Oscilloscope Clock DG7-6 Cathode Ray Tube 3”

By Andrew Gregory. Posted

This article was originally published as part of HackSpace magazine, which has since been incorporated into Raspberry Pi Official Magazine.

Mini Oscilloscope Clock DG7-6 Cathode Ray Tube 3”

CRTs – cathode-ray tubes – are a ridiculous, obsolete technology. They run at a much higher voltage than LEDs – they’re bulky, fragile, and considering their ubiquity in the 1980s, there are relatively few of them around. Still, there’s something evocative about them, so we love this clock. It uses a three-inch CRT display salvaged from an old oscilloscope, brought to new life with an ESP32.


Andrew Gregory

Features Editor Andrew trawls the internet for Cool Stuff while keeping the magazine running smoothly.

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