The Apple II's CPU clock has jitter or a glitch. This issue is not new-it has been present since its original design in 1977! Bald Engineer uses an oscilloscope to show how often the glitch occurs and how to correlate that jitter to its source-which is useful when you are not testing 40-year-old devices.
The device under test (DUT) in this video is the Mega IIe project. It's a fully compatible Apple IIe built around the Mega II chip.
Watch the Mega IIe video here: • Mega IIe: First Fully ...
Related Links: www.addohms.com/measuring-app...
#appleii #electronics #oscilloscope
Chapters
00:00 Stretch, Glitch, Jitter
00:28 Apple II Clocks
02:44 Analog Video Signals
04:26 Clock and Video Means Jitter
06:20 kthxbai
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Video produced by James Lewis (@baldengineer):
baldengineer.com
7 июн 2024