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And There We Go – UV EPROM Succumbs to Sunlight

September 3, 2017

17-09-03 erased eprom
So in the end it took about 8 days of mostly sunny weather outdoors on a south-facing window-sill to clear all of the CY27C256. It also got briefly rained on then dried off with rubbing alcohol but i doubt that had any effect.
Actually there are STILL some uncleared locations in the eprom. It’s fine for testing if i’m careful.

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