Yes, that is correct, I get a periodic blink (and a serially transmitted 0 or 1) every 750ms (and about 20-30 additional, but non-periodic events a minute). I do get counts from radioactive sources (ye olde school anti static brush) but there is presumably the approximately 80 cpm offset. I'll scope in as far as I can and get back to you, but I don't have a 50x or 100x probe.
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