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1. Tube🌞Time (tubetime@mastodon.social)'s status on Monday, 26-Feb-2024 12:14:24 JST Tube🌞Time

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   pin 9 (and a bunch of others) are inputs. they go through a series resistor, a diode clamp (not visible here) and into a double set of inverters. this creates a buffered version of the input and an inverted version.