what's inside this potted module? by Tube🌞 Time@mastodon.social · 2026-06-23 07:43 Posted in 懷舊技術、產品 what's inside this potted module? View original 0 Likes 0 Boosts
Comments (4)
looks like acetone will do the trick.
there we go! it's got an LM339 comparator inside, some transistors and capacitors, a jumper resistor, and a bunch of laser trimmed carbon film resistors silkscreened onto the ceramic substrate.
you can see the laser trimming marks.
@tubetime Named "ROO" because it hops the signal over the traces