As promised in the live stream...
Added 2023-03-23 23:41:05 +0000 UTCHere's the video about the mechanics version of a logic probe.
It can indicate polarity of 12V circuits, and forcibly change their state with internal short circuit protection and warning.
But do NOT use on lower voltage sensor circuits not operating at 12V.
Let me know if you think the components I mentioned could be omitted.
https://www.youtube.com/watch?v=sa06Y7HYzoc
Comments
The ones in many arcade repair videos are classic logic probes for operating at 5V. Some arcade PCBs even had them built onto the board.
Big Clive
2023-03-28 17:52:16 +0000 UTCInteresting that you can use it on positive or negative ground. My 64 Jaguar e-type was positive ground as were many Brit cars of the era. I believe they switched to negative ground in 1965. My 70 Jaguar e-type is definitely negative ground or "earth" as you folks say. Can't remember when they went from 6 volts to 12 volts though.
George Cohn
2023-03-26 20:47:44 +0000 UTCNice. I've been interested in these devices since watching people using them in arcade repair videos - currently working on designing my own with some 'custom features'.
Raven Luni
2023-03-26 16:19:27 +0000 UTC
