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- NEC-929 and NEC-920 (they look remarkably like power transistors, and since I only have the 929 and 920's, I'm guessing one is PNP and the other NPN. Any other thoughts? They are apparently obsolete, and Google has no clue!)
- a lot...seriously, a LOT...of SIP resistors. This isn't so much a "what is it", since I know, but a "how do I read these". For instance, I have one that says 8x-2-203. I get that this means there are 8 resistors...each at 203 ohm? And what about something like 10x-1-331? What does the middle number mean?
- Now these are a mystery, and yes I know that a picture would be best but I don't have a camera...sorry...here's my best description:
Oh, and anyone have any idea what I can do with a horizontal TV control IC? :-P
yup, sorry, it's TO-220. Does that more or less imply that it's a power something or other? Could be a regulator for all I know...
(actually, today I just learned that not all caps come with their rating printed nicely on them, and instead of have arcane things like 102k, which apparently means 10nF? a 10, followed by 2 zeros, in picofarads, right? then what's the K for? :-P)
Haha yes, my telephone is from the year 2005, so it came before cameras were commonplace I'm probably just going to take those weird looking things into the surplus store and ask tomorrow, although something tells me they are an arcane version of a Shottky transistor...only the four pins rather than three seem to not agree with me.
If you were wondering, they are apparently an IR LED and an IR detector, that can be used as an encoder if you have reflective tape...or something like that. The guy at the surplus store knew right away. I'll look into getting that cam, and these things seem to be really useful for projects. It's a good thing I have...like 20 of them :-P
This is an infrared detector? I think not!
Quote from: Yuk Monath on July 27, 2011, 08:20:00 PMThis is an infrared detector? I think not! Well, I think I can live with your misconception
Quote from: Soeren on July 27, 2011, 09:22:35 PMQuote from: Yuk Monath on July 27, 2011, 08:20:00 PMThis is an infrared detector? I think not! Well, I think I can live with your misconception Basically it's a photoreflector.... Not clearly detector....Hmmm... his misconception has a point though....
If you were wondering, they are apparently an IR LED and an IR detector, [...]