08/02/2017 at 22:24 •
@jaromir.sukuba sent me some KPX80
The title of datasheet reads: "silicon planar phototransistor NPN, for photoeletric sensors of punch tapes or positional sensors".
The pitch is 2.54mm, not 2.5, but it's still good for a 5mm pitch.
The remaining question is : what is the spectral response and what type of light should I use ?
The only mention I find is a 2400°C temperature, which might be understood as "warm white"... Some incandescent light would do, it seems. This begs tests !
04/21/2017 at 22:05 •
I just got a few CNY70.
Unfortunately they are a bit too large... 6mm instead of 5mm wide, so I can't use regular 5mm paper...
I still have to see what I can do with the BPW34.
If I can find them in my workshop, since I got them before the renovation...