[Laser] LD numbers

Chuck Hast wchast at gmail.com
Sat Jun 16 08:01:49 EDT 2007


On 6/16/07, Art <KY1K at verizon.net> wrote:
> Yes, it's an SI312, now obsolete.
>
> My guess is that it came out of a 1X or very old drive and that the
> 86 in the part number is on a second line-which means it is probably
> made in 1986.
>
> If you know someone in Asia, they might be able to get info on it.
> Many of these things are made in Asia and not made available for sale
> in the US markets, so you need a native to search them out.
>
> Years ago, I learned this from Peter, owner of DIY kits, based in
> Asia. The parts he managed to find for me were amazing, beyond dirt
> cheap and widely available locally-provided you lived in Asia near
> the assembly houses that build this stuff and import the completed
> units into the US>
>
> My first stop would be JRC.JP...which will reject your connect
> attempt if you are based in the US. You need to find a JA ham to look for you.
>
> Needless to say, tracking down actual specs might be impossible.
>

Yes it came out of a old drive. I got it from a computer repair place, I will
have to see what I can do with contacts over in Asia, I get them from the
repair shops for the LD's. Since they are free, I may just have to wing it
on the LD's try to determine what pins are what and test them out. I am
sure I will loose a diode here or there, but again, they are freebees.


-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."


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