Found: Taito's Operation Wolf board schematics...

Archived from groups: rec.games.video.arcade.collecting (More info?)

I thought it was a photo-resistor (?) same as any other light pen/gun..


"John Robertson" <spam@flippers.com> wrote in message
news:2005081723113363647%spam@flipperscom...
> Now, does anyone have info on the photodiode sensor used in the game?
> This is part number SP3ML by KODENSHI CORP. of Korea. I have the PDF
> for the device, but can't figure out if this is a true photodiode or
> is, instead, really a photovoltic device. The problem with it being a
> photodiode is it has no pullup at all, and is simply in parallel with a
> 10K resistor to common and the output goes to a 0.01 or so cap that
> feeds the first LM318 OP amp.
>
> Trying to sub for a poorly defined device is a pain when you are on a
deadline!
>
> John :-#(#
> --
> (Please post followups or tech enquires to the newsgroup) John's
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