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[DPRG] LED ID

Subject: [DPRG] LED ID
From: gfe gfe at coollink.net
Date: Mon Oct 16 19:43:53 CDT 2000

I've been deconstructing a defunt color copier and have a board with 18 yellow LEDs. They were situated below the image drum, but are group in two sets of 9 rather than evenly across the drum. I was hoping they might be some super bright led to use for line following but they won't excite a phototransistor even if placed flush against it. They emit yellow light. Any idea what these are?

Frank 
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