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CRAZY SOLDANO PARTS

3/30/2000 12:22 AM
kevin
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CRAZY SOLDANO PARTS
the SLO 100 scem shows 2 parts that i cant identify-they are vr1 and vr2--a diode symbol with 2 small arrows pointing away from them-  
1.what are these?  
2.what exactly do they do in the circuit?  
3.is there a common part # for them?  
thanks..

 
Replies:
Don Symes 1. Those are LED's.... -- 3/30/2000 1:22 AM
Joe Lemoine Those are Optoisolators commonly ca... -- 3/30/2000 1:50 AM