nichols@en.ecn.purdue.edu (Scott P Nichols) (03/15/91)
Anyone know what it is?
Scott
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/vv\ \ __Insight from Oregon...Scott P. Nichols
_____/ \ ~~~~~~~~~~~~~~~~ (nichols@en.ecn.purdue.edu)nelson@skid.ps.uci.edu (Matt Nelson) (03/15/91)
sorry, dont know the wavelength, but according to the "HP 48 I/O Technical Interfacing Guide" (HP, June 1990), the part number of the IR LED is either an NEC SE303A or an HP HEMP-3301, and the photo- transistor is an EG&G VATEC VTT 9112. maybe you could get the wavelengths easier with the part numbers in hand... -matt