On 2/17/2011 7:46 PM, Nathan House wrote:
> There actually isn't an 'x' on mine. I finally found a picture of the
> one I have in an ebay listing:
> http://cgi.ebay.com/10-x-LM358DT-LM358-Low-Power-Dual-Op-Amp-SOIC-8-SMD-I=
C-/320612943519?pt=3DLH_DefaultDomain_0&hash=3Ditem4aa605469f

 >See how there's no markings?


On many IC's, orientation is denoted by the top being beveled along the=20
side with pin 1.  In your photos, this appears to be the case.  The=20
bottom edge of the chips you show appear to have a bevel on the bottom=20
edge making pin 1 the pin on the bottom left.
--=20
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