The attached file is a GIF of the transmitter circuitry for Keith Payea's
Cheap Sonar. (~27K)

-BN



Attachment converted: wonderland:U2_Fig_1.GIF (GIFf/GKON) (0000BE73)
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   Country Robot            "Modular robot components
   69 S. Fremont Ave. # 2     for education and industry"
   Pittsburgh, PA 15202
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