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richjd
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Grand Falls, New Brunswick, Canada
Joined November 13th, 2006
4
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Retired teacher and High School Principal. Teacher of math, science, digital electronics, computer leteracy, computer programing
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richjd's Instructables
About OHM and His LAW
Trigonometric Functions
J-K Flip-Flop - How It Works
ADS Instant DVD USB2.0 That Shuts Down
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10K+ Views
Earned a bronze medal
1+ Featured Instructable
Earned a bronze medal
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