richjd

Grand Falls, New Brunswick, Canada Joined November 13th, 2006
4 Instructables 46,232 Views 13 Comments 9 Followers

Retired teacher and High School Principal. Teacher of math, science, digital electronics, computer leteracy, computer programing

Instructables

About OHM and His LAW

15K Views, 83 Favorites

Trigonometric Functions

3.8K Views, 7 Favorites

J-K Flip-Flop - How It Works

24K Views, 6 Favorites

ADS Instant DVD USB2.0 That Shuts Down

2.8K Views, 2 Favorites