Electrical Engineering
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Lawrence Johnston

I'm a San Francisco Bay Area programmer working in Objective-C/Cocoa and C#. I also dabble in Python.

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207 What is a decoupling capacitor and how do I know if I need one? Apr 17 '10
115 What’s the proper soldering iron temperature for standard .031" 60/40 solder? Mar 22 '10
31 How do I connect components when using a circuit board with pads but no traces? Apr 13 '10
31 What’s the proper soldering iron temperature for standard .031" 60/40 solder? Mar 22 '10
9 Should I default to pull-up or pull-down resistor with tact switches? Apr 19 '10
5 Pinout of a 3 wire magnetic card reader May 21 '10
3 Personal electronics tool kit Apr 18 '10
1 Pinout of a 3 wire magnetic card reader May 21 '10
1 Why does a headphone attenuator need separate resistance for each side instead of a shared resistor for both? Oct 3 '14

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