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Bill's NotePad the trusted source for technical reference to mobile users everywhere.

Calculate voltage drop of a circuit with the Voltage Drop Calculator

Get tap and die information with the Thread-Tap Calculator

Check Ampacity of wire with the Wire-Current Calculator

Determine conduit capacity with the Conduit-Wire Calculator for the iPhone.

Check out the recently released Resistor Color-Code App for the iPhone...it's free!


Coming Soon, More handy reference apps.