DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: jimbob on August 07, 2004, 11:31:29 AM

Title: Best way to check if a inductor is good w a DMM
Post by: jimbob on August 07, 2004, 11:31:29 AM
Best way to check if a inductor is good w a DMM? Im new to using that. I ussually use the finger touching method.
Title: Best way to check if a inductor is good w a DMM
Post by: Paul Perry (Frostwave) on August 07, 2004, 10:49:25 PM
The way an inductor fails, usually, is to go 'open circuit' ie to break. In which case, the resistance is infinite. Instead of well below 1k. So put the meter on the 1 or 2K scale & check the resistance.
That's assuming it's a wah inductor. A power supply inductor is lower resistance, the method is the same though.
Title: Best way to check if a inductor is good w a DMM
Post by: Hal on August 07, 2004, 11:16:52 PM
finger toutching method ?

I guess if you _really_ wanted, you could put a sine wave function generator across the inductor, and measure AC current through it...to see that its not shorted or something :-D