question about diodes

Marcos - Munky · March 30, 2006, 09:50:00 AM

I got a few unlabeled diodes and want to know what I can do to know if they're usable in effects. They look like a common Si diode.

WGTP · March 30, 2006, 10:06:55 AM

Both of my multimeters have a setting to measure forward voltage threshold. I've also been using it to measure Mosfets for clipping.

Marcos - Munky · March 30, 2006, 11:45:48 AM

It's the setting with a diode symbol? I have this one in my multimeter too. How much voltage should I get to know if it's an usable diode?

JimRayden · March 30, 2006, 11:55:37 AM

It should show an open circuit one way and a 200-800-ish number with the diode the other way 'round.

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Jimbo

bancika · March 30, 2006, 01:49:15 PM

I measured 905-908 for all 8 diodes 1N914 I have. Are those ok?

JimRayden · March 30, 2006, 02:15:58 PM

Yupz.

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Jimbo

Marcos - Munky · March 30, 2006, 03:34:45 PM

Thanks a lot for the ifo. I will measure all the unmarked diodes I have.

WGTP · March 30, 2006, 04:03:16 PM

I usually get around .3v for GE's .7v for SI's and 1.7v for LED's

RickL · March 30, 2006, 09:40:00 PM

Somewhat off topic but I have a bunch of zener diodes that I've scavenged, typically 15 to 24 volt versions. They have the normal 0.7 or so volt forward voltage drop and their rated reverse drop. Can they be used in place of normal Si diodes as clippers?

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question about diodes