Re: Checking M.O. diodes

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve & Jackie Young by way of Terry Fritz <twftesla-at-uswest-dot-net>" <youngs-at-konnections-dot-com>

Put your MWO diode in series with a DC voltage of at least 12 volts, and a
load resistor such as to draw about a tenth of an amp.  Measure the voltage
across the diode.  Forward conducting, it will have a drop of around 7 volts
as I recall (which is why your VOM won't show continuity).  In the reverse
direction, the full DC voltage should be measured, and the reverse current
should be microamps.

--Steve

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, January 31, 2001 8:13 PM
Subject: Checking M.O. diodes


> Original poster: "J. B. Weazle McCreath by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <weazle-at-hurontel.on.ca>
>
>
> Hello coilers,
>
> Anyone have a proven method for checking microwave oven diodes?
> My VOM, even on its highest ohms scale, won't show continuity
> in one direction as it does on "ordinary" (1N4007) type diodes.
> I tried measuring a known good diode, but no luck there either.
>
>
> 73, Weazle, VE3EAR/VE3WZL
>
> Listening: 147.030+ and 442.075+
> E-mail:    weazle-at-hurontel.on.ca
>            or ve3ear-at-rac.ca
> Web site:  www.hurontel.on.ca/~weazle
>
>
>
>