Using an old Tek 575 curve tracer works, too. Those can deliver
thousands of volts bias, and let you not only run a rectifier prospect into
avalanche, but allow you to look at the breakdown characteristic to pick out
only those devices that are stable in avalanche -- they last a lot longer
(usually forever) than ones that jitter. -WB2WIK/6
> >>
> -- Put a 5 to 10 meg-ohm R in series with a uA meter in series with
> the high-pot tester. Connect to the device under test (DUT) and slowly
> increase V until a reverse current of c. 5uA flows. Stop increasing V
> and record it. This is what going on in pic20 in the Class A amplifier
> project on my Web site.
> >
> > cheerz, Joe
> >
> > Richard L. Measures, AG6K, 805.386.3734. www.somis.org
> >
>
>
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