[BULK] - [Amps] Equalising resistors with HV diodes

Joe Isabella n3ji at yahoo.com
Wed Sep 22 13:58:08 EDT 2004


Oh yeah!!  I forgot about those things.  We had a Huntron Tracker that did that kind of graphic analysis of junction devices, caps, coils, etc.  It was actually a pretty cool device.
 
Joe,
N3JI

Steve Katz <stevek at jmr.com> wrote:
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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