[time-nuts] huntron tracker advice & troubleshooting withoutschematic advise
fortime at bellsouth.net
Thu Nov 27 02:04:01 EST 2008
----- Original Message -----
From: "Patrick" <optomatic at rogers.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Tuesday, November 25, 2008 7:39 PM
Subject: [time-nuts] huntron tracker advice & troubleshooting
> Hi Everyone
> I have consistently had success repairing laboratory instruments(my
> small business) when I have a schematic and I have consistently failed
> without one, lots of opportunities are slipping threw my fingers.
> I want to invest in tools that will help me troubleshoot without a
> schematic. I was thinking about getting a Huntron tracker. Has anyone
> had any experience with one? Could you feedback?
> Are there other tools that have helped you fix circuit boards without a
> Thanks in advance-Patrick
We have used that technique of quick troubleshooting some components off an
on for forty years, long before the "Huntron tracker came about.
I first saw an article about that method in a service bulletin from Sylvania
back in the mid 60's.
If you have an x-y scope or a scope that has and external horizontal input
with variable gain, a small external circuit in addition to the scope will
do the same thing as the Huntron tracker. This would give you the ability to
play with it without spending any money.
The circuit consists of a transformer with 3 to 6 volts out, a few
resistors, diode or two and a switch. If needed I could find the original
schematic, but doing a google on it turned up a couple of links, noted
Inexpensive Curve Tracer
As others have noted in this thread, it doesn't fix anything but can be
useful in "some" applications. It will quickly identify a short or open and
with experience, identify most defective "discreet" semiconductors. In the
case of complex IC's, I doubt it would be much use. If you research the
Huntron tracker display results, you will see the patterns displayed in
various semiconductor situations.
As a general rule, servicing electronics, or about anything is simply a
logic and deduction process. Basic knowledge of the components, theory of
operation, and of the circuit under test is still necessary.
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