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Huntron Tracker 1005B ?

Discussion in 'Electronic Repair' started by Henry Kolesnik, Jan 21, 2004.

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  1. Mine is out of alignment and Huntron's site has pdfs for the alignment of
    units with serial number prefixes. Mine is an older unit without any
    prefixes and I wonder if anyone might have those instructions and perhaps a
    manual copy?
    hank wd5jfr
  2. bunnydawg

    bunnydawg Guest

  3. yes they do,,,,$50.00 plus shipping and handling and the unit isn't worth
    much morethan that!
    hank wd5jfr
  4. Chuck Harris

    Chuck Harris Guest

    Hi Hank,

    How do you know your unit is out of alignment? They have virtually
    nothing inside them that matters. If an open gives you a vertical
    line, and a short gives you a horizontal, (45 degree on LOW) line, and
    a diode gives you an "L", and a cap an "O", you are as good as it gets.

    I would bet that your unit has the same pots in just about the same
    locations as all of the 1005's.

    Also, the 1005 is *supposed* to have the short circuit trace at a 45
    degree angle when in the LOW position.

    I have the manuals for my 1005, but it is a 1005B1S prefix 21F. The
    manuals have enough staple bound, double sided pages that it would
    cost me alot of time, and nearly $50 to xerox at the local Staples.

    Sometimes, you have to look beyond the "market value" of an instrument
    and see what the instrument will do for you that is of value. My
    Huntron has paid for itself 1000 times over. I paid full freight for
    my manuals from Huntron.

    -Chuck Harris
  5. I agree it's pretty simple but a little correct info would go a long way!
    I don't know what high med and low pushbuttons are supposed to do?
    I just tweeked a few unlabeled pots carefully to see what effect they
    And adjusted some that had the "right" effect...
    With nothing connected I now get a horizontal line on high and med but a 60
    degree slanted one on low!
    With leads shorted I get a nearly vertical line on high, med and low!
    A 22mf cap gives a decent circle on high and med but a 60 deg. slant line on
    A diode gives an L on high and med but a V on low...
    So if you can tell me what high, med ane low are supposed to do I might be
    able to adjust or fix it.
    hank wd5jfr
  6. Chuck Harris

    Chuck Harris Guest

    Hi Hank,

    High, Medium and Low are used to select the maximum voltage that is
    applied to the device under test. All positions are harmless to all
    known semiconductor devices.

    When the probes are open circuited, you should see a perfectly
    horizontal line in High or Medium, and a diagonal (corner to corner)
    line rising from left to right, in the Low position. I stated this
    incorrectly in my post.

    When the probes are short circuited, you should get a vertical line
    in all three positions.

    If you connect to a low value cap, you will see an oval that is more
    horizontal than vertical, if you connect to a higher value cap, the
    oval will be more vertical than horizontal.

    The patterns will change depending on the selection of High, Med and Low.

    Try testing a zener diode. You will see that in the low position it
    looks just like a diode, in the medium and high position, it will give
    a zig-zag pattern.

    It sounds to me like your unit is working just fine!


    Ps, Please post and copy to my email! When people do that, I end up
    writing two replies to the same post. If you want a personal reply,
    then just use my email.
  7. Amazing....this machine can be duplicated with a scope and a small AC
    power supply. All Huntron did was package it nicely and charge an arm
    and leg for.

    Circuits for this sort of gizmo were very common in the 70's and are
    probably on the 'net

    A quick Google search with the terms "circuit diagram curve tester
    oscilloscope" found a number of interesting suspects. The one on
    Agilent's scope is very nice...

    John :-#)#

    (Please post followups or tech enquires to the newsgroup)
    John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
    Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
    "Old pinballers never die, they just flip out."
  8. Chuck
    Thanks for the tips, got the line from 60 deg to 45 degrees by tweaking
    another pot...
    I tested a 30 volt zener and got a good Z but just got as small blip on one
    leg of the z on a 56 volt zener
    I measured the voltage on the probes, 60 Hz, hi: 40.5 volts, med 20.4 volts,
    and lo is 6.6 volt.
    Since these are rms, and peak to peak would be 2.8 higher,,
    Does Huntron caution about testing any devices because of the voltage?
    With a short all 3 levels show a vertical line but with an open high and
    medium present a horizontal line while low presents a 45 degree line. Do
    you know the reason for this?
    I posted a personal reply as well as to the groups as I figured others might
    be interested.
  9. In the military we called it an OCTOPUS. For an example see:

    73, Roger
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