-40%

LUDLUM MODEL 2: GEIGER COUNTER + PROBE + 3 LBS. URAN ROCKS 0.00 + SHIPPING

$ 116.16

Availability: 100 in stock
  • Item must be returned within: 60 Days
  • Restocking Fee: No
  • Condition: Used, works and runs extremely well; fully calibrated. Includes working Johnson end-window probe; also three lbs. natural uranium rocks, plus 39-page owner's manual. Side-panel has a bright flashing white LED lamp that flashes when clicks are heard on the side-speaker.
  • All returns accepted: Returns Accepted
  • Refund will be given as: Money Back
  • Radiation Detector Type: Geiger Counter
  • Return shipping will be paid by: Buyer
  • Brand: Ludlum

    Description

    GEIGER COUNTER
    LUDLUM MODEL TWO
    WITH SIDE-WINDOW PROBE
    for detecting gamma, beta or alpha radiation
    This Ludlum geiger counter works well, and
    includes an end-window probe on a BNC cable.
    This side-window probe is less sensitive
    than pancake probes, but is
    more sensitive than side-window
    probes. This geiger
    device uses one two standard D-cell batteries;
    the batteries are effective for more than a
    hundred hours of use
    .
    The manufacturer is Ludlum Measurements Co.
    of
    Sweetwater TX.
    Ludlum is America's largest
    manufacturer of geiger instruments, employing 600
    staff.  All Ludlum geiger
    counters, and all their
    components, are
    made in USA. My wife and I
    had a half-day tour of the Ludlum factory
    during our visit in March 2018. The site is
    very windy; the town is surrounded by
    thousands of power-generating wind turbines.
    BNC PROBE-SOCKET ALLOWS
    USE OF WIDE VARIETY OF PROBES
    THE END-WINDOW PROBE
    is in perfect
    operational condition.
    As is true
    with all geiger
    probes
    made in North America, this probe
    operates
    on DC 900 volts. With its BNC probe
    socket,
    the instrument is
    versatile and can
    use any type
    of geiger probe
    made
    in North
    America: pancake, end-
    window,
    side-window,
    or scintillator probe.
    FLASHING WHITE
    LED LIGHT
    On the left side of the bathtub
    case, I have installed a bright
    LED lamp which flashes in synchrony
    with the loud clicks heard on the
    speaker. Both flashes and sound
    clicks can be turned off with the
    audio switch on the top panel.
    Extras will be enclosed,
    such as several DVD disks,
    photos of the uranium rock canyon,
    published articles about uranium
    mining, etc. The geiger counter
    will be a good instrument either
    for outdoor prospecting, or
    for indoor use with your
    uranium rock collection.
    BONUS ADAPTER CABLE:
    LUDLUM-C
    SOCKET
    TO BNC PLUG
    Suppose that you already own a geiger probe,
    and it has a Ludlum-C "male" plug.
    No problem!
    I have made a 12" adapter cable so that you can
    use a Ludlum-C probe with this
    geiger counter! Just
    insert that probe's
    plug into the "female"
    C-socket on
    this short
    cable, then insert the cable's
    gold-plated
    BNC
    plug into the socket of this Ludlum Two.
    Of course,
    you also have the side-window probe included with the
    instrument. With
    this adapter cable, you can use ALL
    North American
    geiger probes: those with
    BNC plugs
    plugs or those
    with Ludlum "C" plugs. Total flexibility!

    .00 DISCOUNT IF THIS GEIGER
    COUNTER IS PURCHASED WITH
    NO PROBE INCLUDED
    The end-window probe is included with purchase
    of this Ludlum Two instrument.  If you already
    own a working geiger probe, and do not need
    another, then I will discount the total price by
    .00.
    Pancake probes are the most sensitive
    type of probe.
    The second most sensitive
    type of probe
    is an end-
    window
    probe
    .
    GEIGER COUNTER WILL
    BE FULLY CALIBRATED
    Prior to shipping, I will check and adjust the
    instrument's calibration.
    My calibration
    tools
    are: (1) Ludlum
    Model 500 calibrator, (2)
    Eberline
    MP-2 pulse generator,
    (3) Fluke high voltage DC
    probe,
    and (4) Sperry high-level DC
    voltmeter.
    Calibration involves
    adjusting the three range-
    multipliers, and also adjusting
    the geiger's
    DC-900 volt
    signal that energizes the probe.
    MAKE AMERICAN URANIUM
    MINING GREAT AGAIN!
    If fully developed, New Mexico's uranium
    mines, closed since 1989, can supply 100%
    of America's electric power for the next
    250 years. The Mount Taylor Mine at
    San Mateo NM, America's richest,
    is planned to reopen in 2023.
    BONUS 40-MINUTE DVD VIDEO,
    NOT FOUND ON YOUTUBE!
    Enclosed with the uranium rock will be
    my original DVD video disk produced
    during March 2017 and July 2019. This
    40-
    minute video provides a narrated tour of
    the locale where these uranium rocks are
    found through prospecting. You will see
    Jurassic Canyon's Northwestern Cliffs, which
    geologically exemplify the Morrison Formation.
    The Morrison Formation
    has been the source
    for more than half of all uranium ore mined
    in the past hundred years;  It is also the
    richest source of dinosaur fossils. The DVD
    video program is enclosed at no extra cost.
    (This DVD video is unavailable on
    YouTube.
    )
    WHAT YOU GET FOR
    0.00 PLUS SHIPPING:
    1.  Ludlum Model Two geiger counter
    instrument in excellent working condition.
    The glass meter has three scales: counts-
    per-minute (CPM), mr/hr, and battery.
    2.   Three pounds of natural uranium rocks,
    with 15% giving low-level response, 70%
    giving middle-level of response, and
    15% giving upper-level response.
    3. A 6" Fiesta Ware dinner plate, 1936-1943
    vintage, with 14% uranium glaze. The glaze
    color
    is d
    escribed officially as
    "radioactive red,"
    but
    its appearance has an orange hue. The
    Fiesta plate's activity is
    at a moderate level.
    4. Many printed extras such as newspaper
    articles, photos, brochures, etc.
    5.  Original 40-minute DVD video,
    "JURASSIC
    CANYON URANIUM,"
    dated March 2017
    and July 2019, showing details of the locale
    where most of the three pounds of uranium rocks
    were found.  More than half of all uranium
    ore mined in the USA in the past century has
    been found within fifty miles of Jurassic Canyon.
    (This DVD video is
    not
    displayed on YouTube.)
    6.  Two or more other DVD videos on
    uranium-related topics. These may be about
    the uranium mining industry, historical
    topics, or atomic bomb tests of the 1940s
    to 1960s  (recently declassified films)
    7.  Two D-cell batteries in the
    instrument, plus a second new pair.
    8.
    Photocopy of the user's manual for
    the Ludlum Model Two geiger counter.
    9.  TWO BNC CABLES:  One is short
    (3 ft) and the other cable is long
    (4-5 ft).  Velcro straps are
    enclosed so that the long cable can be
    attached to the buyer's wooden pole;
    this enables the prospector to test
    uranium rocks on the ground without
    having to bend over while doing it.
    10. 12" BNC ADAPTER CABLE FOR PROBE
    WITH LUDLUM "C" PLUG. This special
    cable ensures that ANY geiger probe
    made in North America, can be used
    with your geiger counter.
    11.  THREE VINYL ROUND COVERS
    TO PROTECT THE PROBE-SENSOR.
    These can be either red color or
    black color.  The sensor inside the
    probe is delicate and fragile, and
    these vinyl covers protect the sensor
    from damage.
    12.  FLAT URANIUM ROCK IS
    ATTACHED TO RIGHT SIDE OF BATHTUB
    CASE. A strong adhesive glue holds the flat-
    sided rock to the case.  The rock generates
    25,000 CPM activity when measured with a
    pancake; the end-window must be protected
    with a vinyl cover that is provided.
    0.00 plus shipping
    SERIAL NUMBERS
    This Ludlum geiger counter has
    this serial number
    # 2699
    .
    The
    Johnson end-window probe
    (Model
    GP-200)
    is made
    in USA.
    It has a
    BNC
    plug
    . The Johnson probe's serial
    number
    is:
    #8472
    . All Johnson
    geiger probes are made in USA at
    Idaho Falls, ID.
    NO CORROSION IN THE
    BATTERY COMPARTMENT
    Be wary of any geiger counter advert
    that fails to show a closeup photo of the
    battery chamber;  Rust or corrosion
    could make the instrument unusable.
    This geiger counter instrument has
    absolutely NO rust in the battery
    chamber
    and the instrument is
    unaffected.
    0.00 plus shipping
    ROCK HOUNDS: FREE ESCORTED
    ROCK-COLLECTING OUTING
    Buy this geiger counter from me, and I can guide you
    during uranium rock collecting: Either at Jurassic
    Canyon (near Grants NM) or at Uravan Uranium
    Fields, near Naturita Colorado. I will keep half
    of the found rocks. Best months for rock
    collecting are
    April through November.
    NATURAL URANIUM
    ROCKS ENCLOSED
    Possibly, dinosaurs may have
    trampled on these uranium rocks.
    These will total three pounds,
    minimum.  They will not be identical
    to rocks shown in photos; They will
    be a random assortment of
    uraninite,
    carnotite, tyuyaminite, coffinite, or
    Jurassic todilto limestone.
    The Jurassic
    todilto limestone rocks have an age of
    approximately 200-146 million years. The
    northwestern cliffs at Jurassic Canyon
    are part of the famed
    Morrison Formation,
    known both for uranium and also for
    dinosaur fossils.
    More dinosaur fossils,
    and more uranium ore, have been recovered
    at Morrison Formation sites than at any
    other
    geological sites in the USA.*
    Some of
    the enclosed rocks will be from the Lisbon
    Valley
    uranium region in Southeastern Utah,
    where I prospected for the rocks, in June
    2017.
    Some will be from Uravan Colorado,
    where I gathered uranium rocks in April 2018.
    For shipping, the rocks are contained in metal
    cans for shielding while being transported,
    so I may need to swap in other rocks to
    fit the space available in the containers.
    *Source: William Chenowith: Uranium mining in
    the Morrison Formation.
    Modern Geology,
    1998.
    0.00, plus shipping
    SIXTY DAY MONEY-BACK
    SATISFACTION WARRANTY
    About half the geiger counters sold on
    are advertised as, "Untested - No
    Returns."  I suspect that sellers who
    advertise in this way are unloading
    dysfunctional junk, and they know it. Why
    buy from them?  I offer the best money-
    back
    returns during the first sixty days.
    You can return the instrument even if it
    works
    perfectly, but you expected
    more features.
    SHIPPING COST
    Shipping will be via UPS-ground.
    Any overpayment on shipping costs
    will be fully refunded, immediately
    after the parcel has been shipped.
    The parcel will be insured by UPS.
    Stephen Buggie, Ph.D.
    Professor Emeritus of Psychology
    Univ. of New Mexico, Gallup