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1950's B & W LIE DETECTOR Galvanometer G.S.R. Polygraph
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Time left: |
(9/8/2008 7:01:41 PM) |
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crissysgr8tdeals |
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Current Bid: |
USD 499.99 |
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jadedgypsy Store
1950's B W LIE DETECTOR Model 8AC
Galvanometer / G.S.R.
PLUS comes with an original certificate of 5 year guarantee
extra finger electrodes and clamps
ALSO: BEAT THE BOX a how-to guide to outwitting the lie detector
BW Associates of Michigan City, Indiana manufactured the BW Lie Detector shown here, during the early 1950's. This model is identical to the instrument currently used by Cleve Baxter in his ongoing experiments to determine if plants emit Galvanic Skin Response (G.S.R.) activity. The only function of the Model 8AC is to measure G.S.R. activity. The recording of G.S.R. activity had not been integrated into these early polygraph instruments, thus the G.S.R. sensitivity dial on the left side of the instrument was manually controlled by the examiner to set sensitivity at a perceived norm. The centering dial on the right side of the instrument was used to bring the G.S.R. on the instrument into calibration. The meter counts units of G.S.R, and was very sensitive for its time. The Model 8AC also uses a automatic/manual switch which may be used if the examiner chooses to adjust the sensitivity manually prior to the first relevant question. The examiner had the option of using the automatic setting early in the test.
The BW Lie Detector was still used until just recently, and is still considered a reliable instrument for determining deception. This B W Galvanometer was touted as a "Lie Detector." According to literature at the time, this type of instrument demonstrates nicely in the laboratory
When in operation, a "Deception Indicated" (DI) reading is established when the pen moves above the 'CENTER' operational area on the meter. The 8AC utilizes only two fingerplates, and it is this theory that started the debate between measuring G.S.R. activity, verses the first studies in voice stress analysis.
CENTERED
TRUTHFUL
POSSIBLE LIE OR DECEPTION
Galvanometers
Galvanometers came into prominence during the early 1950's. Polygraph instruments of that era were "cardio-pneumo" polygraphs, with a pneumograph and a cardiograph. The effect of lying on the galvanic skin response had long been studied by the scientfic community. The Galvanometer became the new competition for the polygraph instrument. It was a one dimension instrument measuring only changes in the galvanic skin response in the test subject. It remained a serious "lie detector" instrument until galvanographs were incorported into polygraph instruments as a third recording module.
This is a MUSEUM QUALITY piece.
This unit still works like a charm, (IN FACT) out of the last 4 of these units I have sold, This is the best calibrated and working unit I have sold so far. The inside is in IMMACULATE CONDITION and the outside is in good condition..Some scuffs / normal ware for it's age. Overall I consider this in GREAT COSMETIC WORKING CONDITION
I have sold 4 of these units ranging from $1000.00 - $2200.00
Your getting a great deal at my asking price
Absolutely great for a collector.. Also is ready for use for the James Bond in you.
An absolute beautiful scientific instrument
Easy to operate; no delicate mechanism; no lengthy training school; no clumsy graphs; no chest or arm restrictions; confortable finger electrodes; sensitivity standizer; 95 % accuracy; rugged construction
ALSO FOR YOU:
BEAT THE BOX a how-to guide to outwitting the lie detector
***PLUS AS A FREE ADDED BONUS***
I WILL THROW IN HOW TO GET THE TRUTH OUT OF ANYBODY EBOOK AND HOW TO PASS A LIE DETECTOR EBOOK / DELIVERED VIA EMAIL ONCE PAYMENT IS RECIEVED
Please contact me if you have any questions at all!
YOU CAN FEEL CONFIDENT BUYING FROM ME, JUST TAKE A LOOK AT MY FEEDBACK.....................
If at anytime, during our transaction together, that there is a problem, of any kind, I will give 100% of my time to work it out, all it takes is communication between the buyer and the seller. All I ask is that when you receive your item, that you leave me positive feedback so that I know that you received it, and I will do the same for you.
I PREFER Paypal for this item..
I also accept Money Orders and Cashiers Check.
THANK YOU
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