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Mystery of the Unkown 2

Mystery of the Unkown 2

33934-large.jpg  33934-1.jpg  360-3D.jpg    California Proposition 65 Warning
Stock No: 33934 BD
 Review Average:  
 Number of Reviews: 1
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Availibilty: In Stock   Units: 567

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 Detailed Description
Mystery Board for parts!
Supposed to be some kind of thermal & pump control for a therapeutic machine.
Sorry But no Information
Whole bunch of surface mount amp, transistors, resistors etc.
Mini LCD, Bi color LED, Coaxial Power Jack (5.5/2.5mm)
L: 23/4" W: 1-1/2' D: 1-1/4" WT: .04

California Proposition 65 Warning WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
(This item was manufactured prior to August 31st, 2018)

 Product ReviewsClick here to review this item
First Look at the DeRoyal T600 Hot and Cold Therapy Unit Controller
This is a medical device controller, allows the user to apply heat or cold to areas of the body. I bought 6 to experiment with. There is a PIC16F872 chip under the LCD. At this point I have only applied variable DC Power to the controller. Looks like it starts working with as little as 7 volts, the display shows what I assume is a temperature, the LED changes color from Red to Green or Green to Red, as voltage is increased to 11.5v DC the display shows ICE, then if the Temp sensor next to the LED is touched the display incremented up to 86 deg [in Deg F, I assume]. There are 4 solder pads next to the blue Temp sensor that look used, possibly additional Temp sensors? I will add additional info as I experiment further. P.S I have short video of applying power to device; and plan to take some pictures of the PIC16F872. I cut all legs of one side of LCD off and bent it so I can see the Chip & PCB around It.
- Richard Weaver, CO

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