This is the fourth and final message that shows how you can build an inexpensive
Lee Crock device. This design uses AA batteries instead of D-cells because
of the ease of finding 2-cell battery holders, the size, and weight.
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I went to my local Dollarama store, and found Panasonic Super Heavy Duty Power
4 pack AA batteries at $1.25 each - so I bought three packs, giving me 12 AA
cells. Ten of them are used in this project. Make sure that the purchased battery
holders come with two wires - the red wire is the positive, and the black
negative.
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Twist ends of the 5 red wires of the holders together, and do the same with
the black wires. You will see the relay on the timer board just above the
UP and DOWN push-buttons. And to the right of the relay are three terminals,
marked NO (normally open), COM (common), and NC (normally closed). The
junction of the red wires goes into the NO terminal (use a screwdriver to
secure the wires). The ends of the black wires go into the NC terminal.
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Remove 1/4 inch of the plastic insulation of the long wire, and put it in the
COM terminal. The other end of the long wire is attached to an alligator clip.
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When you put the batteries into the holders, make sure that they are inserted
correctly, with the negative side of each battery going to the wire-spring side
of the holder.
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The alligator clip is then attached to a wire mesh placed under the sheet of
the bed. In my case, I use an electric blanket, with the alligator clip?
connected to one of the pins where where the heat controller's plug is attached.
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I've been using this Lee Crock device for a couple of months, and have noticed
that my feet have felt warmer during the night. It has also helped with issues
of getting a good night's sleep, without getting up to pee; and with constipation.
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The next DIY project will be making an Eeman biocircuit.?
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David
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