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Very nice
I have also recently make a heating strap.
I went to tricky dickies and bought a little packet of nichrome wire for about $4.
I just concertinaed the wire up inside a piece of 50mm wide duct tape folded on top of itself. I then velcroed it to itself around my 120mm guide scope.
I'm powering it with a crappy 12v battery charger that came with a now dead drill. It got pretty hot until I put it on the scope but the scope seems to suck the heat away. It seems to work well although the charger gets pretty hot. Doesn't really matter if it cooks as there always seems to be spare chargers around the house from dead battery operated items.
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