I have one of the small Kendrick two channel four port controllers I purchased from a fellow IIS member along with a strap and it is a great thing. Very compact and Velcro holds it on the mount and saves dew , mould and and a little refocusing.
I looked at making my own strap with resistance wire and a little sewing which would be interesting. The controller I have measured at a voltage cut down to 6 v or so for each channel and a total maximum of 7 amp I think although it is rated to much more and cuts out on low voltage input .
I suppose a strap could be powered by my drill battery USB port at 5v. ? I also have a 100 mm computer CPU fan with a speaker cable plug on the end which I can plug into the controller.
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