[GreenKeys] Loop supplies, or how to drive a selector magnet.

[COURYHOUSE at aol.com]

how about using the dewalt charger as the pwr source with the    usb board. 
what sizse resistor added to the  existing resistor?   ed#
 
 
In a message dated 5/19/2016 8:18:05 P.M. Mountain Standard Time,  
kevin.dewitt at gmail.com writes:

Mine was a DeWalt 14.4 rechargeable drill battery on a model 15 for  5 
minutes keyed by one of Eric's demod  boards.

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