January 30, 2014 - QRPThief kit
The QRPThief kit is our version of the famous
Joule Thief circuit.
here's a way to use those not quite dead AA alkaline cells in the battery drawer!
turn them into a handy little flashlight / nightlight
high brightness white LED
case is a 2 AA cell battery holder with switch
will run with AA cell voltages down below 0.7 volts
no circuit board - simple 5 component circuit
one toroid wound by builder
two holes to drill in the battery holder by builder
printed documents are NOT included, please print/view your own from the pdf files provided
The QRPThief kit is $4 + shipping/handling
Kit Documentation: download (Right click/save target as) and print the QRPThief kit
manual/schematic/build doc ,
in Adobe Acrobat (.pdf) format or text file.
To purchase the QRPThief kit, print out a Kit
order form to figure your order manually
to let your browser do the math!
OR to pay with a credit card use the Paypal shopping cart buttons below.
For larger quantity purchases, to combine with other items, for DX purchase price
or for any other questions, please send an email to me, Chuck Olson, WB9KZY at:
with your question or the items you want and we'll email you a Paypal invoice.