Let's see what his feedback says:
Complaint : SCAM ARTIST, HOME MADE PIECE OF CRAP, BUY THIS AT RADIO SHACK FOR $0.25
Complaint : Not what you are expecting!!!!
Complaint : took it to a mechanic and he laughed at me, told me i had a fancy resistor
Neutral : Item was just a resistor inside a box...save your money and search for plans..
Follow-up by jollyjimmy - search google.com for instructions on how to make! SCAM!!!
My guess is all you would need to do is add the resistor for the same effect, if there is any effect at all.