I have a Hobbico Deluxe power panel, on a crappy flight box I bought at a swap meet for $12 and the voltage reg doesnt work on mine either it stays at 12 volts and fried 1 cox .049 glow head and 1 nelson glow plug before I (duh!) figured it out, the fuel pump didnt work either..Rog
Oh the way I fixed it was to buy a new power panel for my crappy plastic field box...