This was probably one of the most popular P-Box kits, and this one is unassembled! These are becoming very difficult to find. The plastic case is in excellent condition for its age, with only minor scratches and blemishes. The plastic tab is still firmly attached, these are often missing. The kit has the inner cardboard box, these too are often missing from opened kits. Both seals are broken and in poor condition, see photos. Complete with all the original paperwork. The kit operates on one AA battery, and one 22-1/2 volt battery. You can use two ordinary 9-volt batteries connected in series, or see our other listings, for a 22.5 volt battery we may have. Who knows when, if ever, another original 1-Tube Radio P-Box Kit will come to the market! Don’t miss out! It is assumed that the unit(s) will be installed and operated by qualified personnel. See our other listings, for more of our EXCLUSIVE PC board kits shown below! Powered by SixBit’s eCommerce Solution. The item “ORIGINAL vintage UNBUILT Radio Shack Science Fair AM tube P-BOX electronics kit” is in sale since Friday, August 20, 2021. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1960-Now”. The seller is “ppelectronics” and is located in Middlesex, New Jersey. This item can be shipped worldwide.