WHAT AT FIND: NIB, UNBUILT, Vintage Heath Kit IG-5280 RF Signal Generator! A complete unbuilt Heath Kit IG-5280 Signal Generator in original box with all parts, cabinet and assembly manual (some red marks on several pages). The unit is completely mobile as it is powered by 2 internal 9 V batteries (or the optional IPA-5280-1 AC supply). ALSO- 3 extra MPSA-20 (Q3, 4, 5) AND 1 extra 2N5458 (Q7) semiconductors, all New, are included in case you ever need one. Range: 310 kHz- 110 MHZ: Open... circuit Output voltage of 2.0 volts rms. Be the first one to assemble and fire this unit up! I do not charge hidden, handling, or packing fees. See my other items listed as well. NO RETURNS ON UNBUILT KITS.