RARE 1920′S VINTAGE US APEX 12-A SHORT WAVE RADIO CONVERTER!! ONE OF THE FIRST CONVERTERS TO TURN A TRF RADIO INTO A SUPERHET OR A REGULAR SUPERHET INTO A DOUBLE SUPERHET!! TO USE THE CONVERTER THE HOME RADIO ONLY NEEDS TO BE TUNED TO APPROXIMATELY 910 KHZ WHICH IS THE OUTPUT FREQUENCY OF THE CONVERTER. CONNECT THE ANTENNA TO THE CONVERTER AND THE CONVERTER OUTPUT TO THE HOME RADIO ANTENNA AND GROUND TERMINALS. WHEN YOU TURN THE CONVERTER ON THE ANTENNA IS SWITCHED FROM THE RADIO TO THE CONVERTER AND THE CONVERTER IS CONNECTED TO THE RADIO. THEN YOU SELECT THE DESIRED BAND AND USE THE TUNING CONTROL TO SELECT THE DESIRED STATION!! THE 3 TUBES TEST EXCELLENT AND THE CONVERTER WORKS GREAT RECEIVING STATIONS ON ALL THREE BANDS!! (THE APPROXIMATE RECEIVED FREQUENCIES IN MHZ FOR EACH BAND ARE ;; LOW 1.5 TO 3.75 , MEDIUM 3.58 TO 9.1 , AND HIGH 8.4 TO 20).. THE CABINET NEEDS SOME REFINISHING AND DOES HAVE A LITTLE VENEER DAMAGE BUT OTHERWISE IS IN SOLID CONDITION. FOR CONDITION SEE THE PICTURES. THIS IS AN EXTREMELY RARE SHORT WAVE CONVERTER FOR THE COLLECTOR!! OF COURSE IT WOULD LOOK GREAT IN YOUR OFFICE OR HOME AND BEING A RARE ” US RADIO & TELEVISION’APEX 12A’ ” IT IS A SPECIAL COLLECTOR PIECE!! The free listing tool. The item “RARE 1920′S VINTAGE US APEX 12-A SUPERHETRODYNE SHORT WAVE CONVERTOR! WORKS” is in sale since Tuesday, June 06, 2017. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1930-49″. The seller is “pardneer” and is located in Bremerton, Washington. This item can be shipped worldwide.