GENERAL INFORMATION A The Radio Parts Catalog contains a complete alphabetical listing of all Radio parts serviced by Chevrolet Motor Division The part number of each Radio set is printed on the tag that is attached to the inside of the cover of the receiver The part number of the Antemia may be determined by the Radio Unit number The identification tag on which the Serial number is shown is attached to the timer frame inside the Radio case directly under the cover and must be removed for the re placement of tubes Radios shipped from Delco Radio Division prior to October 14 1957 lacked identification tags thus no Serial numbers are available for these Radios By referring to the chart on the following page you will find a listing showing the Unit number Antenna number Antenna Type Radio Set number Code number Year model and description r Information for each part is arranged in order by Code number followed by the noun description and the part num ber Code numbers separated by a hyphen indicate inclusive usage Code numbers separated by a comma indicate usage applicable only to the specific Code numbers listed When ordering Radio parts it is only necessary to know the Code number of the Radio and only the Antenna number is required when ordering Antenna parts EXAMPLE When ordering a Coil Oscillator for a 986515 Radio you will find by referring to the following chart that the Code number is 47 By referring to the Alphabetical Index under Coi1s Oscillator which is listed under Group C you will find Code number 47 after which part number 7258911 is shown as the part number for the Oscillator Coil 1956 RADIO 2 Gnirnl