Part Number: 12A6977-1 (Kit) Part Number: 12A6977-59 (Extender board assy) Part Number: 12A6978-1 (Adapter kit,test) Part Number: 12A6980-1 (Adapter) Part Number: 12A6980-3 (Adapter) Part Number: 12A69961-1 (Extender) Part Number: 12A6A1P1 (Part) Part Number: 12A-6DB (Ne) Part Number: 12A6GT (Mix) Part Number: 12A6JAN (Rca) Part Number: 12A6M (Ne) Part Number: 12A6TD660 (Printed circuit bd) Part Number: 12A6V (Valve) Part Number: 12A6Y (Electron tube)