TUBE KIT FOR THE COLLINS R-390A RECEIVER. CONTAINS 25 TUBES---- 1-6DC6, 3-6C4, 2-6AK5W/ 5654W, 6-6BA6/5749W, 7-12AU7/5814A, 3-6AK6, 2-26Z5, 1-0A2. ALL NEW JAN TUBES. SEE MY EBAY STORE UNDER K5SVC FOR MORE COLLINS TUBES, KITS, AND PARTS.