NOS PAIR RAYTHEON 5755 (12AX7 With Adapters) ECC83 Clear Top Tested 4.7411-D
W/ 2 Adapters to 12AX7 Included (5755 --> 12AX7). Pair Raytheon CK5755. TESTED as 5755 on SENCORE TC-136. NOS w/ 2 Original Boxes Included. AUDIO VACUUM TUBES. DATE CODES: 19 U08 DATE CODES MATCHING .