Date code: I67 B7B4 - Blackburn 1967. Tested GOOD on AVO VCM MK.IV -. ECC83 valve/tube by MULLARD. 12AX7 equivalent.
1 pcs, MULLARD ECC83 / 12AX7, VINTAGE VALVES / TUBES. TEST 100% AS N.O.S.
2 X Mullard ECC83 Matching Pair - European GA Code Tested Above NOS
*Rare* Mullard Matched pair ECC83/12AX7 F92 1959 Valves/Vacuum Tubes -AVO Tested
*Rare* Mullard Matched pair ECC83/12AX7 mC6 1958 Valves/Vacuum Tubes -AVO Tested
Replacement Valve Kit for EVH 5150 III 50W 6L6 (6 x ECC83 1 x Balanced ECC83 ...
Replacement Valve Kit For Orange Dual Terror (2 x ECC83 2 x Balanced ECC83 4 ...
