Long Smooth Plate. Diamond Mark on Bottom. Made in Germany. Label is mostly erased. where minimum good value is 875.
1pcs ShuGuang ECC83 Vacuum Valve Tube 12AX7B Amplifier HIFI New Upgrade Version. ShuGuang factory 2024 year new upgrade version with separator plates inside. Type : ECC83 12AX7.
I think this is an RFT brand tube. Use your own judgement on pictures. Tested on Sencore MU140. 90 is new tube on tester. 88/89
(1) Mullard 7025. Made by Mullard for GE. Large halo getter. This is also known as a CV4004/ECC83 tube type. The printing on this tube is in superb condition as seen in the photos. Highly sought after and very rare in NOS form.
For your consideration are two Mullard 12AX7 ECC83. These tubes were tesed on a TV-7U where the minimum reading is 32 and the reading for a new tube is 49 or better.