NOS New Old Stock / New in Box GEC KT66 (CV1075) Matched QUAD from 1970's UK Made

New Old Stock / New in Box  Matched QUAD  of GEC KT66 (CV1075) from 1970's

Super rare closely matched (within 5mA) - STRONG (120%+!!) QUAD of one of the best KT66 tubes every produced!

Comprehensively tested for Shorts (Hot & Cold), Gas & Emission, Leakage, Plate Current and Mutual Conductance.  

Full test results included

Made in England

All Identical  "Double Bottom Getter" Construction
Excellent GEC Stickers
Excellent Writing
Original Blue & Yellow GEC Boxes
Original Cardboard Liners
Brown Base / Bottom Dual Getter
Platinum Matched (within 5mA)

AVO VCM163 Tested and Matched
(New tube = 65.0mA / 6.3mA/V)

Test Results
(A) 77.5mA / 6.4mA/V
(B) 78.5mA / 6.3mA/V
(C) 79.00mA / 6.5mA/V
(D) 82.0mA / 6.5mA/V