Mullard 7308 / CV4108 — Matched Quad. Up for sale is a rare, precision-matched quad ofMullard 7308 (CV4108) vacuum tubes. These high-reliability E188CC equivalents featureGold Pins and the desirableSolid Disc Getter.
Rare NOS NIB Siemens Halske E88CC 6922 CCa MUNICH W. German Strong Matched Quad
Made in West Germany, these highly collectible audio tubes feature internalgrey plates, topring getters, and corrosion-resistantgold pins. As shown, all four tubes have been thoroughly tested on a laboratory-gradeAmplitrex AT1000 tube tester.