The pair tube is thought to be made by TESLA due to its 6CA7 compatible ball brown base double ring getter structure. Measured value 50/48 (rejected value 30) There is a getter burn with a white box*The pair is determined based on the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Sold 1 bottle ECC82/12AU7 compatible ball, military tube, made in England, measured value 98 (rejected value 56) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Sold 1 bottle ECC82/12AU7 compatible ball, military tube, made in England, measured value 100 (rejected value 56) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box