Pair tube direct heat triode tube made in Russia, measured value 68/66 (rejected value 38) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Direct thermal triode sold per bottle, made in Russia, measured value 56 (rejected value 38) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube Russian metal base measurement value 56/54 (rejected value 44) lot: 1110/1110 ※Pairs are determined based on GM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box