Pair tube pentode bell type smoke measurement value 92/92 (rejected value 50) with original box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube pentode bell type smoke measurement value 100/100 (rejected value 50) with original box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box