Pair tube Russian reprint model lot: 1903/1902 measured value 54/48 (rejected value 44) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube Russian reprint model lot: 1903/1903 measured value 52/50 (rejected value 44) side getters with original box have been reduced ※Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke)