Sold 1 bottle, 300B equivalent tube, direct heat triode tube, English tea base, double ring getter, measured value 66 (rejected value 58) with original box ※The measured values indicate GM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode tube, white base, made in Russia, measured value 84/76, rejected value 58) with replacement box ※Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube direct heat triode tube, white base, made in Russia, measured value 80/80 (rejected value 58) with original box ※ pair is determined 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)
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
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
※Only 1 bottle Sun Valley Sorting Ball Direct Heat Triode, Brown Base, Gold Foot, Made in China, Measured Value 66 (Rejected Value 58) with white box*Measured values are GM values measured with the TV-7 testing machine (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
Sold 1 bottle EF86/6267 compatible ball, military high reliability tube mesh measurement value 46 (rejected value 33), seems to be made by GEC due to the structure. Comes with a white box ※The measured values indicate GM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: white box