There is a diamond mark sold per bottle, 12AX7 compatible sphere, smooth plate, measured value 48 (rejected value 32), printing is erased ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
There is a diamond mark sold per bottle, 12AX7 compatible sphere, smooth plate, measured value 46 (rejected value 32), printing is erased ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
There is a diamond mark sold per bottle, 12AX7 compatible sphere, smooth plate, measured value 48 (rejected value 32), printing is erased ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
There is a diamond mark sold per bottle, 12AX7 compatible sphere, smooth plate, measured value 48 (rejected value 32), and the printing has disappeared, but it was determined that it was ECC83 based on the structure ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
The pair tube seems to be made of RFT due to its 6CA7 compatible sphere structure. Measured value 44/44 (rejected value 30) lettering with replacement box is missing ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
The pair tube seems to be made of RFT due to its 6CA7 compatible sphere structure. Measured value 42/40 (rejected value 30) lettering with replacement box is missing ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
※There is a TELEFUNKEN ECC803S, but the printing was determined to be CV4004 from the structure, and the printing was determined to be a reprint. The plate is not a box type, only one side of the rib plate is caulked. Sold in 1 bottle, ECC83/M8137 equivalent tube, measured value 44 (rejected value 32) with a replacement box ※The measured value indicates the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
※There is a TELEFUNKEN ECC803S, but the printing was determined to be CV4004 based on the structure. The plate is not a box type, only one side of the rib plate is caulked. Sold in 1 bottle, ECC83/M8137 equivalent tube, measured value 36 (rejected value 32) with replacement box ※The measured value indicates the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing was a reprint. The plate is not a box type, only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 38 (rejection value 32) with replacement box ※ The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing is CV4004, the printing is a reprint. The plate is not a box type, only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 42 (rejection value 32) with replacement box ※ The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box