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Manufacture | Model/Title | Price | Arrival date

300B

This item has been sold.You can't purchase now. 24-44355-23102-00
300B
Manufacture:Western Electric
Original price: JPY 290,000
Price: JPY 189,091(pair)Sold Out
Shop: Osu shop
Arrival: 2024-10-26 20:12:28
description
The price has been reduced. 2024/10/26 sales price 218,000 yen pair tube made in 2022 (code 2226/2226) electric genuine direct heat triode tube American graphene coating measurement value 74/72 (rejection value 58) original box (in wooden box), in good condition with quality assurance ※The pair is judged based on the gM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: original box (with wooden box), quality assurance certificate

2A3

This item has been sold.You can't purchase now. 24-44336-22943-00
2A3
Manufacture:RCA
Price: JPY 38,182(pair)Sold Out
Shop: Osu shop
Arrival: 2024-10-26 20:12:26
description
Pair tube direct heat triode double square getter JAN measured value 58/56 (rejected value 38) with white box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

WX-1PU.S.A

Ask 24-43220-13739-00
WX-1P
Manufacture:REDEEMER
Original price: JPY 980,000
Price: JPY 125,455
U.S.A
Shop: Osu shop
Arrival: 2024-09-12 20:13:12
description
The disposal price has been reduced. Member prices are not applicable. 2024/9/12 sales price 298,000 yen Maintenance completed! Redeemer tube power amplifier with MFA D75B power amplifier changed to triode tube connection specifications. It is designed to pursue pure tone with Class A operation. Bias adjustment with a meter is also easy to use, and you can adjust it yourself even when the vacuum tube is replaced (Yasuhito Koshihama) Maintenance information: 2024.9.12 maintenance completed (6 block capacitors replaced due to electrolyte condenser fluid leak, mute switch, RCA jack replacement bias switch cleaning, vacuum tube pin cleaning*Bias and output sound checked. Output approx. 25 W in AC 100V environment (3 connections) Accessories: power cable, circuit diagram, catalog Main specifications: output 20W+20W actual measurement 25W+25W (3 connections) fixed bias method vacuum tube 6550 x 4 12AX7 x 2 6FQ7 x 2 OA2 x 2 W394 x H210 x D304 mm 29 kg

300B

This item has been sold.You can't purchase now. 24-89024-23348-00
300B
Manufacture:Western Electric
Price: JPY 243,636(pair)Sold Out
Shop: Osu shop
Arrival: 2024-10-22 19:17:21
description
Pair tube direct heat triode code: 8139/8139 American measured value 82/78 (rejected value 58) There is a slight burn on the top of the tube with the original box ※The pair is judged based on the gM value measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6A3

Ask 24-41590-15616-00
6A3
Manufacture:TUNG SOL
Price: JPY 14,545(pair)
Shop: Osu shop
Arrival: 2024-08-23 19:25:22
description
Pair tube direct heat triode smoke, made in America, seems to be an OEM product for Canadian Marconi. Measured value 70/68 (rejected value 38) with original box (box is damaged) *Pairs are judged based on values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box

6A3

Ask 24-41590-15617-00
6A3
Manufacture:TUNG SOL
Price: JPY 14,545(pair)
Shop: Osu shop
Arrival: 2024-08-23 19:25:20
description
Pair tube direct heat triode smoke, made in America, seems to be an OEM product for Canadian Marconi. Measured value 68/68 (rejected value 38) with original box (box is damaged) *Pairs are judged based on values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box

6A3

Ask 24-41590-15618-00
6A3
Manufacture:TUNG SOL
Price: JPY 14,545(pair)
Shop: Osu shop
Arrival: 2024-08-23 19:25:09
description
Pair tube direct heat triode smoke, made in America, seems to be an OEM product for Canadian Marconi. Measured value 68/68 (rejected value 38) with original box (box is damaged) *Pairs are judged based on values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box

VT-52

Ask 24-43481-16169-00
VT-52
Manufacture:Western Electric
Price: JPY 90,727(pair)
Shop: Osu shop
Arrival: 2024-07-20 20:07:56
description
Pair tube 45 Special compatible ball straight heat triode tube fishing rod type filament measurement value 90/86 (rejection value 55) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

UV-211A

Ask 24-41590-15709-00
UV-211A
Manufacture:NEC
Price: JPY 54,545(pair)
Shop: Osu shop
Arrival: 2024-07-13 20:17:40
description
Pair tube large triode tube made in Japan Actual measured IP value: 46/44mA (the best standard IP value for this amplifier is 50mA) There are adhesive marks on the base part on one side, and the other side is inexpensive because there are few getters ※Sound is checked and plate current values are measured with a test amplifier, and it has been determined that operation is good (Kojima Yosuke) Accessories: none

6B4G

Ask 24-41590-15695-00
6B4G
Manufacture:KEN RAD
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2024-07-13 20:17:41
description
Pair tube direct heat triode tube, made in America, JAN smoke measurement value 62/60 (rejection value 38) with white box ※Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: white box

VT-52

Ask 24-42974-12704-00
VT-52
Manufacture:HYTRON
Price: JPY 31,818(pair)
Shop: Osu shop
Arrival: 2024-06-09 20:11:58
description
Pair tube 45 Special compatible ball straight heat triode tube fishing rod type filament measurement value 86/84 (rejected value 55) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

VT-52

Ask 24-42974-12705-00
VT-52
Manufacture:HYTRON
Price: JPY 31,818(pair)
Shop: Osu shop
Arrival: 2024-06-08 20:03:15
description
Pair tube 45 Special compatible ball straight heat triode tube fishing rod type filament measurement value 84/84 (rejected value 55) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

6B4G

Ask 24-42838-10913-00
6B4G
Manufacture:RAYTHEON
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2024-05-23 19:51:30
description
Pair tube direct heat triode tube American-made smoke measurement value 68/68 (rejection value 38) with white box (lid claws are missing) *Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box

6B4G

Ask 24-42838-10912-00
6B4G
Manufacture:RAYTHEON
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2024-05-23 19:51:28
description
Pair tube direct heat triode tube American-made smoke measurement value 72/70 (rejection value 38) with white box (lid claws are missing) *Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box

SV811-3

Ask 24-42617-09090-00
SV811-3
Manufacture:Svetlana
Price: JPY 15,455(pair)
Shop: Osu shop
Arrival: 2024-05-23 19:50:34
description
Pair tube direct heat triode tube made in Russia measured value 72/70 (rejected value 38) with original box (inner cushioning material has deteriorated) *Pairs are determined based on gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box

CK6336A

Ask 22-36248-44639-00
CK6336A
Manufacture:RAYTHEON
Price: JPY 21,818(pair)
Shop: Osu shop
Arrival: 2023-12-03 20:09:05
description
Pair tube, triode, metal base, made in America, with original box, the size of the glass tube is different on the left and right, but the internal structure is the same ※The pair is determined based on EM values measured with the SENCORE TC-162 test machine (Kojima Yosuke) Accessories: white box

CK6336A

Ask 22-36248-44640-00
CK6336A
Manufacture:RAYTHEON
Price: JPY 18,182(pair)
Shop: Osu shop
Arrival: 2023-12-03 20:09:04
description
Pair tube, triode, metal base, made in America, comes with a box, is inexpensive because there are fewer gutters and there are burns ※Pairs are determined based on EM values measured with the SENCORE TC-162 test machine (Kojima Yosuke) Accessories: white box

6GA4

Ask 23-40152-18225-00
6GA4
Manufacture:TOSHIBA
Price: JPY 13,636
Shop: Osu shop
Arrival: 2023-09-17 19:30:30
description
Pair tube triode for Hi-Fi made in Japan*Pairs are determined based on EM values measured with the test machine EM-604 (Yosuke Kojima) Accessories: none

6336A

Ask 22-36933-48596-00
6336A
Manufacture:CETRON
Price: JPY 27,273(pair)
Shop: Osu shop
Arrival: 2023-07-13 20:09:13
description
Pair tube, triode, metal base, made in America, with original box*Pairs are determined based on EM values measured by the SENCORE TC-162 testing machine (Kojima Yosuke) Accessories: original box

211

Ask 22-34955-33526-00
211
Manufacture:Haltron
Price: JPY 21,818
Shop: Osu shop
Arrival: 2022-10-08 20:05:19
description
Large triode sold per unit measured IP value: 50 mA (the best standard IP value for this amplifier is 50 mA) There is a getter burn with the original box ※ I checked the sound output and measured the plate current value with the test amplifier, and it was determined that the operation was good (Kojima Yosuke) Accessories: original box

NR44

Ask 23-38135-07623-00
NR44
Manufacture:不明
Price: JPY 72,727(pair)
Shop: Osu shop
Arrival: 2023-04-16 19:28:19
description
Pair tube, PX4 equivalent tube, direct thermal triode, made in England, measured value 54/52 (rejection value 39) with white box (there is writing on the box) *The pair was judged based on the GM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box

UV-211-A

Ask 23-38135-05636-00
UV-211-A
Manufacture:不明
Price: JPY 50,000
Shop: Osu shop
Arrival: 2023-03-21 20:01:57
description
The large triode print sold in Japan has disappeared, but I think it was made by NEC from the structure. Measured IP value: 45 mA (the best standard IP value for this amplifier is 50 mA) with the original box ※ I checked the sound output with the test amplifier and measured the plate current value, and it has been determined that the operation is good (Kojima Yosuke) Accessories: original box

6336A

Ask 23-38257-02847-00
6336A
Manufacture:CETRON
Price: JPY 27,273(pair)
Shop: Osu shop
Arrival: 2023-02-13 19:49:13
description
Pair tube triode metal base, made in America, original with box ※ The pair was determined based on the EM value measured by the SENCORE TC-162 tester (Kojima Yosuke) Accessories: original box

PX4

Ask 23-38257-02860-00
PX4
Manufacture:OSRAM
Price: JPY 86,364(pair)
Shop: Osu shop
Arrival: 2023-02-12 20:05:04
description
Pair tube direct thermal triode made in England measured value 54/50 (rejection value 39) with replacement box The plate shape of the spring fixing part on the top of the head is slightly different on the left and right, and there is discoloration on the plate on one side ※ The pair was determined based on the GM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: replacement box

VT-52

Ask 22-37780-54778-00
VT-52
Manufacture:UNITED ELECTRON
Price: JPY 34,545(pair)
Shop: Osu shop
Arrival: 2023-01-09 20:09:51
description
Pair tube 45 Special/38142 compatible ball, direct heat triode, fishing rod type, filament measurement value 120/118 (rejection value 55) with original box ※ The pair was determined based on the GM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: original box

VT-52

Ask 22-36377-46344-00
VT-52
Price: JPY 34,545(pair)
Shop: Osu shop
Arrival: 2022-10-23 20:21:23
description
Pair tube 45Special compatible spherical triode fishing rod type filament measurement value 100/92 (rejection value 55) *Pairs are judged based on GM values measured by test machine TV-7 (Kojima Yosuke) Accessories: none

VT-52

Ask 22-36377-46342-00
VT-52
Manufacture:NATIONAL UNION
Price: JPY 36,364(pair)
Shop: Osu shop
Arrival: 2022-10-23 20:16:28
description
Pair tube 45Special compatible spherical triode fishing rod filament measurement value 94/86 (rejection value 55) *Pairs are judged based on GM values measured by test machine TV-7 (Kojima Yosuke) Accessories: none

5998A

Ask 20-28951-37109-00
5998A
Manufacture:GE
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2021-04-16 20:08:23
description
Pair Tube Bi-triode Power Tube Made in USA JAN Measurement Value 60/60 (Rejection Value 40) With Original Box ※ The pair is judged based on GM value measured on the tv-7 test machine (Yosuke Kojima) Accessories: original box

5998A

Ask 20-28951-37108-00
5998A
Manufacture:GE
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2021-04-16 20:08:19
description
Pair Tube Bi-triode Power Tube Made in USA JAN Measurement Value 60/60 (Rejection Value 40) With Original Box ※ The pair is judged based on GM value measured on the tv-7 test machine (Yosuke Kojima) Accessories: original box

5998A

Ask 20-28951-37110-00
5998A
Manufacture:GE
Price: JPY 2,727
Shop: Osu shop
Arrival: 2021-04-16 20:08:15
description
1 sold bi-triode power tube made in the USA JAN measurement value 58 (rejection value 40) with original box ※ Measured value is gm value measured by tv-7 tester (Yosuke Kojima) Accessories: original box

5998A

Ask 20-28951-37107-00
5998A
Manufacture:GE
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2021-04-16 20:08:02
description
Pair Tube Bi-triode Power Tube Made in USA JAN Measurement Value 60/60 (Rejection Value 40) With Original Box ※ The pair is judged based on GM value measured on the tv-7 test machine (Yosuke Kojima) Accessories: original box
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