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Manufacture | Model/Title | Price | Arrival date

PRIME 300B Ver.4

Ask 26-49743-10320-00
PRIME 300B Ver.4
Manufacture:SUNVALLEY
Price: JPY 14,545(pair)
Shop: Osu shop
Arrival: 2026-05-17 20:08:05
description
Pair tube Sun Valley sorting ball direct heat triode tube made in China white base gold foot measurement value 72/70 (rejected value 58) both sides have burns on the head ※The pair is determined based on the gM value measured by the test machine TV-7 (Kojima Yosuke) Accessories: none

PRIME KT88

Ask 26-49278-07526-00
PRIME KT88
Manufacture:SUNVALLEY
Price: JPY 6,818(pair)
Shop: Osu shop
Arrival: 2026-04-26 20:07:27
description
Pair tube Sun Valley sorting ball beam output tube measurement value 64/62 (rejected value 44) There is dullness on the base part with the original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box (with writing)

PRIME 2A3

Ask 26-89024-00052-00
PRIME 2A3
Manufacture:SUNVALLEY
Price: JPY 11,818(pair)
Shop: Osu shop
Arrival: 2026-02-17 19:59:59
description
Pair tube direct heat triode Sun Valley sorting ball made in China measured value 58/56 (rejection value 38) There is a slight burn on the tube head ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke) Accessories: none

SQ707Japan

Ask 25-46667-12089-00
SQ707
Manufacture:LUXMAN
Original price: JPY 35,000
Price: JPY 72,545
Japan 1969 made
Arrival: 2025-07-27 20:09:15
description
Switches have been maintained, including disassembly and polishing! LUXMAN vintage prime amp from the 60's. Although it is a transistor, it was made in '69, so you can hear the soft, rich sound unique to LUXMAN. The vintage design is a masterpiece that is attractive enough as an interior decoration. The exterior has scratches on the top plate and scratches on the upper front. Serial 10213855 (Yonejima Satoshi) Maintenance information: 2025.7.27 Maintained (transistors and capacitors have been replaced. Switch type disassembly contact polishing correction. (I/O pin jack polish) Accessories: No accessories Main specifications: continuous output 17W+17W W373 x H125 x D227 mm 4.9 kg
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