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22-23 September 2010, Mid-Autumn Festival
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0: How to Buy?
1: Amplifier & Kits
2: Electronic
3: Chassis & Accessary
4: Cables & Wires
5: Tube
6: Tube Socket
7: Transformer & Iron
  • Choke
  • Daburu Output Transformer
  • Filament Power
  • General use Transformer
  • James Transformer
  • Mars Interstage
  • Mars Power & choke
  • Mars PP Output
  • Mars SE output
  • R-core Power
  • Toroidal power
  • 8: Tools
    9: Links
    10: News
    11: FAQ
    12: DIY Hints Book
    13: Photo Gallery

    Current News

    FAQ (Ordering)

    New Arrival

    AL-299-S
    AL-299-B
    A2001B-G
    A2001B-B
    A2001B-S
    LM-260-037EU
    280W Z11 EI-core Power transformer - Design for 2A3 x 2. Also good for EL84 x 4; EL34 / 45 / 46 / 47 / PX25 x 2
    AL-316B
    AL-316B Full Aluminum chassis for Pre-amp or small power amp - Black color version (Same as AL-316S in structure)
    BFA-YA-75G
    PRA-800S
    PRA-800B
    PRA-800 Heavy duty Chassis for Pre/Integrated/Power Amplifier - Black color
    AR-998S
    AR-998S Heavy duty Chassis for Power Amplifier - Silver color (Details to be update and this item to be available soon)
    AR-998B
    AR-998S Heavy duty Chassis for Power Amplifier - Black color (Details to be update and this item to be available soon)
    AR-998G
    AR-998S Heavy duty Chassis for Power Amplifier - Champagne gold color (Details to be update and this item to be available soon)
    DX-35A
    BFA-YA-75S
    SPC-YA-55G
    PP-10G
    PP-05G
    PP-03G
    XLR-200MG
    XLR-200FG
    PC-IEC-YAAL
    PC-US-YAAL
    XLR-800FG
    XLR-800MG
    XLR-FB
    XLR-MB
    R0080-043B-US
    YA-12-OCC
    YA-77-OCC
    YA-717PW-OCC
    YA-2250S-roll
    YA-2250S
    TS-CM07BG-teflon
    KB-AL26XS
    KB-AL34XS
    KB-AL40XS
    KB-AL48XS
    TS-CM09BG-teflon
    TS-CM08BG-teflon
    TS-CM04BG-teflon
    RCA-YA-106S
    RCA-YA-101S
    RCA-YA-78R
    SPC-800B
    SPC-PW-Crystal
    SPC-V8X
    LM-9803
    SPC-YA-77R
    SPC-YA-75C
    PC-13A-plate
    COT-70
    JS-6169HF-B
    JS-2025NL-G
    CH-AL-22
    CH-BL-22
    AV68
    AV69-B
    RCA-ACE-01G
    AL-Glory-Paladin-SemiBlank
    RCA-YA-05LE
    RCA-YA-02P
    CH-BL-quad16
    CH-BL-27CU
    CH-BL-22CU
    CH-BL-20CU
    CH-BL-1620
    85mm series with 16mm and 20mm holes Base plate for Tube Socket. Designed for 9-pin socket TS-CM09BG, TS-CM09BGS or TS-CM09BS and TS-CS07G
    AL-314B
    AL-314B Full Aluminum chassis for Pre-amp or small power amp - Black color version (Structural same as AL-314)
    AL-328B
    AL-328S
    PB-BR06GL
    Very heavy Solid brass Power bar case - gold color hair line finish
    PB-BR06G
    PB-BR06CU
    Very heavy Solid brass Power bar case - Rose gold (copper color)
    SPC-V8-silver
    SPC-V4-silver
    211B Shuguang
    SPC-Divider-H2
    SPC-Divider-H3
    Copper mesh 05
    NYM 06-BGS
    NYM 06-grey
    NYM 06-RGB
    NYM 06-White
    NYM 08-BG
    PSU-A19-PCB
    PSU-A19
    LM-9902U
    LM-9901U
    SPC-ACE-wood
    YA-63MG
    YA-63A-MG
    SPC-06AG
    TS-CL04BG-teflon
    SPC-YA-ZG
    RCA-ACE-wood
    5U4G (5z3p) China NOS
    PC-EU-YA
    CH-TC-70AL-S
    CH-TC-100AL-S
    CH-TC-100AL-B
    PC-US-YA
    PC-IEC-YA
    JS-6123HS-G
    James output transformer for Single ended 2.5/3.5/5k - champagne gold color
    JS-2010NM
    JS-2008NM
    JS-2002NM
    PB-08AL-S
    PB-08AL-B
    CV181 - Blue - Bakelite
    300BZ Shuguang
    CH-column
    RCA-Yarbo-50R2
    DS-F79G
    KB-AL-17B
    CH-BL-rings
    CH-BL-FM68G
    LS-19-PCB
    LS-19
    YA-F-75
    CT-203T
    GS-01
    YA-35G
    SPC-Divider
    RCA-YA-03P
    SPC-PhonoSilver wire
    SPC-Yarbo-1009G
    SPC-Yarbo-1005Y-CU
    SPC-Yarbo-1009R
    SPC-Yarbo-1001G-Y
    SPC-Yarbo-1002G
    Mallory 170uF 450VDC
    PC-Hubbell-IG8300
    Super PUP
    KB-CU-35G
    TS-CM08G-PCB
    SPC-858-XL
    Hellfire BASIC
    RCA-805F-CU
    SPC-858M-CU
    CB-300
    PP-01-Teflon
    SPC-BP-002AB
    SPC-BP-001AB
    James Transformer
    Mid-High end audio transformer.
  • James Audio transformer are well know since 1990. Comparable to High-end Japan transformer. They sold to Japan market since 1995. Their transformer tested by us for excellent price and performance ratio. Excellent potted appearance and stable quality.;
  • 7 Item(s) found System time: Tue 07 Sep 2010 04:11 am
    JS-2002NM
    James Nickel core interstage transformer for Push Pull 5k:5k (1+1:1+1)
  • James model JS-2002NM
  • N means "Nickel" Core Lamination is Nickel alley
  • M means "Nomex" isolation material
  • Fully Potted
  • P.P 5K (1+1:1+1)
  • 10Hz~80KHz-1dB
  • Primary current 80mA
  • Base plate size 72 x 72mm
  • Screw holes on base plate is 59mm x 59mm center to center
  • Made in Taiwan
  • Weight :2450 (gram/pair)
  • Size (mm): 85H x 72 diameter
  • Brand : James
  • Item No: JS-2002NM
    Quantity (pair)Price (US$)
    1 - 2550.00
    3 - 9520.00
    10 or more500.00
    JS-2002NM(#648) last update on 08/Dec/2009, at 10:19 pm

    JS-2008NM
    James Nickel core interstage transformer for Single ended 5k:5k
  • JS-2008NM
  • N means "Nickel" Core Lamination is Nickel alley
  • M means "Nomex" isolation material
  • Fully Potted
  • B.P 5K(1:1 CT)
  • 16Hz~40KHz-2dB
  • Primary current 30mA
  • Base plate size 72 x 72mm
  • Screw holes on base plate is 59mm x 59mm center to center
  • Made in Taiwan
  • Weight :2450 (gram/pair)
  • Size (mm): 85H x 72 diameter
  • Brand : James
  • Item No: JS-2008NM
    Quantity (pair)Price (US$)
    1 - 3550.00
    4 - 19520.00
    20 or more500.00
    JS-2008NM(#647) last update on 08/Dec/2009, at 10:19 pm

    JS-2010NM
    James Nickel core pre-amp output transformer for SE 10k:600 (4:1)
  • Designed for 6SN7, 6J5 and similar tubes
  • James model JS-2010NM
  • N means "Nickel" Core Lamination is Nickel alley
  • M means "Nomex" isolation material
  • Fully Potted
  • BP 10K CT : 600 CT
  • 15Hz~38KHz-2dB
  • Primary current 20mA
  • Secondary current 110mA
  • Base plate size 72 x 72mm
  • Screw holes on base plate is 59mm x 59mm center to center
  • Made in Taiwan
  • Weight :2450 (gram/pair)
  • Size (mm): 85H x 72 diameter
  • Brand : James
  • Item No: JS-2010NM
    Quantity (pair)Price (US$)
    1 - 2550.00
    3 - 9520.00
    10 or more500.00
    JS-2010NM(#711) last update on 08/Dec/2009, at 10:19 pm

    JS-2025NL-G
    James MC step-up transformer JS-2025NL - champagne gold color
  • Perfectly match with 3, 5, 24 and 40 ohm MC phono head
  • James model JS-2025NL - champagne gold color
  • 40% Nickel Core
  • 3/5/24/40:5k ohm
  • Frequency Respond: -

  • 3:5K 5Hz~40KHz -1dB
  • 5:5K 5Hz~41KHz -1dB
  • 24:5K 8Hz~39KHz -1dB
  • 40:5K 9Hz~42KHz -1dB
  • THD: -

  • 10Hz 0.015%
  • 100Hz 0.01%
  • 1000Hz 0.01%
  • 10kHz 0.01%

  • Fully Potted
  • Factory matched pair
  • Come with inter-case mount kit
  • Screw holes on base plate is 40mm x 40mm center to center
  • Made in Taiwan
  • Weight :670 (gram/Pair)
  • Size (mm): 47 diameter x 54H
  • Brand : James
  • Item No: JS-2025NL-G
    Quantity (Pair)Price (US$)
    1 - 3295.00
    4 - 19280.00
    20 or more270.00
    JS-2025NL-G(#751) last update on 07/Jul/2010, at 4:44 pm

    JS-6123HS-B
    James output transformer for Single ended 2.5/3.5/5k - Black color version
  • JS-6123HS - black color version
  • 2.5/3.5/5k:4/8/16ohm
  • Maximum 90mA
  • Fully Potted
  • 20Hz~60KHz-2dB
  • Screw holes on base plate is 65mm x 74mm center to center
  • Made in Taiwan
  • Weight :6400 (gram/Pair)
  • Size (mm): 80 x 90 x 110H
  • Brand : James
  • Power: 20 Watt
  • Item No: JS-6123HS-B
    --Temporary Out-of-stock--
    Quantity (Pair)Price (US$)
    1 - 3200.00
    4 - 19190.00
    20 or more180.00
    JS-6123HS-B(#651) last update on 03/Aug/2010, at 11:25 am

    JS-6123HS-G
    James output transformer for Single ended 2.5/3.5/5k - champagne gold color
  • JS-6123HS - champagne gold color
  • 2.5/3.5/5k:4/8/16ohm
  • Maximum 90mA
  • Fully Potted
  • 20Hz~60KHz-2dB
  • Screw holes on base plate is 65mm x 74mm center to center
  • Made in Taiwan
  • Weight :6400 (gram/Pair)
  • Size (mm): 80 x 90 x 110H
  • Brand : James
  • Power: 20 Watt
  • Item No: JS-6123HS-G
    Quantity (Pair)Price (US$)
    1 - 3200.00
    4 - 19190.00
    20 or more180.00
    JS-6123HS-G(#722) last update on 08/Dec/2009, at 10:28 pm

    JS-6169HF-B
    James output transformer for 211/845 Single ended 10k - Black color version
  • JS-6159HF - black color version
  • Factory Matched pair
  • 10k:4/8/16ohm
  • Primary 70mA
  • Fully Potted
  • 20Hz~35KHz-2dB
  • Screw holes on base plate is 80mm x 80mm center to center
  • Made in Taiwan
  • Weight :12600 (gram/Pair)
  • Size (mm): 106 x 96 x 150H
  • Brand : James
  • Power: 50 Watt
  • Item No: JS-6169HF-B
    Quantity (Pair)Price (US$)
    1 - 3650.00
    4 - 19630.00
    20 or more620.00
    JS-6169HF-B(#750) last update on 07/Jul/2010, at 4:46 pm

    Items
    Out-of-Stock

    TS-CM04-08VA
    DA-55
    Daburu 5k+5k:5k+5k 35mA interstage transformer for serial or parallel SE
    PC-IEC-TRC
    845C Shuguang
    845A Shuguang
    211 Shuguang
    CV181 - Blue
    Dark Ebony Board
    CH-TCC-80
    025TF6350-Int
    Designed for 5U4G, 5R4, EL34 x 2, KT88 x 2 (Internal version)
    DP-250EU
    2009N
    010-FT25T-EU
    DP-250US
    KEMET F245
    050-PT25-INT
    General use Power transformer for tube Audio project
    CH-AL-27
    R0800-9999
    Custom made 800W(Maximum) R-core Power transformer (to be available)
    KB-AL30R
    VR-8W680-Tesla
    NYM 06-Purple
    RCA-805-Tool
    AL-470R-S
    AL-470 Full Aluminium chassis Round corner Large Power amplifier (Silver color version (to be available)
    JS-6123HS-B
    James output transformer for Single ended 2.5/3.5/5k - Black color version
    PSC-V807R-15
    R0080-043B-EU

    Items
    On Sale

    R0080-043
    100W R-core Power transformer (Discontinuous: To be replaced by separated EU and US version)

    VT4C STUDIO
    Correspond Address: PO BOX 70837 Kowloon Central Post Office, Hong Kong
    Warehouse: Room 1604A, Vigor Industrial Building, 14-20 Cheung Tat Road, Tsing Yi, Hong Kong
    www.vt4c.com
    FAX: (852) 2495 3415
    E-mail:sale@vt4c.com
    All informations subject to Change without note!