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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
    Mars SE output
    Tranditional Hi-End Audio Grade
  • Japan Audio Grade Z11 (0.35mm) Lamination;
  • Traditional Look with Silvery Cover;
  • Air-gapped to prevent magnetic Saturation (Interstage or Output transformer only);
  • Layered for Perfect performance;
  • Excellent Quality but very competitive price.;
  • Only large and experience factory can have that large production line!;
  • 9 Item(s) found System time: Tue 07 Sep 2010 04:35 am
    LM-2013U
    2.5k SE Output transformer
  • Single Ended Output Transformer Recommend for 2A3, 6A3, 6B4G
  • 2.5k primary.
  • 0-4/8/16ohm secondary.
  • Large 100W core!!
  • Primary 15H, DC resistance 189ohm.
  • Max. 140mA
  • Max. 750V
  • Made in China
  • Weight :1750 (gram/Each)
  • Size (mm): 79 x 65 x 89H
  • Brand : 45
  • Power: 20 Watt
  • Item No: LM-2013U
    Quantity (Each)Price (US$)
    1 - 352.00
    4 - 1946.00
    20 or more44.00
    LM-2013U(#216) last update on 26/Feb/2010, at 12:27 pm

    LM-2014U
    4.5k SE Output transformer
  • Single Ended Output transformer recommend for 45, 300B, EL34, KT66, KT88
  • 4.5k primary.
  • 0-4/8/16ohm secondary.
  • Large 100W core!!
  • 17H primary.
  • Max. 140mA
  • Max. 750V
  • Made in China
  • Weight :1750 (gram/Each)
  • Size (mm): 79 x 65 x 89H
  • Brand : 45
  • Power: 20 Watt
  • Item No: LM-2014U
    Quantity (Each)Price (US$)
    1 - 352.00
    4 - 1946.00
    20 or more44.00
    LM-2014U(#215) last update on 26/Feb/2010, at 12:27 pm

    LM-2017U
    3.5k SE Output transformer
  • Single Ended Output transformer recommend for 300B, EL84, EL34, KT66
  • 3.5k primary.
  • 0-4/8/16ohm secondary.
  • Large 100W core!!
  • 20.5H primary.
  • 270ohm primary resistance.
  • Max. 140mA
  • Max. 750V
  • Made in China
  • Weight :1750 (gram/Each)
  • Size (mm): 79 x 65 x 89H
  • Brand : 45
  • Power: 20 Watt
  • Item No: LM-2017U
    Quantity (Each)Price (US$)
    1 - 352.00
    4 - 1946.00
    20 or more44.00
    LM-2017U(#214) last update on 26/Feb/2010, at 12:27 pm

    LM-5k-25G
    5k SE (With SG) output transformer designed for KT88, KT66, 845 and 211 SE.
  • Designed for lower voltage (500-800V) Single Ended 211 or 845
  • Also good for KT88/6550/KT66, since it equiped with SG tap for ultra-linear connection 0-4-8-16ohm Secondary
  • Max 120mA
  • Large 150W core enough 30W Class A power output
  • Made in China
  • Weight :3300 (gram/Each)
  • Size (mm): 102 x 83 x 98H
  • Power: 30 Watt
  • Item No: LM-5k-25G
    Quantity (Each)Price (US$)
    1 - 385.00
    4 - 1981.00
    20 or more78.00
    LM-5k-25G(#292) last update on 26/Feb/2010, at 12:28 pm

    LM-9911U
    2.5k (with SG) output transformer designed for KT88, 6550, EL34, 845 and 300B SE.
  • 2.5k Single Ended Output for EL34
  • Also good for 300B/2A3/KT88/6550
  • 0-4-8-16ohm Secondary
  • Max 120mA
  • Large 150W core enough 30W Class A power output
  • Made in China
  • Weight :3300 (gram/Each)
  • Size (mm): 102 x 83 x 98H
  • Power: 30 Watt
  • Item No: LM-9911U
    Quantity (Each)Price (US$)
    1 - 384.00
    4 - 1981.00
    20 or more78.00
    LM-9911U(#593) last update on 26/Feb/2010, at 12:28 pm

    LM-9911U-B
    3.5k output (with SG) transformer designed for KT88, 6550, EL34, 845 and 300B SE.
  • 3.5k Single Ended Output for 300B or low voltage 845
  • Also good for KT88/6550/EL34, 0-4-8-16ohm Secondary
  • Max 120mA
  • Large 150W core enough 30W Class A power output
  • Made in China
  • Weight :3300 (gram/Each)
  • Size (mm): 102 x 83 x 98H
  • Power: 30 Watt
  • Item No: LM-9911U-B
    Quantity (Each)Price (US$)
    1 - 385.00
    4 - 1981.00
    20 or more78.00
    LM-9911U-B(#639) last update on 26/Feb/2010, at 12:31 pm

    LM-9911U-BH
    3.5k output transformer designed for KT88, 6550, EL34, 845 and 300B SE.
  • 3.5k Single Ended Output for 300B or low voltage 845
  • Also good for KT88/6550/EL34, 0-4-8-16ohm Secondary
  • Max 120mA
  • Large 150W core enough 30W Class A power output
  • Made in China
  • Weight :3300 (gram/Each)
  • Size (mm): 98 x 83 x 102H
  • Power: 30 Watt
  • Item No: LM-9911U-BH
    Quantity (Each)Price (US$)
    1 - 385.00
    4 - 981.00
    10 or more78.00
    LM-9911U-BH(#293) last update on 26/Feb/2010, at 12:29 pm

    LM-9911UH
    2.5k output transformer designed for KT88, 6550, EL34, 845 and 300B SE.
  • 2.5k Single Ended Output for EL34
  • Also good for 300B/2A3/KT88/6550
  • 0-4-8-16ohm Secondary
  • Max 120mA
  • Large 150W core enough 30W Class A power output
  • Made in China
  • Weight :3300 (gram/Each)
  • Size (mm): 98 x 83 x 102H
  • Power: 30 Watt
  • Item No: LM-9911UH
    Quantity (Each)Price (US$)
    1 - 385.00
    4 - 1981.00
    20 or more78.00
    LM-9911UH(#638) last update on 26/Feb/2010, at 12:29 pm

    LM-9913U
    10k SE Output transformer for 211/845 50W
  • Single Ended Output Transformer Recommend for 211, 845
  • 10k primary.(145mA)
  • 0-4/8/16ohm secondary.
  • Large 350W core!!
  • Primary 33H, DC resistance 185ohm.
  • Max. 200mA
  • Max. 1500V
  • Made in China
  • Weight :5900 (gram/Each)
  • Size (mm): 115 x 95 x 130H
  • Power: 50 Watt
  • Item No: LM-9913U
    Quantity (Each)Price (US$)
    1 - 3130.00
    4 - 19122.00
    20 or more116.00
    LM-9913U(#343) last update on 26/Feb/2010, at 12:30 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!