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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
    R-core Power
    High quality R-core Power transformer
  • R-core only winding on the straight portion, so that it is more linear then toroid but still keep low noise as Toroid;
  • Higher quality and better sounding than many Toroid;
  • Best cost performance as power transformer in Audio amplifier;
  • Extreme low noise and can be place in compact chassis without problem;
  • High efficiency and low heat;
  • Harder winding by labor/machine;
  • Only available in large quantity normally;
  • Custom order available, 20 pieces or more for best discount;
  • 16 Item(s) found System time: Tue 07 Sep 2010 04:11 am
    R0026-009
    50W R-core Power transformer Recommend for pre-amplifier or driver tube. Seperated PSU for driver would have excellent sonic imporvement! Try and you would be surprised.
  • 0-115V, 0-115V, International version. Can be configurate as 0-115V or 0-230V
  • 0-220V 50mA
  • 0-220V 50mA
  • 0-6.3V 0.8A
  • 0-6.3V 0.8A
  • Grounding/Screen wire
  • Very small size fit many case
  • Base mount 80 x 68mm, screw holes center to center distance 69mm x 55mm, (4mm diameter holes)
  • Made in China
  • Weight :680 (gram/Each)
  • Size (mm): 82L x 68W x 45 Thick
  • Power: 50 Watt
  • Item No: R0026-009
    Quantity (Each)Price (US$)
    1 - 322.00
    4 - 1920.00
    20 or more19.00
    R0026-009(#42) last update on 26/Feb/2010, at 11:34 am

    R0026-9999
    Custom made 40W R-core Power transformer
  • Maximum 13 leading wires
  • Very small size fit many case
  • Base mount 80 x 68mm, screw holes center to center distance 69mm x 55mm, (4mm diameter holes)
  • Made in China
  • Weight :680 (gram/Each)
  • Size (mm): 82L x 68W x 45 Thick
  • Power: 50 Watt
  • Item No: R0026-9999
    Quantity (Each)Price (US$)
    1 - 160.00
    2 - 955.00
    10 - 4925.00
    50 or more20.00
    R0026-9999(#515) last update on 08/Apr/2010, at 3:21 pm

    R0080-031
    100W R-core Power transformer designed for LSDY Tube Power supplier kit.
  • 100W power transformer 0-115V, 0-115V, International version. Can be configure as 0-115V or 0-230V
  • 300-0-300V 60mA
  • 0-6.3V 2A
  • 0-15V 2A
  • 0-12.6V 2A
  • Grounding/Screen wire
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55mm Thick
  • Power: 100 Watt
  • Item No: R0080-031
    Quantity (Each)Price (US$)
    1 - 335.00
    4 - 1933.00
    20 or more32.00
    R0080-031(#510) last update on 26/Feb/2010, at 11:33 am

    R0080-036
    100W R-core Power transformer Recommend for Single Ended tube power AMP or Mono power AMP.
  • 100W power transformer 0-115V, 0-115V, International version. Can be configure as 0-115V or 0-230V
  • 260-230-0-230-260V 120mA
  • 0-5V 3A with CT
  • 0-6.3 3A with CT
  • 0-6.3 3A with CT
  • Grounding/Screen wire
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55mm Thick
  • Power: 100 Watt
  • Item No: R0080-036
    Quantity (Each)Price (US$)
    1 - 335.00
    4 - 1933.00
    20 or more32.00
    R0080-036(#205) last update on 26/Feb/2010, at 11:34 am

    R0080-043
    100W R-core Power transformer (Discontinuous: To be replaced by separated EU and US version)
  • Recommend for EL84, ELC82, Mono block of 6A3, 2A3, 45, VT25, VT62, pre-amplifier or driver PSU
  • 0-110V-120V, 0-110V-120V, International version. Can be configure as 0-110V, 120V, 220V, 230V or 240V
  • 0-220-280V 80mA
  • 0-220-280V 80mA
  • 3.15-0-3.15V 1.5A
  • 3.15-0-3.15V 1.5A
  • 0-5-6.3V 3A (designed for Power/Rectifier Tube)
  • Grounding/Screen wire
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55 Thick
  • Power: 100 Watt
  • Item No: R0080-043
    Quantity (Each)Price (US$)
    1 - 335.00 33.00
    4 - 1933.00 32.00
    20 or more32.00
    R0080-043(#43) last update on 22/Mar/2010, at 4:30 pm

    R0080-043B-EU
    100W R-core Power transformer - European version.
  • Recommend for EL84, ELC82, Mono block of 6A3, 2A3, 45, VT25, VT62, pre-amplifier or low power amplifier
  • Primary 0-220-230-240V 50/60Hz,
  • 0-220-280V 80mA
  • 0-220-280V 80mA
  • 3.15-0-3.15V 1.5A
  • 3.15-0-3.15V 1.5A
  • 0-5-6.3V 3A (designed for Power/Rectifier Tube)
  • Grounding/Screen wire
  • Copper shielding externally
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55 Thick
  • Power: 100 Watt
  • Item No: R0080-043B-EU
    --Temporary Out-of-stock--
    Quantity (Each)Price (US$)
    1 - 336.00
    4 - 1934.00
    20 or more33.00
    R0080-043B-EU(#748) last update on 17/Aug/2010, at 4:24 pm

    R0080-043B-US
    100W R-core Power transformer - US version.
  • Recommend for EL84, ELC82, Mono block of 6A3, 2A3, 45, VT25, VT62, pre-amplifier or low power amplifier
  • Primary 0-100-110V-120V 50/60Hz,
  • 0-220-280V 80mA
  • 0-220-280V 80mA
  • 3.15-0-3.15V 1.5A
  • 3.15-0-3.15V 1.5A
  • 0-5-6.3V 3A (designed for Power/Rectifier Tube)
  • Grounding/Screen wire
  • Copper shielding externally
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55 Thick
  • Power: 100 Watt
  • Item No: R0080-043B-US
    Quantity (Each)Price (US$)
    1 - 336.00
    4 - 1934.00
    20 or more33.00
    R0080-043B-US(#747) last update on 17/Aug/2010, at 4:23 pm

    R0080-044
    100W R-core Power transformer Recommend for Single Ended tube power AMP or Mono power AMP.
  • 100W power tranformer 0-115V, 0-115V, International version. Can be configurate as 0-115V or 0-230V
  • 0-380-400V 100mA
  • 0-380-400V 100mA
  • 0-15V 2A
  • 0-5V 2A
  • 0-6.3 2A
  • 0-6.3 2A
  • Grounding/Screen wire
  • Made in China
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55mm Thick
  • Power: 100 Watt
  • Item No: R0080-044
    Quantity (Each)Price (US$)
    1 - 335.00
    4 - 1933.00
    20 or more32.00
    R0080-044(#41) last update on 26/Feb/2010, at 11:36 am

    R0080-9999
    Custom made 100W R-core Power transformer
  • Maximum 18 leading wires
  • Very small size fit many case
  • Made in China
  • Base mount 85 x 110mm, screw holes center to center distance 70mm x 90mm, (5.5 x 11mm holes)
  • Weight :1500 (gram/Each)
  • Size (mm): 120L x 90W x 55 Thick
  • Power: 100 Watt
  • Item No: R0080-9999
    Quantity (Each)Price (US$)
    1 - 385.00
    4 - 978.00
    10 - 1938.00
    20 or more32.00
    R0080-9999(#516) last update on 26/Feb/2010, at 11:43 am

    R0100-9999
    Custom made 120W R-core Power transformer
  • Maximum 20 leading wires
  • Very small size fit many case
  • Made in China
  • Weight :1800 (gram/Each)
  • Size (mm): 120L x 105W x 55 Thick
  • Power: 120 Watt
  • Item No: R0100-9999
    Quantity (Each)Price (US$)
    1 - 3100.00
    4 - 993.00
    10 - 1946.00
    20 or more38.00
    R0100-9999(#690) last update on 26/Feb/2010, at 11:40 am

    R0120-9999
    Custom made 140W R-core Power transformer
  • Maximum 20 leading wires
  • Very small size fit many case
  • Made in China
  • Weight :2000 (gram/Each)
  • Size (mm): 135L x 110W x 60 Thick
  • Power: 140 Watt
  • Item No: R0120-9999
    Quantity (Each)Price (US$)
    1 - 3115.00
    4 - 9108.00
    10 - 1960.00
    20 or more52.00
    R0120-9999(#691) last update on 26/Feb/2010, at 11:39 am

    R0160-9999
    Custom made 180W R-core Power transformer
  • Custom made base on your provided specification
  • Maximum 22 leading wires
  • Made in China
  • Weight :2550 (gram/Each)
  • Size (mm): 115L x 138W x 60Thick
  • Power: 180 Watt
  • Item No: R0160-9999
    Quantity (Each)Price (US$)
    1 - 3125.00
    4 - 9115.00
    10 - 1975.00
    20 or more65.00
    R0160-9999(#577) last update on 20/Jul/2009, at 5:11 pm

    R0260-037
    280W R-core Power transformer - Design for 2A3 x 2 Also good for EL84 x 2; 45 / 46 / 47 x 2; PX25 x 2
  • 0-110V-120, 0-110V-120, International version. Can be configured as 110V, 220V, 230V and 240V for worldwide
  • 0-280-320V 220mA
  • 0-280-320V 220mA
  • 75-0-75 100mA
  • 3.15-0-3.15V 2A (design for driver tube)
  • 1.25-0-1.25V 3A (design for 2A3 or 45)
  • 1.25-0-1.25V 3A (design for 2A3 or 45)
  • 0-5-6.3V 4A (design for 300B, PX25, Power Pentode or Rectifier Tube)
  • 0-4-5V 4A (design for 300B or Rectifier Tube)
  • Copper screening covering sheet
  • Grounding/Screen wire
  • All wire 400mm long for easy reach any point inside chassis
  • Base mount 151 x 112mm, screw holes center to center distance 129mm x 95mm, (5mm diameter holes)
  • Made in China
  • Weight :3400 (gram/Each)
  • Size (mm): 151L x 121W x 70mm Thick
  • Power: 260 Watt
  • Item No: R0260-037
    Quantity (Each)Price (US$)
    1 - 380.00
    4 - 1976.00
    20 or more73.00
    R0260-037(#207) last update on 04/Aug/2009, at 10:39 pm

    R0260-038
    280W R-core Power transformer - Design for 300B x 2 Also good for EL34 x 2; KT66 x 2; 6550 x 2
  • 0-110V-120, 0-110V-120, International version. Can be configured as 110V, 120V, 220V, 230V and 240V for worldwide
  • 0-360-400V 200mA
  • 0-360-400V 200mA
  • 90-0-90V 100mA
  • 3.15-0-3.15V 1A (design for driver tube)
  • 2.5-0-2.5V 2A (design for 300B or GZ34)
  • 2.5-0-2.5V 2A (design for 300B or GZ34)
  • 0-5-6.3V 4A (design for Power Pentode or Rectifier Tube)
  • Copper screening covering sheet
  • Grounding/Screen wire
  • All wire 400mm long for easy reach any point inside chassis
  • Base mount 151 x 112mm, screw holes center to center distance 129mm x 95mm, (5mm diameter holes)
  • Made in China
  • Weight :3400 (gram/Each)
  • Size (mm): 151L x 121W x 70mm Thick
  • Power: 260 Watt
  • Item No: R0260-038
    Quantity (Each)Price (US$)
    1 - 380.00
    4 - 1976.00
    20 or more73.00
    R0260-038(#206) last update on 04/Aug/2009, at 10:39 pm

    R0260-9999
    Custom made 280W(Maximum) R-core Power transformer
  • Maximum 28 leading wires
  • Base mount 151 x 112mm, screw holes center to center distance 129mm x 95mm, (5mm diameter holes)
  • Made in China
  • Weight :3400 (gram/Each)
  • Size (mm): 151L x 121W x 70mm Thick
  • Power: 260 Watt
  • Item No: R0260-9999
    Quantity (Each)Price (US$)
    1 - 3160.00
    4 - 9145.00
    10 - 1980.00
    20 or more75.00
    R0260-9999(#517) last update on 04/Aug/2009, at 10:40 pm

    R0800-9999
    Custom made 800W(Maximum) R-core Power transformer (to be available)
  • Maximum 28 leading wires
  • Made in China
  • Weight :8500 (gram/Each)
  • Power: 800 Watt
  • Item No: R0800-9999
    --Temporary Out-of-stock--
    Quantity (Each)Price (US$)
    1 - 3420.00
    4 - 9380.00
    10 - 19250.00
    20 or more230.00
    R0800-9999(#756) last update on 20/May/2010, at 2:31 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!