HT Transformers for Valve Amplifiers.

Links

[U-Clamp Style] [Frame Style] [Drop-Through Style] [Shroud with Feet Style] [HT transformers]
U-Clamp Frame Drop-Through Shroud with Feet HT Transformers

  • Page Updated 31 Jan 2010.

  • A range of HT (High Tension)Transformers optimised for Valve Equipment.
  • Circuit options include:
    • Bridge Rectifier.
    • Full Wave Rectifier.
    • Heater Secondaries.
    • Vibrator Input.

  • Models suitable for Solid State or Valve Rectifiers.
  • Some models are available in 'Magnetics kits' with better prices for a set of magnetics.
  • Low flux density for low distortion and low external magnetic fields.
  • Professional quality materials.
  • Varnish Impregnated for Low Acoustic noise.
  • Compliant with current safety requirements.
  • Special versions made to order.
  • Several styles available for most designs.
  • Transformers identified as Double Insulated may be used without Earth connections to reduce Ground Hum Loops.


Order Codes and Datasheet Links

Order Code Description Clamp Frame Drop Through Metal Shroud with Feet
VTH101 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Bridge rectifier 265 VRMS 180mA DC
VTH102 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 265-0-265 VRMS 180mA DC
U clamp not available for this size
VTH103 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 265-0-265 VRMS 180mA DC
Heater 6.3 VRMS C-Tap 4 Amp
U clamp not available for this size
VTH104 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 265-0-265 VRMS 180mA DC
Heater 6.3 VRMS C-Tap 4 Amp
Rectifier Heater 0-4-5-6.3 VRMS 2 Amp
U clamp not available for this size
VTH105 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 190-0-190 VRMS 65mA DC
Heater 6.3 VRMS 2 Amp
VTH106 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Bridge rectifier 300 VRMS 180mA DC
U clamp not available for this size
VTH107 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 300-0-300 VRMS 125mA DC
Heater 6.3 Volts Centre tapped 3.1 Amp
Heater 6.3 Volts 1 Amp
Suitable for Mullard 5-10 mono amplifier
U clamp not available for this size
VTH108 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 350-0-350 VRMS 150mA DC
U clamp not available for this size
VTH110 range
Available while stocks last.
Superseded by VTH122
Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 410-0-410 VRMS 200mA DC
Heater 6.3 Volts Centre tapped 3 Amp
Heater 6.3 Volts Centre tapped 2 Amp
Rectifier heater 5 Volts 2 Amps
Suitable for Mullard 5-20 mono amplifier
U clamp not available for this size
VTH111 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave 300-0-300 VRMS 160mA DC
Heater 6.3 Volts Centre tapped 2 Amp
Heater 6.3 Volts 1 Amp
Suitable for Mullard 3-3 stereo amplifier
U clamp not available for this size
VTH112 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 300-0-300 VRMS 80mA DC
Heater 6.3 Volts C-Tap 1 Amp
Heater 6.3 Volts 1 Amp
Suitable for Mullard 3-3 mono amplifier
VTH114 range
Available while stocks last.
Superseded by VTH134
Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 410-0-410 VRMS 400mA DC
Heater 6.3 Volts Centre tapped 6 Amp
Heater 6.3 Volts Centre tapped 2 Amp
Rectifier heater 5 Volts 2 Amps
Suitable for Mullard 5-20 stereo amplifier
U clamp not available for this size
VTH115 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 300-0-300 VRMS 250mA DC
Heater 6.3 Volts C-Tap 6.2 Amp
Heater 0-5 Volts 2.3 Amps (GZ32) or 0-6.3 Volts 2 Amps (2 x EZ81)
Suitable for Mullard 5-10 stereo amplifier
U clamp not available for this size
VTH116 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 350-0-350 VRMS 250mA DC
Heater 6.3 VRMS C-Tap 7 Amp
U clamp not available for this size
VTH117 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 350-0-350 VRMS 250mA DC
Heater 6.3 VRMS C-Tap 7 Amp
Rectifier Heater 0-4-5-6.3 VRMS 2 Amp
U clamp not available for this size
VTH118 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave 65-0-65 VRMS 50mA DC
Rectify(Silicon) and smooth for 90 V DC HT
Filament 1.5-0-1.5 VRMS 300mA
Rectify(Silicon) & Smooth For 1.4 Volt Valves
VTH119 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 65-0-65 VRMS 50mA DC
Rectify(Silicon) and smooth for 90 V DC HT
Filament 5.8-0-5.8 VRMS 80mA
Rectify(Silicon) & Smooth For Series of four 1.4 Volt Valves
VTH121 range Mains 240 only 50/60Hz
Double Insulated
Full Wave rectifier 125-0-125 VRMS 20mA DC
Heater 6.3V Heater 1.2A (not centre tapped as data sheet says)
Suitable for Phono Pre-amps etc
VTH122 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 410-260-0-260-410 VRMS 200mA DC
Heater 6.3 Volts Centre tapped 6 Amp
Heater 6.3 Volts Centre tapped 2 Amp
Rectifier heater 5 Volts 2 Amps
Suitable for Mullard 5-20 mono amplifier
With extra 260 volt taps for auxiliary rectifier (for pre-amp etc)
U clamp not available for this size
VTH126 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Optimised for Isolating AC/DC amplifiers and radios
AC Output 240 VRMS 180mA RMS or DC
U clamp not available for this size
VTH128 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave rectifier 250-0-250 VRMS 80mA DC
Heater 6.3 Volts C-Tap 2 Amp
Heater 6.3 Volts 1 Amp
Suitable for Mullard 3 Valve (2x ECL82 1x EZ80) stereo amplifier
U clamp not available for this size
VTH133 range Mains 10-0-200-220-240 50/60Hz
Double Insulated
Full Wave 250-0-250 VRMS 50mA DC
or Half Wave 500 VRMS 30mA
Filament 6.3 centre-tap 1.5 A RMS
For Low power Amps. Preamps or Experimental Use
VTH134 range Mains 10-0-200-220-240 50/60Hz
Full Wave rectifier 410-260-0-260-410 VRMS 400mA DC
Heater 6.3 Volts Centre tapped 6 Amp
Heater 6.3 Volts Centre tapped 2 Amp
Rectifier heater 5 Volts 2 Amps
Suitable for Mullard 5-20 stereo amplifier
With extra 260 volt taps for auxiliary rectifier (for pre-amp etc)
U clamp not available for this size

© 2009 Variable Voltage Technology Ltd. Document Number DCW12704.