VTH14757-1440 - Mullard 5-20 stereo HT Transformer with extra Taps


  • Order Code: VTH14757-1440.
  • Issue: 2.
  • Page Updated: 07 Feb 2017.
  • Change Request: X50465.
  • Release Note: Y11169.


  • Primary: 10-0-200-220-240 VRMS 50/60Hz.
  • Output: 410-260-0-260-410 VRMS 400mA DC 6.3ct 6A 6.3ct 3A 5v 2A.
  • Construction: Iron Laminated. Double insulated.
  • Treatment: Vacuum Varnish Impregnated.
  • Application: HT Anode and Heater supplies.
  • Range: Standard.

Mounting Arrangement


Mechanical Dimensions

  • Size (SZ) = Patt248x2 FS FL.
  • Width (W) = 4 3/8 inch (111mm).
  • Depth (D) = 5 inch (127mm).
  • Height (H) = 5 1/4 inch (133mm).
  • Fix Centres (FWxFD) = 3 5/8 x 3 inch (92mm x 76mm).
  • Fix Size (FZ) = 1/4 inch (M6).
  • Weight (WT) = *To be added later.


Picture:dpe12581.gif Picture:dpe12582.gif Picture:dpe12773.gif


Function Connection
HT Anode A Red wire (A)
HT Tap A Orange wire (A)
HT Centre(Ground) Black wire
HT Tap B Orange wire (B)
HT Anode B Red wire (B)
Rectifier Filament A Brown sleeved wire (A)
Rectifier Filament B Brown sleeved wire (B)
Heater A Blue sleeved wire (A)
Heater Centre Black sleeved wire
Heater B Blue sleeved wire (B)
Heater 2 A Green sleeved wire (A)
Heater 2 Centre Black sleeved wire
Heater 2 B Green sleeved wire (B)

Connection Layout

Picture:dpm14579.gif Picture:dpm14578.gif


Application Notes

  • Safety note: Warning. This part may be connected to high voltage. Disconnect then discharge for 5 minutes before working on circuit.
  • See also Links on Left of this page.

© 2017 Variable Voltage Technology Ltd