VTH14757-1340 - Mullard 5-20 stereo HT Transformer with extra Taps

Links


  • Order Code: VTH14757-1340.
  • Issue: 2.
  • Page Updated: 07 Feb 2017.
  • Change Request: X50465.
  • Release Note: Y11169.
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Specification

  • 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

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Mechanical Dimensions

  • Size (SZ) = Patt248x2 DT.
  • Width (W) = 5 3/8 inch (137mm).
  • Depth (D) = 4 1/2 inch (114mm).
  • Height Above (HA) = 3 1/2 inch (89mm).
  • Height Below (HB) = 1 1/4 inch (32mm).
  • Fix Centres (FWxFD) = 4 3/8 x 3 1/2 (111mm x 89mm).
  • Cutout Hole (CWxED) = 3 1/4 x 3 5/8 inch (83mm x 93mm) ES.
  • Fix Size (FZ) = 1/4 inch (M6).
  • Weight (WT) = *To be added later.

Circuit

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

Connections

Function Connection
HT Anode A Red wire (A) 15
HT Tap A Orange wire (A) 15
HT Centre(Ground) Black wire 15
HT Anode B Orange wire (B) 15
HT Tap B Red wire (B) 15
Rectifier Filament A Brown sleeved wire (A) 13
Rectifier Filament B Brown sleeved wire (B) 13
Heater A Blue sleeved wire (A) 11
Heater Centre Black sleeved wire 11
Heater B Blue sleeved wire (B) 11
Heater 2 A Green sleeved wire (A) 12
Heater 2 Centre Black sleeved wire 12
Heater 2 B Green sleeved wire (B)
Heater 2 B Green sleeved wire (B) 12
Heater 2 B Green sleeved wire (B)

Connection Layout

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Below


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.

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