VTH18720-1440 - Mullard 3-3 mono HT Transformer

Links


  • Order Code: VTH18720-1440.
  • Issue: 1.
  • Page Updated: 10 Apr 2017.
  • Change Request: X50480.
  • Release Note: Y11248.
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Specification

  • Primary: 10-0-200-220-240 VRMS 50/60Hz.
  • Output: 300-0-300 VRMS 80mA 6.3ct 1A 6.3v 1A For Mullard 3-3.
  • 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) = Patt196x1/1/8 FS.
  • Width (W) = 2 7/8 inch(73mm).
  • Depth (D) = 3 1/8 inch(79mm).
  • Height (H) = 3 3/8 inch(86mm).
  • Fix Centres (FWxFD) = 2 1/4 x 2 inch(57mm x 51mm).
  • Fix Size (FZ) = 3/16 inch(M4).
  • Weight (WT) = 3lb 10oz(1.3KG).

Circuit

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Connections

Function Connection
10 Volts Mauve wire
0 Volts Blue wire
200 Volts Yellow wire
220 Volts Orange wire
240 Volts Red wire
HT Anode A Red wire (A)
HT Centre(Ground) Black wire
HT Anode B Red wire (B)
Rectifier Filament A Brown+Brown marker wire (A)
Rectifier Filament B Brown+Red marker wire (B)
Heater A Blue+Blue marker wire (A)
Heater Centre Black+Blue marker wire
Heater B Blue+Red marker 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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