VTP13308-1440 - EL34 25watt 3Hz Sub-Woofer Output Transformer

Links

  • Order Code: VTP13308-1440.
  • Issue: 1.
  • Page Updated: 22 Feb 2011.
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Specification

  • Valve Type: EL34.
  • Primary Circuit Type: Ultra-Linear-43%.
  • Secondary Circuit Type: Std_7.5_to_8_Ohms.
  • Valve Res.Load Anode (ohms): 3500.
  • Power Output (Watts): 25.
  • Primary Inductance (Henries): 100.
  • Construction: Interleaved Grain Oriented Core.
  • Winding: Multiple Interleaved Sections.
  • Treatment: Vacuum Varnish Impregnated.
  • Application: Ultra Linear Push Pull Valve Power Output.
  • Range: Standard.

Mounting Arrangement

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Mechanical Dimensions

  • Size (SZ) = Patt248x1 3/4 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.

Circuit

Picture:dpe12732.gif Picture:dpe12582.gif Picture:dpe12722.gif

Connections

Function Connection
Anode A Brown wire
Ultra Linear (Grid) 43% A Red wire
Ultra Linear (Grid) 20% A Orange wire
Ultra Linear (Grid) 20% B Green wire
Ultra Linear (Grid) 43% B Blue wire
Anode B Mauve wire
Output 3 to 4 ohms Blue sleeved wire
Output 7 to 8 ohms Brown sleeved wire

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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