VTP15671-1100 - Firefly Push Pull Output Transformer 22.5k to 8 ohms 1.5 watts

Links


  • Order Code: VTP15671-1100.
  • Issue: 3.
  • Page Updated: 06 Feb 2017.
  • Change Request: X50465.
  • Release Note: Y11153.
Picture:dpc12710.jpg

Specification

  • Valve Type: ECC82 / 12AU7.
  • Primary Circuit Name: Ultra-pushpull-Univ-a.
  • Primary Circuit Type: a.
  • Secondary Circuit Name: Univ-ls-pin.
  • Secondary Circuit Type: p3815.
  • Valve Res.Load Anode (ohms): 22500.
  • Power Output (Watts): 1.5.
  • Primary Inductance (Henries): 10.
  • Construction: Interleaved Grain Oriented Core.
  • Winding: Multiple Interleaved Sections.
  • Treatment: Vacuum Varnish Impregnated.
  • Application: Push Pull Valve Power Output.
  • Range: Standard.

Mounting Arrangement

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Mechanical Dimensions

  • Size = Patt18x9/16 UC.
  • Width (W) = 1 3/4 inch(44mm).
  • Clamp Width (C) = 2 1/2 inch(64mm).
  • Depth (D) = 1 5/16 inch(33mm).
  • Height (H) = 1 7/16 inch(37mm).
  • Core (L) = 5/8 inch(16mm).
  • Fix Centres (F) = 2 1/8 inch(54mm).
  • Fix Size (FZ) = 3/16 inch(M3) .
  • Pin Length (P) = 1/4 inch(6mm).
  • Weight (WT) = To be added later.

Circuit

Picture:dpe13157.gif Picture:dpe12582.gif Picture:dpe12586.gif

Connections

Function Connection
Anode A Pin 10
Ultra Linear (Grid) 43% A Pin 1
Ultra Linear (Grid) 20% A Pin 2
Centre Tap (Ht) Pin 8
Ultra Linear (Grid) 20% B Pin 4
Ultra Linear (Grid) 43% B Pin 5
Anode B Pin 6
Output common Pin 11
Output 3 to 4 ohms Pin 12
Output 7 to 8 ohms Pin 13
Output 15 to 16 ohms Pin 14

Connection Layout

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Front

Back


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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