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Links
- Order Code: VTP12186-1440.
- Issue: 3.
- Page Updated: 30 Dec 2010.
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Specification
- Valve Type: EL91.
- Primary Circuit Type: Ultra-pushpull-Univ.
- Secondary Circuit Type: Univ-ls.
- Valve Res.Load Anode (ohms): 24000.
- Power Output (Watts): 4.
- Primary Inductance (Henries): 10.
- Construction: Interleaved Grain Oriented Core.
- Winding: Multiple Interleaved Sections.
- Treatment: Vacuum Varnish Impregnated.
- Application: Ultra Linear Push Pull Valve Power Output.
- Range: Standard.
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Mounting Arrangement
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Mechanical Dimensions
- Size (SZ) = Patt35x1 FS.
- Width (W) = 1 15/16 inch (49mm).
- Depth (D) = 2 7/16 inch (62mm).
- Height (H) = 2 5/16 inch (59mm).
- Fix Centres (FWxFD) = 1 3/8 inch x 1 5/8 inch (35mm x 43mm).
- Fix Size (FZ) = 5/32 inch (M3).
- Weight (WT) = To be added later.
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Circuit
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Connections
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Function
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Connection
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Anode A
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Brown wire
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Ultra Linear (Grid) 43% A
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Red wire
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Ultra Linear (Grid) 20% A
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Orange wire
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Centre Tap (Ht)
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Yellow wire
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Ultra Linear (Grid) 20% B
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Green wire
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Ultra Linear (Grid) 43% B
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Blue wire
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Anode B
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Mauve wire
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Output common
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Black sleeved wire
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Output 3 to 4 ohms
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Blue sleeved wire
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Output 7 to 8 ohms
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Brown sleeved wire
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Output 15 to 16 ohms
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Red sleeved wire
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Connection Layout
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Below
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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.
© 2010 Variable Voltage Technology Ltd
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