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7591A Tungsol

7591A Tungsol

R 900.00 ZAR
R 900.00 ZAR
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The Tung-Sol 7591A is a current-production beam power tetrode vacuum tube designed as a faithful replica of the rare vintage NOS (New Old Stock) 7591/7591A. [1, 2]
Overview & Specifications
Tube Type: Beam power tetrode / pentode with an 8-pin octal base. [1, 2]
Country of Origin: Russia (manufactured by New Sensor / Electro-Harmonix family). [1, 2]
Key Electrical Parameters:
  • Filament Voltage: 6.3V (Heater current ~0.7–0.9A)
  • Maximum Plate Dissipation: 19.0 Watts
  • Maximum Screen Dissipation: 3.3 Watts
  • Maximum Plate Voltage: 440 Volts
  • Transconductance: ~10,200 μmhos [1, 2, 3]
Sound & Performance: Known for smooth, punchy tonal qualities, a detailed soundstage, rich mid-range warmth, and very stable bias characteristics. [1, 2, 3]
Common Applications & Compatibility
The Tung-Sol 7591A is widely used in vintage Hi-Fi home audio receivers and amplifiers, as well as vintage guitar amplifiers: [1, 2]
Hi-Fi Brands/Models:

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Product Product subtotal Quantity Price Product subtotal
7591A Tungsol
7591A Tungsol
7591A Tungsol
R 900.00/ea		 R 0.00
R 900.00/ea R 0.00