ELECTRO-HARMONIX 300B Tubes Triodes (Matched Pair)

ELECTRO-HARMONIX 300B Tubes Triodes (Matched Pair)
The Electro-Harmonix 300B tube offers long life, high quality design and incredible sonic capabilities. Like the original Western Electric 300B, it features a direct heated 8-track filament with 40W plate dissipation and a large glass.

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Reference : 15985
New product

219,00 €tax incl.

182,50 € tax excl.
Including 0,05 € for green tax

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Shipping date: 04-10-2024.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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3 >Month warranty
 
More info

Electro-Harmonix 300B

Tubes Triodes Platinum Matched (Matched pair)

Electro-Harmonix 300B Tubes Triodes Platinum Matched (Paire appairée)

The Electro-Harmonix 300B tube offers long life, high quality design and incredible sonic capabilities. Like the original Western Electric 300B, it features a direct heated 8-track filament with 40W plate dissipation and a large glass. The 300B's plate curves and DC static characteristics also match those of the original, ensuring excellent performance.

The Electro-Harmonix 300B tube is sold here as a matched pair, to ensure the best possible performance.

Electro-Harmonix 300B Tubes Triodes Platinum Matched (Paire appairée) Electro-Harmonix 300B Tubes Triodes Platinum Matched (Paire appairée)

Technical characteristics

Specifications
Product typeTubes
Tube typeTriode
Number of pins4
DimensionsØ61.5 x 152mm
Electrical parameters
ParameterConditionMin.Max.
Heater current-1.1A1.4A
Grid reverse currentFilament voltage = 5V
Plate voltage = 450V
Grid voltage minus = 97V
Resistance in grid circuit = 0.51MΩ
-1µA
Plate currentFilament voltage = 5V
Plate voltage = 303V
Grid voltage minus = 58V
45mA90mA
Amplification factorFilament voltage = 5V
Plate voltage = 303V
Grid voltage minus = 58V
3-
Dissipation factorFilament voltage = 5V
Plate voltage = 303V
Grid voltage minus = 58V
Plate circuit resistance = 2.4kΩ
-10%
Output powerFilament voltage = 5V
Plate voltage = 303V
Grid voltage minus = 58V
Plate circuit resistance = 2.4kΩ
5.5W-
Limit values
ParameterMin.Max.
Filament voltage4.5V5.5V
Plate voltage-450V
Cathode current-100V
Power dissipation at the plate of each triode-40W
Grid voltage, negative-220V
Grid circuit resistance-Fixed bias : 0.51MΩ
Self bias : 1MΩ
Temperature at the most heated part of the envelope-473K°
 
Data sheet
Contacts numberN/A
Tube typeN/A
 
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ELECTRO-HARMONIX 300B Tubes Triodes (Matched Pair)
The Electro-Harmonix 300B tube offers long life, high quality design and incredible sonic capabilities. Like the original Western Electric 300B, it...

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