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6BQ5

Name: Mullard 6BQ5
Brand: Mullard

Mullard

1953 – Present

AnalogVacuum Tubes

Estimated price (community-sourced)

$32

About the 6BQ5

The Mullard 6BQ5 is the American designation for the EL84 vacuum tube, originally produced by Mullard in Great Britain. This miniature pentode with equipotential cathode was designed for low-frequency power amplification in HiFi audio output stages. Famous for black plates, carbonized screens, and gold-plated grids in original versions, Mullard 6BQ5 tubes deliver exceptional audio quality with creamy highs, great headroom, and dynamic response. They powered classic 1960s HiFi amplifiers and remain sought-after for vintage restorations and boutique amps. New production reissues from Russia (New Sensor) replicate the original sound characteristics. Direct substitutes include EL84, 6P14P, and compatible with 7189 in many circuits (check ratings).

Specifications

Key Specifications

Power: 5.7W

Full structured specifications are available to members.

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