What is the 6E6P vacuum tube?

The 6E6P (6E6P / 6Э6П) is a tetrode vacuum tube designed for driver / power applications. Frame-grid tetrode. Long-life audiophile variant..

What is a 6E6P substitute or equivalent?

Direct equivalents to the 6E6P include 6E5P. These share the same pinout and operating envelope, so they can usually be swapped without circuit changes — though batch-to-batch variations between manufacturers (NOS vs current production) may shift the sonic character noticeably.

What are the key specifications of the 6E6P?

Amplification factor μ ≈ 30, transconductance gm ≈ 29.5 mA/V, plate resistance rp ≈ 15.0 kΩ, max plate voltage 285 V, max plate dissipation 8.25 W, heater 6.3 V / 0.61 A.

Is the 6E6P still in production?

Production status varies by year and manufacturer. The current Amperatubes catalog classifies the 6E6P as Moderate availability. NOS (new-old-stock) examples from RCA, Mullard, Tung-Sol, GE, Sylvania and Telefunken trade among collectors; modern production where it exists comes mostly from JJ Electronic, Electro-Harmonix, Tung-Sol (New Sensor), Genalex, and a handful of small-batch makers.

What does the 6E6P sound like?

Frame-grid tetrode. Long-life audiophile variant.. Sonic character also depends heavily on the circuit operating point, the surrounding tubes in the stage, and the output transformer when present — use the interactive loadline calculator on this page to explore the trade-offs.

By Jean-Michel Falligan Devergne · Reviewed May 29, 2026

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← 6E5P 6EM7 →Compare → 6E5P

6E6P 6E6P / 6Э6П Tetrode Vacuum Tube

Tetrode6.3V / 0.61A9-pin Noval

SourceReflektor 6Э6П datasheet via Bartola ValvesReviewed2026-05-29StatusDataModelCalcModelunder reviewPDF

Beam power tetrode rated at 8.25W for high-power output stages

Datasheet ↗

6E6P / 6Э6П — Reflector — tetrode vacuum tube — (1962)

15.0kΩ

29.5mA/V

22.0pF

0.1pF

5.90pF

GAIN30%

POWER21%

DRIVE85%

LINEARITY85%

SPECIFICATIONS

Heater6.3 V · 0.61 A

Max Plate Voltage285 V

Pa max8.25 W

Gain Factor30

gm29.5 mA/V

rp15.0 kΩ

Inter-electrode capacitances

Cgk22 pF

Cgp0.05 pF

Cpk5.9 pF

Pinout9-pin Noval

Era1962

RarityModerate

HEATER6.3V / 0.61A

MAX PLATE285V / 8.25W

BASEnoval

Source datasheets

1 manufacturer datasheets cross-checked for 6E6P / 6Э6П

1 verified

EXECUTIVE SUMMARY

The 6E6P is a indirectly-heated beam tetrode from Reflector, introduced around 1962. It provides a gain factor (μ) of 30 with 15.0kΩ plate resistance. Commonly used in driver / power applications. Frame-grid tetrode. Long-life audiophile variant.

VS 6E5P

Rp +88%Pd -1%Full comparison →

HISTORY

Introduced1962ManufacturerReflector

Late Production

6E6P Datasheet

Frank's Electron Tube Pages · PDF

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METRIX TESTER

Test this tube on a Metrix

SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.

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