What is the 6N2P vacuum tube?

The 6N2P (6N2P-EV) is a triode vacuum tube designed for preamp applications. Russian 12AX7..

What is a 6N2P substitute or equivalent?

Direct equivalents to the 6N2P include 12AX7 (approx). 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 6N2P?

Amplification factor μ ≈ 100, transconductance gm ≈ 2.25 mA/V, plate resistance rp ≈ 44.4 kΩ, max plate voltage 300 V, max plate dissipation 1 W, heater 6.3 V / 0.34 A.

Is the 6N2P still in production?

Production status varies by year and manufacturer. The current Amperatubes catalog classifies the 6N2P as Common 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 6N2P sound like?

Russian 12AX7.. 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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6N2P 6N2P-EV Triode Vacuum Tube

Dual triode6.3V / 0.34A9-pin NovalSPICE

SourceReflektorReviewed2026-05-29StatusDataModelCalcModelNorman KorenPDF

High-gain dual triode — the standard for guitar and hi-fi preamps

Datasheet ↗SPICE

6N2P-EV — Reflektor — triode vacuum tube — (1960)

100

44.4kΩ

2.3mA/V

2.3pF

0.7pF

2.30pF

GAIN100%

POWER3%

DRIVE56%

LINEARITY50%

SPECIFICATIONS

Heater6.3 V · 0.34 A

Max Plate Voltage300 V

Pa max1 W

Gain Factor100

gm2.25 mA/V

rp44.4 kΩ

Inter-electrode capacitances

Cgk2.25 pF

Cgp0.7 pF

Cpk2.3 pF

Pinout9-pin Noval

Era1960

RarityCommon

HEATER6.3V / 0.34A

MAX PLATE300V / 1W

BASEnoval

SECTIONS2 (dual)

Source datasheets

1 manufacturer datasheets cross-checked for 6N2P-EV

1 verified

TYPICAL OPERATING POINT

Va180V

Ia0.74mA

Vg-1.59V

Pd0.13W

RL220kΩ

Av38.3dB

EXECUTIVE SUMMARY

The 6N2P is a dual indirectly-heated triode from Reflektor, introduced around 1960. It provides a gain factor (μ) of 100 with 44.4kΩ plate resistance. Commonly used in preamp applications. Russian 12AX7.

APPLICATIONS

Voltage amplifierHigh-gain preampPhase splitter

Generic triode preamp stage

• Hi-Fi stereo• Headphone amp• Studio/recording

HISTORY

Introduced1960ManufacturerReflektor

Late Production

6N2P Datasheet

Frank's Electron Tube Pages · PDF

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METRIX TESTER

Test this tube on a Metrix

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