What is the 6N6P vacuum tube?

The 6N6P is a triode vacuum tube designed for line / otl applications. Low Rp driver. OTL capable..

What is a 6N6P substitute or equivalent?

Direct equivalents to the 6N6P include ECC99 / E182CC (Western near-equivalents). 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 6N6P?

Amplification factor μ ≈ 22, transconductance gm ≈ 11.2 mA/V, plate resistance rp ≈ 1.8 kΩ, max plate voltage 300 V, max plate dissipation 4.8 W, heater 6.3 V / 0.75 A.

Is the 6N6P still in production?

Production status varies by year and manufacturer. The current Amperatubes catalog classifies the 6N6P 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 6N6P sound like?

Low Rp driver. OTL capable.. 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.

6N6P Triode Vacuum Tube

Also known as ECC99 · E182CC (Western near-equivalents)

Medium-gain triode for driver and line stage applications

Dual triodeHeater 6.3 V · 0.75 A9-pin Noval2 sectionsReflektor 1970

Plate dissipation: 4.8W
Max plate voltage: 300V
Amplification factor: 22
Transconductance: 11.2mA/V
Plate resistance: 1.8kΩ

6N6P

Characteristics

Datasheet values, once each. Every value cites its sheet.

HeaterIndirectly heated

Specifications of 6N6P — Heater
Heater voltageVh	6.3 V
Heater currentIh	0.75 A

Limiting valuesDatasheet maximum ratings — not to be exceeded

Specifications of 6N6P — Limiting values
Plate voltageVa max	300 V
Plate dissipationPa max	4.8 W

Mechanical

Specifications of 6N6P — Mechanical
Base	9-pin Noval
Rarity	Moderate
Pinout

Small signalDatasheet parameters at the reference operating point — not limits

Specifications of 6N6P — Small signal
Transconductance	11.2 mA/V
Plate resistance	1.8 kΩ
Amplification factor	22

Capacitances

Specifications of 6N6P — Capacitances
Grid–cathode	4.4 pF
Grid–plate	3.5 pF
Plate–cathode	1.7 pF

Charactereditorial reading, not a measurement

Specifications of 6N6P — Character
Gain	22%
Power	12%
Drive	98%
Linearity	89%

datasheet cited · model or editorial reading · catalogue value, no citation attached yet · nothing invented

Typical operation

Canonical operating pointModel

B+: 200 V
Load: 5 kΩ
Va: 120 V
Ia: 17.23 mA
Vg: -4 V
Pd: 2.07 W
Gain: 21.5 dB

At Q: Norman Koren
μ: 16.7
gm: 7.77 mA/V
rp: 2.2 kΩ

Design a stage →

Using this tube

Applications

Headphone output
Phase splitter

Generic triode line / otl stage

Headphone amp

Replace or compare

Sources

By Jean-Michel Falligan DevergneReviewed May 29, 2026Source : Soviet-Tubes 6Н6П datasheetActive model : Norman Koren

Manufacturer datasheets

1 manufacturer datasheets cross-checked for 6N6P1 verified

6N6P DatasheetLocal mirror · PDF

SPICE models

Revision and verification status

Source: Soviet-Tubes 6Н6П datasheet
Reviewed: 2026-05-29
Status: DataModelCalc
Model: Norman Koren

Context

The 6N6P is a dual indirectly-heated triode from Reflektor, introduced around 1970. It provides a gain factor (μ) of 22 with 1800Ω plate resistance. Commonly used in line / otl applications. Low Rp driver. OTL capable.

History

Introduced: 1970
Manufacturer: Reflektor
Era: Late Production

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