What is the 6922 vacuum tube?

The 6922 (6922 / E88CC) is a triode vacuum tube designed for preamp applications. Premium 6DJ8. Sought-after for hi-fi preamps..

What is a 6922 substitute or equivalent?

Direct equivalents to the 6922 include E88CC, 6DJ8, CCa. 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 6922?

Amplification factor μ ≈ 33, transconductance gm ≈ 12.5 mA/V, plate resistance rp ≈ 2.6 kΩ, max plate voltage 250 V, max plate dissipation 1.65 W, heater 6.3 V / 0.3 A.

Is the 6922 still in production?

Production status varies by year and manufacturer. The current Amperatubes catalog classifies the 6922 as Sought-after 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 6922 sound like?

Premium 6DJ8. Sought-after for hi-fi preamps.. 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

←6922

← 6900 6973 →Compare → E88CC

6922 6922 / E88CC Triode Vacuum Tube

Dual triode6.3V / 0.3A9-pin NovalSPICE

SourcePhilips/JJ E88CC datasheet (frank/pocnet)Reviewed2026-05-29StatusDataModelCalcModelNorman KorenPDF

Medium-gain triode for driver and line stage applications

Datasheet ↗SPICE

6922 / E88CC — Amperex·Philips·Siemens — triode vacuum tube — (1958)

2.6kΩ

12.5mA/V

3.1pF

1.4pF

1.75pF

GAIN33%

POWER4%

DRIVE97%

LINEARITY84%

SPECIFICATIONS

Heater6.3 V · 0.3 A

Max Plate Voltage250 V

Pa max1.65 W

Gain Factor33

gm12.5 mA/V

rp2.6 kΩ

Inter-electrode capacitances

Cgk3.1 pF

Cgp1.4 pF

Cpk1.75 pF

Pinout9-pin Noval

Era1958

RaritySought-after

HEATER6.3V / 0.3A

MAX PLATE250V / 1.65W

BASEnoval

SECTIONS2 (dual)

Source datasheets

2 manufacturer datasheets cross-checked for 6922 / E88CC

2 verified

TYPICAL OPERATING POINT

Va90V

Ia5.62mA

Vg-1.6V

Pd0.51W

RL4kΩ

Av22.2dB

EXECUTIVE SUMMARY

The 6922 (E88CC) is the premium long-life version of the 6DJ8, specified for 10,000-hour minimum lifespan versus the 6DJ8's 5,000 hours, with tighter manufacturing tolerances. It is electrically identical to the 6DJ8 but built with better materials and quality control, making it the preferred variant for critical audio applications. The E88CC designation follows the Philips/Mullard European naming convention and is the same tube. Amperex PQ (Premium Quality) and Siemens E88CC are the most desirable NOS variants, with Amperex commanding particularly high prices for genuine Holland-manufactured examples.

APPLICATIONS

Voltage amplifierPhase splitter

Audio Research SP-6 preampBAT VK-5i

• Hi-Fi stereo• Headphone amp

VS E88CC

μ 0%Rp +2%Pd +10%Full comparison →

HISTORY

Introduced1958ManufacturerAmperex·Philips·Siemens

Golden Age

6922 Datasheet

Local mirror · PDF

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METRIX TESTER

Test this tube on a Metrix

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