What is the 6N23P vacuum tube?

The 6N23P (6N23P-EV) is a triode vacuum tube designed for preamp applications. Military E88CC..

What is a 6N23P substitute or equivalent?

Direct equivalents to the 6N23P include 6922, E88CC. 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 6N23P?

Amplification factor μ ≈ 34, transconductance gm ≈ 12.7 mA/V, plate resistance rp ≈ 2.9 kΩ, max plate voltage 300 V, max plate dissipation 1.8 W, heater 6.3 V / 0.31 A.

Is the 6N23P still in production?

Production status varies by year and manufacturer. The current Amperatubes catalog classifies the 6N23P 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 6N23P sound like?

Military E88CC.. 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

←6N23P

← 6N1P 6N2P →Compare → 6922

6N23P 6N23P-EV Triode Vacuum Tube

Dual triode6.3V / 0.31A9-pin NovalSPICE

SourceSoviet-Tubes 6Н23П-ЕВ · MV Audio LabsReviewed2026-05-29StatusDataModelCalcModelNorman KorenPDF

Medium-gain triode for driver and line stage applications

Datasheet ↗SPICE

6N23P-EV — Reflektor — triode vacuum tube — (1965)

2.9kΩ

12.7mA/V

3.6pF

1.6pF

0.18pF

GAIN34%

POWER5%

DRIVE97%

LINEARITY83%

SPECIFICATIONS

Heater6.3 V · 0.31 A

Max Plate Voltage300 V

Pa max1.8 W

Gain Factor34

gm12.7 mA/V

rp2.9 kΩ

Inter-electrode capacitances

Cgk3.6 pF

Cgp1.55 pF

Cpk0.18 pF

Pinout9-pin Noval

Era1965

RarityModerate

HEATER6.3V / 0.31A

MAX PLATE300V / 1.8W

BASEnoval

SECTIONS2 (dual)

Source datasheets

1 manufacturer datasheets cross-checked for 6N23P-EV

1 verified

TYPICAL OPERATING POINT

Va90V

Ia12.79mA

Vg-1.36V

Pd1.15W

RL4kΩ

Av25.5dB

EXECUTIVE SUMMARY

The 6N23P is the Soviet equivalent of the 6922/E88CC, a premium frame-grid dual triode with high transconductance and a 6DJ8-compatible pinout. Soviet military-grade examples (marked with an OTK stamp and often a rocket or military factory logo) are tightly selected and well-built, offering performance competitive with European E88CC production at a fraction of the price. The Voskhod (Kaluga) and Reflektor (Saratov) factories are the primary sources, with early 1970s silver-shield Voskhod examples being particularly prized. It is a direct drop-in replacement for 6DJ8/6922/E88CC in virtually all circuits.

APPLICATIONS

Voltage amplifierPhase splitter

Generic triode preamp stage

• Hi-Fi stereo• Headphone amp

VS 6922

μ +3%Rp +8%Pd +9%Full comparison →

HISTORY

Introduced1965ManufacturerReflektor

Late Production