6N13P — Power Triode, Octal | Tubeofile

6N13P

Power Triode — Octal

Soviet (various factories)

Known Equivalents & Substitutes

6N13S6H13C 6AS76AS7G6AS7GA60806080WA6080WB6520CV2523CV2984CV10322CK6080E6080ECC230A1834A4475EI834RK60806N5S 7802

Similar Tubes (Not Drop-In Compatible)

Same Octal pinout but approximately double the mu (5.4 vs ~2.5) and gm (15.5 vs 5.5 mA/V) — changes bias points, not a drop-in

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)250V

Anode Dissipation (max)Anode Dissipation (max, per plate)13W

Cathode Current (max)Cathode Current (max, per plate)130mA

Heater-to-Cathode Voltage (max)Heater-Cathode Voltage (max)300V

Notes

Cyrillic designation: 6Н13П. The 'П' suffix denotes civilian/industrial grade. The military grade is 6Н13С (6N13S), which has tighter parameter tolerances and extended temperature range (-60 to +70 C) but identical electrical ratings.
The Soviet datasheet specifies ra as '<=460 Ω' (an upper limit, not a typical value). The Western equivalent 6AS7G specifies ra=280 Ω typical. Actual ra varies with operating point.
The Chinese-made 6N13P (e.g. Shuguang) may have different characteristics from Soviet-made tubes. Some Chinese sources list mu=24 and ra=400 Ω, which appear to be erroneous — inconsistent with the tube's known role as a 6AS7G equivalent.
Guaranteed service life: 1000 hours (civilian 6N13P) vs 2000 hours (military 6N13S).
When used in compensator-type electronic stabilizers, the grid circuit resistance may be up to 3 MΩ (vs the standard 1 MΩ limit).
Va_max is 250V in continuous operation, but 500V is permitted momentarily when switching in with a cold tube.

Pin Layout — Octal

1Grid (triode 2)

2Anode (triode 2)

3Cathode (triode 2)

Socket-Compatible Tubes ⚠ Not electrically compatible

References