6P14P — Power Pentode, Noval | Tubeofile

6P14P

Power Pentode — Noval

Known Equivalents & Substitutes

EL846BQ57189N709E84L

Similar Tubes (Not Drop-In Compatible)

Series-heater equivalent (15V/0.3A) — not compatible with 6.3V parallel heater circuits

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)300V

Screen Voltage (max)Screen Voltage (max)300V

Anode Dissipation (max)Anode Dissipation (max)14W

Screen Dissipation (max)Screen Dissipation (max)2.2W

Cathode Current (max)Cathode Current (max)65mA

Heater-to-Cathode Voltage (max)Heater-to-Cathode Voltage (max)100V

Max Grid ResistorMax Grid Resistor1MΩ

Typical Operating

Anode Voltage (typical)Anode Voltage250V

Screen Voltage (typical)Screen Voltage250V

Grid 1 Bias VoltageGrid 1 Bias Voltage-6.4V

Anode CurrentAnode Current48mA

Screen CurrentScreen Current

Output

Output PowerOutput Power4.2W

Load ImpedanceLoad Impedance5,200Ω

Capacitances

Grid-to-Plate CapacitanceTransfer Capacitance≤0.2pF

Input CapacitanceInput Capacitance11pF

Output CapacitanceOutput Capacitance7pF

Heater

Heater VoltageHeater Voltage6.3V

Heater CurrentHeater Current0.76A

Notes

Cyrillic designation: 6П14П (6P14P), 6П14П-В (6P14P-V), 6П14П-ЕВ (6P14P-EV).
Higher Pa_max than standard Western EL84: 14 W vs 12 W. This is a genuine rating difference, not just a rebranding.
Screen dissipation: 2.2 W for base 6P14P, 2.0 W for V/EV variants.
Vhk_max is 100 V for base 6P14P vs 200 V for V/EV — critical difference for series-heater or elevated-cathode circuits.
6P14P-EV is the military-grade version: 5000-hour life, -60 to +70 °C ambient, 10 g vibration, 300 g single impact. Standard 6P14P is rated 3000 hours with 2.5 g vibration only.
Internal resistance (ra) is not stated in the Soviet datasheet. The EL84 ra ≈ 38 kΩ (from Philips/Mullard) is applicable as the tubes are electrically equivalent.
No triode connection data in the Soviet datasheet. EL84 triode data (from Mullard/Philips datasheets) is applicable.

Pin Layout — Noval

1Suppressor Grid (g3,internal connection to cathode)

2Control Grid

References