6384 — Beam Tetrode, Octal | Tubeofile

6384

Beam Tetrode — Octal

Bendix

Known Equivalents & Substitutes

6AR660986AR6WATE-27CV3613CV9010

Electrical Specifications

Section 1 — Beam Tetrode

Absolute Maximum

Anode Voltage (max)Plate Voltage (Max DC)750V

Screen Voltage (max)Screen Voltage (Max DC)325V

Anode Dissipation (max)Plate Dissipation (Absolute Max)30W

Screen Dissipation (max)Screen Dissipation (Absolute Max)3.5W

Cathode Current (max)Cathode Current (Max DC Value)125mA

Heater-to-Cathode Voltage (max)Heater-Cathode Voltage (Max)450V

Max Grid ResistorGrid Resistance (Max)0.1MΩ

Typical Operating

Anode Voltage (typical)Plate Voltage250V

Screen Voltage (typical)Screen Voltage250V

Grid 1 Bias VoltageGrid 1 Voltage-22.5V

Anode CurrentPlate Current77mA

Screen CurrentScreen Current

Capacitances

Grid-to-Plate CapacitanceGrid-to-Plate Capacitance0.55pF

Grid-to-Cathode CapacitanceGrid-to-Cathode Capacitance11pF

Anode-to-Cathode CapacitanceAnode-to-Cathode Capacitance7pF

Section 2 — Triode Strapped

Absolute Maximum

Max Grid ResistorGrid Circuit Resistance (Max)0.1MΩ

Typical Operating

Anode Voltage (typical)Plate Voltage200V

Grid 1 Bias VoltageGrid 1 Voltage-12.5V

Anode CurrentPlate Current90mA

Heater

Heater VoltageHeater Voltage6.3V

Heater CurrentHeater Current1.2A

Notes

Each tube is given a 45-hour run-in under overload, vibration, and shock conditions to screen out early failures before shipping.
Constructed with ceramic spacers instead of mica, Nonex hard glass bulb, and tungsten stem seals for extreme reliability under vibration (up to 500G shock) and high temperature (up to 300°C bulb temperature).
The Bendix datasheet specifies higher maximum ratings than the original Tung-Sol 6AR6: 750V max plate voltage and 30W max plate dissipation vs 565V/19W for the 6AR6. Screen voltage ratings also differ: 325V (6384) vs 300V (6AR6).
Grid voltage range is +5.0V to -200V DC. Heater-cathode voltage max is +/-450V.
Originally designed for pulse amplifier and radar sweep applications; adopted by audio designers for its high-perveance characteristics and sonic quality.
Triode-strapped data sourced from the Tung-Sol 6AR6 datasheet (the 6384 is the ruggedized version of the 6AR6 with identical internal structure). Parameters apply to the 6384 at the stated operating point.

Pin Layout — Octal

1Cathode

2Heater

3Plate (Anode)

References