6AG9

Compound (multi-section) — Compactron

General Electric

Known Equivalents & Substitutes

No known equivalents. If you know of any, use the ⚑ Report Issue button above.

Electrical Specifications

Section 1 — Pentode

Absolute Maximum

Anode Voltage (max)Plate Voltage (max)330V

Screen Voltage (max)Screen Voltage (max)200V

Anode Dissipation (max)Plate Dissipation (max)10W

Screen Dissipation (max)Screen Dissipation (max)1.5W

Cathode Current (max)Cathode Current (max)77mA

Heater-to-Cathode Voltage (max)Heater-Cathode Voltage (max)200V

Max Grid ResistorGrid Resistor (max, cathode bias)0.25MΩ

Typical Operating

Anode Voltage (typical)Plate Voltage250V

Screen Voltage (typical)Screen Voltage150V

Grid 1 Bias VoltageGrid Voltage0V

Anode CurrentPlate Current28mA

Screen CurrentScreen Current

Capacitances

Grid-to-Plate CapacitanceGrid-to-Plate Capacitance0.16pF

Input CapacitanceInput Capacitance17pF

Output CapacitanceOutput Capacitance6.5pF

Section 2 — Triode

Absolute Maximum

Anode Voltage (max)Plate Voltage (max)330V

Anode Dissipation (max)Plate Dissipation (max)1.1W

Heater-to-Cathode Voltage (max)Heater-Cathode Voltage (max)200V

Max Grid ResistorGrid Resistor (max, cathode bias)1MΩ

Typical Operating

Heater

Heater VoltageHeater Voltage6.3V

Heater CurrentHeater Current0.82A

Notes

The pentode section uses a frame-grid construction for high transconductance (30 mA/V), making it suitable for wideband video amplifier service.
The pentode has a second set of typical operating conditions at low plate voltage (Va=55V, Vs=125V) with Ia=56mA, Is=21mA — intended for video output stage operation.
Grid resistor maximum values differ between fixed bias (pentode 0.1MΩ, triode 0.5MΩ) and cathode bias (pentode 0.25MΩ, triode 1.0MΩ).

Pin Layout — Compactron

1Heater

2

References