6AW8A

Compound (multi-section) — Noval

RCA

Known Equivalents & Substitutes

6AW8

Similar Tubes (Not Drop-In Compatible)

8AW8A

Different heater voltage (8.4V series-string version)

Electrical Specifications

Section 1 — Pentode

Absolute Maximum

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

Screen Voltage (max)Screen Voltage (max)330V

Anode Dissipation (max)Plate Dissipation (max)3.75W

Screen Dissipation (max)Screen Dissipation (max, Vg2 up to 165V)1.1W

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

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

Typical Operating

Anode Voltage (typical)Plate Voltage150V

Screen Voltage (typical)Screen Voltage150V

Grid 1 Bias VoltageGrid Voltage0V

Anode CurrentPlate Current15mA

Screen CurrentScreen Current

Capacitances

Grid-to-Plate CapacitanceGrid-to-Plate Capacitance0.05pF

Input CapacitanceInput Capacitance10pF

Output CapacitanceOutput Capacitance3.6pF

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 Current0.6A

Notes

The internal shield is connected to the pentode cathode and grid No.3 (pin 6). The cathode circuit impedance should be kept as low as possible to minimize cross-coupling between sections.
The pentode section has a second set of operating conditions at low plate voltage (Va=65V, Vs=150V) with Ia=46mA, Is=15mA — intended for video output service.
Heater warm-up time is approximately 11 seconds. In series-string operation the heater current rating is 0.450A at 6.3V.

Pin Layout — Noval

1Triode Cathode

2Triode Grid

3Triode Plate

References