6AG7

Small Signal Pentode — Octal

RCA

Known Equivalents & Substitutes

CV1882VT247

Similar Tubes (Not Drop-In Compatible)

6CL6

Later miniature replacement with similar characteristics — different base, not pin-compatible

Rimlock equivalent per Brans — different base, not pin-compatible

Electrical Specifications

Absolute Maximum

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

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

Anode Dissipation (max)Anode Dissipation (max)9W

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

Heater-to-Cathode Voltage (max)Heater-Cathode Voltage (max)90V

Typical Operating

Anode Voltage (typical)Anode Voltage300V

Screen Voltage (typical)Screen Voltage150V

Grid 1 Bias VoltageGrid Voltage-3V

Anode CurrentAnode Current (zero-signal)30mA

Screen CurrentScreen Current (zero-signal)

Output

Output PowerMaximum Power Output (Class A1)3W

Load ImpedanceLoad Resistance10,000Ω

Capacitances

Grid-to-Plate CapacitanceGrid-to-Plate Capacitance (max)0.06pF

Heater

Heater VoltageHeater Voltage6.3V

Heater CurrentHeater Current0.65A

Notes

Originally designed as a video amplifier pentode with very high transconductance (11 mA/V).
The metal shell is connected to Pin 1 along with Suppressor Grid (g3).
Pin 3 has no connection — leave open.
Maximum power output of 3 W in Class A1; primarily used for voltage amplification rather than power output.
Grid-to-plate capacitance is very low (0.06 pF max) making it suitable for wideband applications.

Pin Layout — Octal

1Shell,Suppressor Grid (g3)

2Heater

3

References