6HG5

Beam Tetrode — B7G

RCA

Known Equivalents & Substitutes

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

Similar Tubes (Not Drop-In Compatible)

Similar B7G beam power tube — Sams lists 6AQ5A as substitute

Similar B7G power pentode with similar output capability

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)275V

Screen Voltage (max)Screen Voltage (max)275V

Anode Dissipation (max)Anode Dissipation (max)12W

Screen Dissipation (max)Grid 2 Input (max)2W

Typical Operating

Anode Voltage (typical)Anode Voltage (typical)250V

Grid 1 Bias VoltageGrid 1 Bias Voltage-12.5V

Screen VoltageScreen Voltage (typical)250V

Anode CurrentZero-Signal Anode Current45mA

Anode ResistanceAnode Resistance (approx.)

Capacitances

Grid-to-Plate CapacitanceGrid-to-Plate Capacitance0.4pF

Grid-to-Cathode CapacitanceInput Capacitance8pF

Anode-to-Cathode CapacitanceOutput Capacitance8.5pF

output_stage

Output PowerMax Power Output4.5W

Heater

Heater VoltageHeater Voltage6.3V

Heater CurrentHeater Current0.45A

Notes

The 6HG5 features controlled cathode warm-up time to minimize extraneous sound during receiver warm-up. Minimum warm-up time is 14 seconds.
At Va=250V, Vg2=250V, Vg1=-12.5V: Ia=47mA, gm=4100 umhos, Rp=52kΩ, max power output 4.5W.
At Va=180V, Vg2=180V, Vg1=-8.5V: Ia=29mA, gm=3700 umhos, Rp=58kΩ, max power output 2W.

Pin Layout — B7G

1Grid 1 (Control Grid)

2Cathode

3Heater

4

Socket-Compatible Tubes ⚠ Not electrically compatible

References