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6BY6 — Hexode, B7G | Tubeofile
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6BY6
Hexode — B7G
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GE
↗ Radiomuseum
Known Equivalents & Substitutes
No known equivalents. If you know of any, use the ⚑ Report Issue button above.
Similar Tubes (Not Drop-In Compatible)
6BE6
Similar heptode on B7G base but designed as pentagrid converter, not gated amp
6CS6
Similar dual-control heptode on B7G base — same gated amplifier application
Electrical Specifications
Absolute Maximum
Anode Voltage (max)
Max Plate Voltage
300
V
Screen Voltage (max)
Max Screen Voltage
150
V
Anode Dissipation (max)
Max Plate Dissipation
2
W
Typical Operating
Anode Voltage (typical)
Plate Voltage
10
V
Screen Voltage (typical)
Screen Voltage
25
V
Grid 1 Bias Voltage
Grid Voltage
-2.5
V
Anode Resistance
Plate Resistance
1,900
Ω
Heater
Heater Voltage
Heater Voltage
6.3
V
Heater Current
Heater Current
0.3
A
Notes
GE Essential Characteristics: Dual-Control Heptode, B7G (7CH) base. Va=10V, Vg2=25V, Vg=-2.5V, Pa_max=2W, Va_max=300V, Vg2_max=150V, Rp=1900Ω.
Sams lists 6H31, EH90 as substitutes.
Can function as a logic switching device: both control grids at 0V allow conduction, negative voltage on either grid blocks operation.
Muiderkring Handbook page 152 lists this type.
Pin Layout — B7G
1
2
3
4
5
6
7
1
Signal Grid (g1)
2
Cathode
,
Suppressor Grid (g5)
3
Heater
4
Socket-Compatible Tubes
⚠ Not electrically compatible
6BC5
6BM5
6CE5
6CS6
PL95
References
https://frank.pocnet.net/sheets/127/6/6BY6.pdf
Heater
5
Plate
6
Screen Grid (g2+g4)
7
Control Grid (g3)