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367A — Small Signal Triode, Octal | Tubeofile
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367A
Small Signal Triode — Octal
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Western Electric
↗ Radiomuseum
Known Equivalents & Substitutes
No known equivalents. If you know of any, use the ⚑ Report Issue button above.
Similar Tubes (Not Drop-In Compatible)
6J5
Similar medium-mu triode on Octal base — functionally comparable but different ratings
Electrical Specifications
Absolute Maximum
Anode Voltage (max)
Anode Voltage (max)
300
V
Typical Operating
Anode Voltage (typical)
Anode Voltage (typical)
250
V
Grid 1 Bias Voltage
Grid 1 Bias Voltage
-8
V
Anode Current
Anode Current
9
mA
Anode Resistance
Anode Resistance
7,700
Ω
Transconductance
Transconductance
Heater
Heater Voltage
Heater Voltage
6.3
V
Heater Current
Heater Current
0.3
A
Notes
Western Electric telephone-grade tube — manufactured to stringent WE quality standards.
RCA interchange guide lists no direct interchangeable types, only 673 as similar.
Part of the WE 300-series that includes audio triodes used in telephone repeater amplifiers and broadcasting equipment.
Limited production and availability — primarily found in WE-designed telephone equipment.
Pin Layout — Octal
1
2
3
4
5
6
7
8
1
No Connection
2
Heater
3
Anode
4
Socket-Compatible Tubes
⚠ Not electrically compatible
6A5G
6S2S
6S41S
2.6
mA/V
Amplification Factor (μ)
Amplification Factor (μ)
20
—
No Connection
5
Control Grid
6
No Connection
7
Heater
8
Cathode