TUBEOFILE
367A — Small Signal Triode, Octal | Tubeofile | Tubeofile
← Browse Medium quality — at least 60% of universal parameters and pins are present, but some key data is missing. Verify specific values against datasheets before critical use.
Known Equivalents & Substitutes
No known equivalents. If you know of any, use the ⚑ Report Issue button above.
Similar Tubes (Not Drop-In Compatible)
Similar medium-mu triode on Octal base — functionally comparable but different ratings Electrical Specifications
Absolute Maximum
Anode Voltage (max) Anode Voltage (max) 300V
Typical Operating
Anode Voltage (typical) Anode Voltage (typical) 250V
Grid 1 Bias Voltage Grid 1 Bias Voltage -8V
Anode Current Anode Current 9mA
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
Anode Resistance Anode Resistance
7,700Ω
Transconductance Transconductance 2.6mA/V
Amplification Factor (μ) Amplification Factor (μ) 20—
Heater
Heater Voltage Heater Voltage 6.3V
Heater Current Heater Current 0.3A
No Connection