NJ7P SQL Tube Database Query

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12BK5
Beam Power Tube

EIA Base & Outline

EIA Base: 9BQEIA Bulb: 6-3

Mechanical Data

Bulb .......................................... T-6 1/2
Base Type ..................................... Small Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9BQ
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.6 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -5 V
Plate Resistance (approx) ..................... 100K Ω
Transconductance .............................. 8500 µMho
Plate Current ................................. 35 mA
Grid No. 2 Current ............................ 3.5 mA
Load Resistance ............................... 6500 Ω
Power Output (approx) ......................... 3.5 W

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A horizontal ribbon.

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Sun, 26 Jun 2022 05:03:24 -0700