NJ7P SQL Tube Database Query

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6394
Low-Mu Twin Triode

EIA Base & Outline

EIA Base: 8BD
Source ........................................ GE - 1973

Mechanical Data

EIA Base ...................................... 8BD

Electrical Data

Heater Voltage ................................ 26.5 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Each Section
Input ......................................... 13.7 pf
Output ........................................ 4.7 pf
Grid to Plate ................................. 15.2 pf

Maximum Ratings (Design Center Values)

Each Section
Plate Voltage ................................. 400 V
Plate Dissipation ............................. 30 W

Characteristics and Typical Operation

DC Amplifier
Plate Voltage ................................. 190 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 200 Ω
Amplification Factor .......................... 2.7
Plate Resistance (approx) ..................... 200 Ω
Transconductance .............................. 13.5K µMho
Plate Current ................................. 185 mA

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Wed, 29 Mar 2023 00:43:48 -0700