NJ7P SQL Tube Database Query

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12DS7
Twin Diode - Power Tetrode

EIA Base & Outline

EIA Base: 9JUEIA Bulb: 6-3
Source ........................................ ARRL HB - 1964

Mechanical Data

Source ........................................ ARRL HB - 1964
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9JU
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 10-16 V
Heater Current ................................ 0.4 A

Characteristics and Typical Operation

Tetrode Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 16 V
Grid No. 2 Voltage ............................ 16 V
Amplification Factor .......................... 7.2
Plate Resistance (approx) ..................... 480 Ω
Transconductance .............................. 15K µMho
Plate Current ................................. 40 mA
Grid No. 2 Current ............................ 75 mA
Load Resistance ............................... 800 Ω
Power Output (approx) ......................... 0.04 W

Max Rating (Diode)
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 16 V
Plate Current ................................. 5 mA

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Thu, 11 Aug 2022 13:33:15 -0700