NJ7P SQL Tube Database Query

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HY155
Pentode Voltage Amplifier

EIA Base & Outline

EIA Base: 5K
Source ........................................ ARRL HB - 1947

Mechanical Data

Source ........................................ ARRL HB - 1947
EIA Base ...................................... 5K

Electrical Data

Source ........................................ ARRL HB - 1947
Heater Voltage ................................ 1.4 V
Heater Current ................................ 0.07 A

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 45 V
Grid No. 2 Voltage ............................ 45 V
Grid No. 1 Voltage ............................ -3.0 V
Amplification Factor .......................... 255
Plate Resistance (approx) ..................... 825K Ω
Transconductance .............................. 310 µMho
Plate Current ................................. 0.9 mA
Grid No. 2 Current ............................ 0.2 mA
Load Resistance ............................... 50K Ω
Power Output (approx) ......................... 0.0115 W

Class A Amplifier
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ -7.5 V
Amplification Factor .......................... 190
Plate Resistance (approx) ..................... 420K Ω
Transconductance .............................. 450 µMho
Plate Current ................................. 2.6 mA
Grid No. 2 Current ............................ 0.5 mA
Load Resistance ............................... 28K Ω
Power Output (approx) ......................... 0.09 W

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Wed, 08 Dec 2021 21:42:45 -0700