NJ7P SQL Tube Database Query

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A horizontal ribbon.

HY145
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 ............................ 22.5 V
Grid No. 1 Voltage ............................ -1.5 V
Amplification Factor .......................... 300
Plate Resistance (approx) ..................... 5.2M Ω
Transconductance .............................. 58 µMho
Plate Current ................................. 0.03 mA
Grid No. 2 Current ............................ 0.008 mA

Class A Amplifier
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 45 V
Grid No. 1 Voltage ............................ -1.5 V
Amplification Factor .......................... 370
Plate Resistance (approx) ..................... 1.3M Ω
Transconductance .............................. 270 µMho
Plate Current ................................. 0.48 mA
Grid No. 2 Current ............................ 0.1 mA

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A horizontal ribbon.

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Tue, 28 Jun 2022 02:28:41 -0700