NJ7P SQL Tube Database Query

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6HL5
Beam Power Pentde

EIA Base & Outline

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-4
EIA Base ...................................... 9QW

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.95 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 12 W
Grid No. 2 Dissipation ........................ 2.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 130 V
Grid No. 2 Voltage ............................ 130 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 56 Ω
Plate Resistance (approx) ..................... 7500 Ω
Transconductance .............................. 17000 µ
Plate Current ................................. 70 mA
Grid No. 2 Current ............................ 5.0 mA
Load Resistance ............................... 2K Ω
Power Output (approx) ......................... 3 W

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Tue, 28 Mar 2023 23:46:48 -0700