NJ7P SQL Tube Database Query

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6486A
Dual Control Pentode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 6-2
EIA Base ...................................... 9DV

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.25 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 4.5 pf
Output ........................................ 3.3 pf
Grid to Plate ................................. 0.035 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 155 V
Plate Dissipation ............................. 2.0 W
Grid No. 2 Dissipation ........................ 0.85 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 120 V
Grid No. 2 Voltage ............................ 120 V
Grid No. 1 Voltage ............................ -2.0 V
Transconductance .............................. 3250 µ
Plate Current ................................. 3.5 mA
Grid No. 2 Current ............................ 3.3 mA

Class A Amplifier
Plate Voltage ................................. 120 V
Grid No. 2 Voltage ............................ 120 V
Grid No. 1 Voltage ............................ -2.0 V
Transconductance .............................. 2100 µ
Plate Current ................................. 4.2 mA
Grid No. 2 Current ............................ 5.1 mA

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

Sat, 02 Jul 2022 08:15:42 -0700