NJ7P SQL Tube Database Query

Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.

5847A
Sharp-Cutoff Pentode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 6-1
EIA Base ...................................... 9X

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 7.1 pf
Output ........................................ 2.9 pf
Grid to Plate ................................. 0.04 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 180 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 3.0 W
Grid No. 2 Dissipation ........................ 0.75 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 110 Ω
Transconductance .............................. 12500 µ
Plate Current ................................. 13 mA
Grid No. 2 Current ............................ 4.5 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

Thu, 18 Aug 2022 00:40:30 -0700