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.

6145
Sharp-Cutoff Pentode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 9-31
EIA Base ...................................... 8V

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 14 pf
Output ........................................ 7.5 pf
Grid to Plate ................................. 0.06 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 10 W
Grid No. 2 Dissipation ........................ 2.5 W

Characteristics and Typical Operation

Pulse Amplifier
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 100K Ω
Plate Current ................................. 34 mA
Grid No. 2 Current ............................ 8 mA

Pulse Amplifier
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -5.3 V
Plate Current ................................. 2.0 mA

Pulse Amplifier
Plate Voltage ................................. 60 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Grid No. 2 Current ............................ 12 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

Tue, 21 Mar 2023 04:59:07 -0700