NJ7P SQL Tube Database Query

A horizontal ribbon.

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

A horizontal ribbon.

8117
Dual Tetrode

EIA Base & Outline

EIA Base: F7

Mechanical Data

EIA Base ...................................... F7

Electrical Data

Heater Voltage ................................ 6.3/12.6 V
Heater Current ................................ 1.8/0.9 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 11.8 pf
Output ........................................ 0.09 pf
Grid to Plate ................................. 3.7 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 60 W
Grid No. 2 Dissipation ........................ 7 W

Characteristics and Typical Operation

Class AB1 Amplifier
Plate Voltage ................................. 600 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -32.5 V
Plate Current (Zero Signal) ................... 60 mA
Plate Current (Maximum Signal) ................ 212 mA
Grid No. 2 Current (Zero Signal) .............. 1.9 mA
Grid No. 2 Current (Maximum Signal) ........... 25 mA
Load Resistance ............................... 1410 Ω
Power Output (approx) ......................... 76 W

A horizontal ribbon.

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.

Please enter the tube number:

This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

Other Tube Search Engines:
Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

A horizontal ribbon.

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

Fri, 19 Aug 2022 08:18:06 -0700