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.

6528
Low-Mu Twin Triode

EIA Base & Outline

EIA Base: 8BD
Source ........................................ GE - 1973

Mechanical Data

EIA Base ...................................... 8BD

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 5.0 A

Direct Interelectrode Capacitances (approx)

Each Section
Input ......................................... 17.8 pf
Output ........................................ 2.9 pf
Grid to Plate ................................. 23.8 pf

Maximum Ratings (Design Center Values)

Each Section
Plate Voltage ................................. 400 V
Plate Dissipation ............................. 30 W

Characteristics and Typical Operation

DC Amplifier
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -4.0 V
Amplification Factor .......................... 9
Plate Resistance (approx) ..................... 245 Ω
Transconductance .............................. 37K µMho
Plate Current ................................. 185 mA

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

Wed, 29 Mar 2023 03:40:38 -0700