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.

1609
Pentode

EIA Base & Outline

EIA Base: 5BEIA Bulb: 12-5
Source ........................................ RCA DS 01/12/42

Mechanical Data

Bulb .......................................... ST-12
Base Type ..................................... Small 5-Pin
EIA Outline ................................... 12-5
EIA Base ...................................... 5B
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 1.1 V
Heater Current ................................ 0.25 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 7 pf
Output ........................................ 7 pf
Grid to Plate ................................. 1 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 67.5 V

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 67.5 V
Grid No. 1 Voltage ............................ -1.5 V
Plate Resistance (approx) ..................... 400K Ω
Transconductance .............................. 725 µMho
Plate Current ................................. 2.5 mA
Grid No. 2 Current ............................ 0.65 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, 08 Dec 2021 12:41:32 -0700