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.

1F4
Power Pentode

EIA Base & Outline

EIA Base: 5KEIA Bulb: 14-1

Substitute Data

Substitutes ................................... 33
Source ........................................ RCA RC-13 - 1937

Application

Source ........................................ RCA RC-13 - 1937
Glass octal type used in output stage of battery-operated receivers. Requires an octal socket. Similar electrically to Type 1F5G.

Mechanical Data

Source ........................................ RCA RC-13 - 1937
Bulb .......................................... ST-14
Base Type ..................................... Medium 5-Pin
EIA Outline ................................... 14-1
EIA Base ...................................... 5K
Mounting Position ............................. Vertical

Electrical Data

Source ........................................ RCA RC-13 - 1937
Filament Voltage .............................. 2.0 DC V
Filament Current .............................. 0.12 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-13 - 1937
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 135 V
Cathode Current ............................... mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. Ω
Self Bias .................................. Ω
Bulb Temperature (At Hottest Point) ........... °C

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-13 - 1937
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 340
Plate Resistance (approx) ..................... 240K Ω
Transconductance .............................. 1400 µMho
Plate Current ................................. 4.0 mA
Grid No. 2 Current ............................ 1.3 mA
Load Resistance ............................... 20K Ω
Power Output (approx) ......................... 0.12 W

Class A Amplifier
Source ........................................ RCA RC-13 - 1937
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 135 V
Grid No. 1 Voltage ............................ -4.5 V
Amplification Factor .......................... 340
Plate Resistance (approx) ..................... 200K Ω
Transconductance .............................. 1700 µMho
Plate Current ................................. 8.0 mA
Grid No. 2 Current ............................ 2.6 mA
Load Resistance ............................... 16K Ω
Power Output (approx) ......................... 0.34 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, 09 Dec 2022 05:36:39 -0700