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.

3-75A2
Power Triode

EIA Base & Outline

EIA Base: 2D

Mechanical Data

EIA Base ...................................... 2D

Electrical Data

Heater Voltage ................................ 5.0 V
Heater Current ................................ 6.25 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 2.7 pf
Output ........................................ 0.3 pf
Grid to Plate ................................. 2.3 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 3000 V
Plate Dissipation ............................. 75 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 2000 V
Grid No. 1 Voltage ............................ -300 V
Grid No. 1 Current ............................ 21 mA
Plate Current ................................. 150 mA
Driving Power ................................. 8 W
Power Output (approx) ......................... 225 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 2000 V
Grid No. 1 Voltage ............................ -500 V
Grid No. 1 Current ............................ 20 mA
Plate Current ................................. 130 mA
Driving Power ................................. 14 W
Power Output (approx) ......................... 210 W

Class AB2 Amplifier
Plate Voltage ................................. 2000 V
Grid No. 1 Voltage ............................ -190 V
Peak Grid No. 1 Voltage........................ 600 V
Plate Current (Zero Signal) ................... 50 mA
Plate Current (Maximum Signal) ................ 250 mA
Driving Power ................................. 5 W
Load Resistance ............................... 18K Ω
Power Output (approx) ......................... 350 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

Thu, 18 Aug 2022 16:46:56 -0700