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.

805
Power Triode

EIA Base & Outline

EIA Base: 3N

Application

Thoriated-tungsten-filament type used as af power amplifier and modulator and as rf power amplifier and oscillator. Requires small five-contact socket and may be operated in any position.

Mechanical Data

EIA Base ...................................... 3N

Electrical Data

Heater Voltage ................................ 10 V
Heater Current ................................ 3.25 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 8.5 pf
Output ........................................ 10.5 pf
Grid to Plate ................................. 6.5 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 1500 V
Plate Dissipation ............................. 125 W

Characteristics and Typical Operation

Class C Oscillator/Amplifier
Plate Voltage ................................. 1500 V
Grid No. 1 Voltage ............................ -105 V
Grid No. 1 Current ............................ 40 mA
Plate Current ................................. 200 mA
Driving Power ................................. 8.5 W
Power Output (approx) ......................... 215 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 1250 V
Grid No. 1 Voltage ............................ -160 V
Grid No. 1 Current ............................ 60 mA
Plate Current ................................. 160 mA
Driving Power ................................. 16 W
Power Output (approx) ......................... 140 W

Push Pull Class B Amplifier
Plate Voltage ................................. 1500 V
Grid No. 1 Voltage ............................ -16 V
Peak Grid No. 1 Voltage........................ 280 V
Plate Current (Zero Signal) ................... 84 mA
Plate Current (Maximum Signal) ................ 400 mA
Driving Power ................................. 7.0 W
Load Resistance ............................... 8.2K Ω
Power Output (approx) ......................... 370 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

Sat, 04 Dec 2021 18:56:27 -0700