NJ7P SQL Tube Database Query

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1625
Beam Power Tube

EIA Base & Outline

Application

Heater-cathode type used as af power amplifier and modulator and as rf power amplifier and oscillator. May be used with full input up to 60 MHz. For class C telegraphy operation at 80 MHz,

plate voltage and input should be reduced to 80 % of maximum ratings; at 125 MHz to 55 %. Class C telegraphy maximum plate dissapation, CCS 25 Watts, ICAS 30 Watts.

Requires medium 7-contact socket and may be operated in any position. Plate shows no color when tube is operated at maximum CCS or ICAS ratings.

Mechanical Data

Bulb .......................................... ST-16
EIA Outline ................................... 16-2
EIA Base ...................................... 5AZ

Electrical Data

Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.45 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 12 pf
Output ........................................ 7 pf
Grid to Plate ................................. 0.2 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 30 W
Grid No. 2 Dissipation ........................ 3.5 W

For other characteristics and typical operation, see 807

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.

(c) 1994-2021 by William A. Beech, NJ7P

Sat, 02 Jul 2022 18:55:11 -0700