NJ7P SQL Tube Database Query

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6ET7
Twin Diode - Sharp-Cutoff Pentode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6KU8
Source ........................................ RCA RC-27 - 1973

Application

Source ........................................ RCA RC-27 - 1973
Miniature type used in tv receiver applications. Pentode is used as a video amplifier and the diodes are used as a horizontal phase inverter. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-27 - 1973
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9LT
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-27 - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.75 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-27 - 1973
Input ......................................... 10 pf
Output ........................................ 4.2 pf
Grid to Plate ................................. 0.1 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 5 W
Grid No. 2 Dissipation ........................ 1.1 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 100 Ω
Plate Resistance (approx) ..................... 60K Ω
Transconductance .............................. 11500 µ
Plate Current ................................. 25 mA
Grid No. 2 Current ............................ 5.5 mA

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

Sun, 26 Jun 2022 04:35:37 -0700