NJ7P SQL Tube Database Query

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6CB6
Sharp-Cutoff Pentode

EIA Base & Outline

Application

Source ........................................ TungSol
Miniature type used in television receivers as if amplifier at frequencies up to about 45 MHz and as rf amplifiers in vhf television tuners. Requires miniature socket.

Mechanical Data

Source ........................................ TungSol
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7CM
Mounting Position ............................. Any

Electrical Data

Source ........................................ TungSol
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ TungSol
Shielded Unshielded
Input ......................................... 6.5 6.5 pf
Output ........................................ 3.0 2.0 pf
Grid to Plate ................................. 0.015 0.025 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ TungSol
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 2.0 W
Grid No. 2 Dissipation ........................ 0.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 180 Ω
Plate Resistance (approx) ..................... 600K Ω
Transconductance .............................. 6200 µ
Plate Current ................................. 9.5 mA
Grid No. 2 Current ............................ 2.8 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

Mon, 28 Nov 2022 02:21:16 -0700