NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6FA7
Diode - Sharp-Cutoff Twin-Plate Tetrode

EIA Base & Outline

EIA Base: 9MREIA Bulb: 6-3
Source ........................................ RCA RC-27 - 1973

Application

Source ........................................ RCA RC-27 - 1973
Miniature type used in tv receivers and in frequency divider and complex-wave generator circuits of electronic musical instruments. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-27 - 1973
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-3
EIA Base ...................................... 9MR

Electrical Data

Source ........................................ RCA RC-27 - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A

Direct Interelectrode Capacitances (approx)

Tetrode
Source ........................................ RCA RC-27 - 1973
Input ......................................... 5.5 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 0.035 pf

Maximum Ratings (Design Center Values)

Tetrode
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 1.5 W
Grid No. 2 Dissipation ........................ 0.65 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 90K Ω
Transconductance .............................. 3200 µMho
Plate Current ................................. 3.8 mA
Grid No. 2 Current ............................ 1.7 mA

A horizontal ribbon.

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A horizontal ribbon.

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Wed, 08 Dec 2021 13:32:43 -0700