NJ7P SQL Tube Database Query

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A horizontal ribbon.

6SF7
Diode - Remote Cutoff Pentode

EIA Base & Outline

EIA Base: 7AZEIA Bulb: 8-1

Substitute Data

Substitutes ................................... 6SV7
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Metal type used as combined rf or if amplifier and detector or avc tube in radio receivers. Also used as resistance-coupled amplifier. Requires octal socket and may be mounted in any position.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... MT-8
Base Type ..................................... Small Wafer Octal 8-Pin
EIA Outline ................................... 8-1
EIA Base ...................................... 7AZ
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-15 - 1947
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 90 V
Heater Negative with Respect to Cathode
DC Component ............................ 90 V

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-15 - 1947
Input ......................................... 5.5 pf
Output ........................................ 6 pf
Grid to Plate ................................. 0.004 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 100 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 3.5 W
Grid No. 2 Dissipation ........................ 0.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -1 V
Plate Resistance (approx) ..................... 700K Ω
Transconductance .............................. 2050 µMho
Plate Current ................................. 12.4 mA
Grid No. 2 Current ............................ 3.3 mA

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -1 V
Plate Resistance (approx) ..................... 200K Ω
Transconductance .............................. 1975 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 3.4 mA

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A horizontal ribbon.

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Mon, 03 Oct 2022 23:05:59 -0700