NJ7P SQL Tube Database Query

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A horizontal ribbon.

6SQ7
Twin Diode - High-Mu Triode

EIA Base & Outline

EIA Base: 8QEIA Bulb: 8-1

Substitute Data

Substitutes ................................... 6SZ7
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Metal type used as combined detector, amplifier and avc tube in radio receivers. This type is similar to type 6Q7 in many respects, but has a higher-mu triode. 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 ...................................... 8Q
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)

Triode
Source ........................................ RCA RC-15 - 1947
Input ......................................... 3.2 pf
Output ........................................ 3 pf
Grid to Plate ................................. 1.6 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -2 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 91K Ω
Transconductance .............................. 1100 µMho
Plate Current ................................. 0.9 mA

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 110K Ω
Transconductance .............................. 900 µMho
Plate Current ................................. 0.4 mA

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A horizontal ribbon.

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Wed, 05 Oct 2022 17:08:46 -0700