NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6BF6
Twin Diode - Medium-Mu Triode

EIA Base & Outline

EIA Base: 7BTEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 6BU6
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Miniature type used in compact radio equipment as combined detector, amplifier, and avc tube. The triode unit is particularly useful as a driver for impedance- or transformer-coupled output stages in automobile receivers.

Source ........................................ RCA RC-15 - 1947
It is equivalent in performance to metal type 6SR7. The requires miniature 7-contact socket and may be mounted in any position.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7BT
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 ......................................... 1.8 pf
Output ........................................ 0.8 pf
Grid to Plate ................................. 2 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 2.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -9 V
Amplification Factor .......................... 16
Plate Resistance (approx) ..................... 8.5K Ω
Transconductance .............................. 1900 µMho
Plate Current ................................. 9.5 mA
Load Resistance ............................... 10K Ω
Power Output (approx) ......................... 0.3 W

A horizontal ribbon.

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A horizontal ribbon.

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Wed, 05 Oct 2022 18:58:51 -0700