NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6BN6
Gated-Beam Pentode

EIA Base & Outline

EIA Base: 7DFEIA Bulb: 5-3

Substitute Data

Substitutes ................................... 6KS6
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as combined limiter, discriminator, and audio-voltage amplifier in intercarrier television and FM receivers. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-3
EIA Base ...................................... 7DF
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Grid No. 3 to All (Input) ..................... 4.2 pf
Grid No. 1 to Grid No. 3 ...................... 3.3 pf
Plate to All (Output) ......................... 0.004 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Positive Grid No. 3 Voltage ................... Note 1 V
Grid No. 2 Supply Voltage ..................... 110 V
Positive Grid No. 1 Voltage ................... 60 V
Grid No. 1 Circuit Resistance
Self Bias .................................. 13 Ω

Characteristics and Typical Operation

Quadature Detector
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 121 V
Grid No. 3 Voltage ............................ Note 1 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage Derived From
Cathode Bias Resistor ...................... 200-400 Ω
Plate Current ................................. 0.44 mA
Grid No. 2 Current ............................ 10 mA

Notes

Source ........................................ RCA RC-29 - 1975
1. For proper operation of this type in Quadrature-Grid-FM dtector circuit the Q of the quadrature grid tuned circuit should be sufficiently high to assure that

1. a 4-volt RMS signal is developed at the quadrature gride when a 2-volt RMS signal at the center frequency is applied to grid no. 1.

A horizontal ribbon.

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A horizontal ribbon.

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Tue, 16 Aug 2022 08:17:01 -0700