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A horizontal ribbon.

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A horizontal ribbon.

6J6A
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 7BFEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 7244
Substitutes ................................... 5964 6045 6101
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as an rf power amplifier and oscillator or as an af amplifier. With a push-pull arrangement of the grids and with the plates in parallel, it is also used as a mixer at frequencies as high as 600 MHz.

Source ........................................ RCA RC-29 - 1975
Requires miniature 7-contact socket and may be mounted in any position.

Mechanical Data

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

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A

Direct Interelectrode Capacitances (approx)

Each Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 2.2 pf
Output ........................................ 0.4 pf
Grid to Plate ................................. 1.6 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 1.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 50 Ω
Amplification Factor .......................... 38
Plate Resistance (approx) ..................... 7.1K Ω
Transconductance .............................. 5300 µMho
Plate Current ................................. 8.5 mA

Mixer Oscillator Inj = 3V
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 810 Ω
Plate Resistance (approx) ..................... 10.2K Ω
Transconductance .............................. 1900 µMho
Plate Current ................................. 4.8 mA

Class C Amplifier & Oscillator
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 150 V
Grid No. 1 Voltage ............................ -10 V
Grid No. 1 Current ............................ 1.6 mA
Plate Current ................................. 30 mA
Driving Power ................................. 0.035 W
Power Output (approx) ......................... 3.5 W

A horizontal ribbon.

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A horizontal ribbon.

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Fri, 19 Aug 2022 22:07:46 -0700