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6J6
Medium-Mu Twin Triode

Base & Bulb ( RCA RC-15 - 1947)

Application

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.Requires miniature 7-contact socket and may be mounted in any position.

Mechanical Data

Bulb .......................................... T-5 1/2
Base .......................................... Miniature Button 7-Pin
Outline ....................................... 5-2
EIA Base ...................................... 7BF
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 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)

Each Triode
Input ......................................... 2 pf
Output ........................................ 0.4 pf
Grid to Plate ................................. 1.5 pf

Maximum Ratings (Design Center Values)

Each Triode
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 1.5 W
Grid No. 1 Circuit Resistance
Self Bias ................................... 0.5M Ω

Characteristics and Typical Operation

Class A Amplifier
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 µ
Plate Current ................................. 8.5 mA

Characteristics and Typical Operation

Class C Amplifier & Oscillator
Plate Voltage ................................. 150 V
Grid No. 1 Voltage ............................ -10 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ....................... 625 Ω
Peak Grid No. 1 Voltage........................ 220 V
Grid No. 1 Current ............................ 1.6 mA
Plate Current ................................. 30 mA
Driving Power ................................. 0.035 W
Power Output (approx) ......................... 3.5 W

Characteristic Curves

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