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A horizontal ribbon.

5670WA
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 8CJEIA Bulb: 6-1

Substitute Data

Preferred Substitutes ......................... 2C51

Application

A ruggedized, medium-mu, double triode using the 9-pin miniature construction. It may be used as an amplifier, mixer, oscillator or multivibrator over a frequency range AF through VHF.

It is designed for reliable life under conditions of intermittent operation.It is especially suited for use in military and industrial airborne equipment which may be subjected to severe shock and vibration. Special 2C51.

Mechanical Data

EIA Outline ................................... 6-1
EIA Base ...................................... 8CJ

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.35 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 2.2 pf
Output ........................................ 1.0 pf
Grid to Plate ................................. 1.1 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1.65 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 240 Ω
Amplification Factor .......................... 35
Transconductance .............................. 5500 µMho
Plate Current ................................. 8.2 mA

Class AB1 Amplifier
Plate Voltage ................................. 300 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 800 Ω
Plate Current (Zero Signal) ................... 4.9 mA
Plate Current (Maximum Signal) ................ 6.3 mA
Load Resistance ............................... 27K Ω
Power Output (approx) ......................... 1.0 W

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A horizontal ribbon.

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Fri, 24 Jun 2022 18:01:24 -0700