NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

7059
Medium-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9AEEIA Bulb: 6-2
Source ........................................ RCA RC-29 - 1975

Application

Miniature type used as a combined oscillator and mixer in mobile communications equipment. Requires miniature 9-contact socket.

Mechanical Data

EIA Outline ................................... 6-2
EIA Base ...................................... 9AE

Electrical Data

Heater Voltage ................................ 12-15 V
Heater Current ................................ 0.195 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 5 pf
Output ........................................ 2.5 pf
Grid to Plate ................................. 0.15 pf

Triode
Input ......................................... 2.7 pf
Output ........................................ 0.4 pf
Grid to Plate ................................. 1.7 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 2.8 W
Grid No. 2 Dissipation ........................ 0.5 W

Triode
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 2.5 W

Characteristics and Typical Operation

Triode Class A Amplifier
Plate Voltage ................................. 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 56 Ω
Plate Resistance (approx) ..................... 4.7K Ω
Transconductance .............................. 8500 µMho
Plate Current ................................. 18 mA

Pentode Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 110 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 68 Ω
Plate Resistance (approx) ..................... 400K Ω
Transconductance .............................. 5200 µMho
Plate Current ................................. 10 mA
Grid No. 2 Current ............................ 3.5 mA

A horizontal ribbon.

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A horizontal ribbon.

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Fri, 19 Aug 2022 08:11:47 -0700