NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6814
Medium-Mu Triode

EIA Base & Outline

EIA Base: 8DKEIA Bulb: 3-1
Source ........................................ GE - 1973

Application

Subminiature type used as a general purpose amplifier in subminiature equipment. Requires either a subminiature socket or direct soldering of the wires from the tube to circuit components.

Mechanical Data

EIA Outline ................................... 3-1
EIA Base ...................................... 8DK

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.15 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 2.4 pf
Output ........................................ 2.4 pf
Grid to Plate ................................. 1.3 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 2.0 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 150 Ω
Amplification Factor .......................... 29
Plate Resistance (approx) ..................... 4.8K Ω
Transconductance .............................. 6000 µMho
Plate Current ................................. 10.0 mA

A horizontal ribbon.

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A horizontal ribbon.

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Thu, 30 Jun 2022 07:21:57 -0700