NJ7P SQL Tube Database Query

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6111
Medium-Mu Twin Triode

EIA Base & Outline

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 ...................................... 8DG

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Each Section
Input ......................................... 2.1 pf
Output ........................................ 1.3 pf
Grid to Plate ................................. 1.4 pf

Maximum Ratings (Design Center Values)

Each Section
Plate Voltage ................................. 165 V
Plate Dissipation ............................. 1.0 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 220 Ω
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 4000 Ω
Transconductance .............................. 5000 µ
Plate Current ................................. 8.5 mA

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Mon, 30 Jan 2023 01:19:34 -0700