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A horizontal ribbon.

6EU7
Twin Triode

EIA Base & Outline

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

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used ain high-gain, resistance-coupled, low-level audio-amplifier applications where low hum and non-microphonic characteristics are important,

Source ........................................ RCA RC-29 - 1975
such as microphone amplifiers and preamplifiers for phonographs. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
EIA Outline ................................... 6-2
EIA Base ...................................... 9LS
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Each Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 1.6 pf
Output ........................................ 0.2 pf
Grid to Plate ................................. 1.5 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1.2 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 80K Ω
Transconductance .............................. 1250 µMho
Plate Current ................................. 0.5 mA

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -2 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 62.5K Ω
Transconductance .............................. 1600 µMho
Plate Current ................................. 1.2 mA

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Thu, 30 Jun 2022 16:04:11 -0700