NJ7P SQL Tube Database Query

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6CL5
Beam Power Amplifier

EIA Base & Outline

EIA Base: 8GDEIA Bulb: 12-21

Substitute Data

Preferred Substitutes ......................... 6CB5
Source ........................................ ARRL HB - 1964

Mechanical Data

Source ........................................ ARRL HB - 1964
Bulb .......................................... T-12
Base Type ..................................... Short Medium Shell Octal 8-Pin
EIA Outline ................................... 12-21
EIA Base ...................................... 8GD
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 6.3 V
Heater Current ................................ 2.5 A

Direct Interelectrode Capacitances (approx)

Beam Pentode
Source ........................................ ARRL HB - 1964
Input ......................................... 20 pf
Output ........................................ 11.5 pf
Grid to Plate ................................. 0.7 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 700 V
Grid No. 2 Voltage ............................ 200 V
Plate Dissipation ............................. 25 W
Grid No. 2 Dissipation ........................ 4.0 W

Characteristics and Typical Operation

Hortz Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 175 V
Grid No. 2 Voltage ............................ 175 V
Grid No. 1 Voltage ............................ -40 V
Plate Resistance (approx) ..................... 6K Ω
Transconductance .............................. 6500 µMho
Plate Current ................................. 90 mA
Grid No. 2 Current ............................ 7 mA

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Wed, 08 Dec 2021 12:07:43 -0700