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6HR5
Beam Power Pentode

Base & Bulb ( GE - 1973)

Substitute Data

Substitutes ................................... 6AQ5 6HG5

Mechanical Data

Bulb .......................................... T-5 1/2
Outline ....................................... 5-3
EIA Base ...................................... 7BZ

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 8.3 pf
Output ........................................ 8.2 pf
Grid to Plate ................................. 0.35 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 260 V
Grid No. 2 Voltage ............................ 270 V
Plate Dissipation ............................. 8.0 W
Grid No. 2 Dissipation ........................ 2.0 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 260 V
Grid No. 2 Voltage ............................ 270 V
Grid No. 1 Voltage ............................ -19 V
Transconductance .............................. 3600 µ
Plate Current ................................. 30 mA
Grid No. 2 Current ............................ 2.3 mA

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