NJ7P SQL Tube Database Query

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6HM6
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9PMEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 6HT6 6JC6
Substitutes ................................... 6KT6
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-2
EIA Base ...................................... 9PM

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ GE - 1973
Input ......................................... 8.7 pf
Output ........................................ 3 pf
Grid to Plate ................................. 0.024 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 2.5 W
Grid No. 2 Dissipation ........................ 0.6 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 56 Ω
Plate Resistance (approx) ..................... 156K Ω
Transconductance .............................. 15000 µMho
Plate Current ................................. 13 mA
Grid No. 2 Current ............................ 3.2 mA

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Sat, 25 Mar 2023 19:27:51 -0700