NJ7P Tube Database Search

6GM8
Medium-Mu Twin triode

Base & Bulb ( GE - 1973)

Substitute Data

Substitutes ................................... 6DJ8 6ES8

Mechanical Data

Bulb .......................................... T-6 1/2
Outline ....................................... 6-2
EIA Base ...................................... 9DE

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.33 A

Direct Interelectrode Capacitances (approx)

Each Triode
Input ......................................... 3.0 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 1.3 pf

Maximum Ratings (Design Center Values)

Each Triode
Plate Voltage ................................. 30 V
Plate Dissipation ............................. 0.6 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 6.3 V
Grid No. 1 Voltage ............................ -0.4 V
Amplification Factor .......................... 14
Transconductance .............................. 2600 µ
Plate Current ................................. 0.9 mA

Searched 20770 records on 3667 tube types

(c) 1995-2009 by NJ7P