Telefunken E88CC to the right.
Specification
Model number: GU-81M
Manufacturer: Reflektor (Russian)
Max anode dissipation: 450 W
Max g2 dissipation: 120 W
Max g1 dissipation: 10 W
Max g2 voltage: 600 V
Max anode voltage: 3000 V
Max anode current: 600 mA
Max g2 current: 120 mA
Max g1 current: 20 mA
Input capacitance: 29 pF
Output capacitance: 24 pF
Anode to g2 capacitance: 0.1 pF
Max frequency: 50 MHz |
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Filament
voltage: 12.6 V
Filament current: 10.5 A
The cathode is thoriated, and the filament is made out of
carbonized tungsten.
Pin-out
Base diagram of the GU-81M.
Base: S6H
Pin 1: Filament
Pin 2: Filament
Pin 3: g1
Pin 4: g2
Pin 5: fm
Pin 6: g3
Top Pin 1: g3
Top Pin 2: a |
