GU-8M1/GU81 TRANSMITTING PENTODE TUBE NEW IN BOX /OTK /RHOMBUS

                                                        NEW IN BOX

          Military equipment,"OTK", high reliability.

             Military quality check passed (rhombus)                                             
                            


All tubes were tested for filament continuity.
                                                       
                                                                         LOT OF 1

                  

NameGU81
Typepentode
Cathode typetugsten,carbidized,direct heating
Application fieldpower amplification up to 50 MHz
Brief applicationamplification, oscillation
Envelopeglass
Cooling methodair
Dimensions260mmx202mm
Mass1 kg
Filament voltage12.6 V
Filament currentat most 11 A
Mutual conductance4.5 to 6.5 mA/V
Gain coefficient2.5 to 4
Output power0.45 kW
Maximum anode voltage550 V
Maximum operating frequency50MHz