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
Name
GU81
Type
pentode
Cathode type
tugsten,carbidized,direct heating
Application field
power amplification up to 50 MHz
Brief application
amplification, oscillation
Envelope
glass
Cooling method
air
Dimensions
260mmx202mm
Mass
1 kg
Filament voltage
12.6 V
Filament current
at most 11 A
Mutual conductance
4.5 to 6.5 mA/V
Gain coefficient
2.5 to 4
Output power
0.45 kW
Maximum anode voltage
550 V
Maximum operating frequency
50MHz