GU-81M High Power 750W 50MHz Pentode GU81M GU81 HAM Transmitting Generator Tube
TESTED!!!
NEW IN BOX
Military equipment,"OTK", high reliability.
Military quality check passed (rhombus)
All tubes were tested for filament continuity.
LOT OF 2 pcs
Name GU81M
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
Please allow for the following shipping times:
EU countries: 5-8 business days, on rare occasions a few days more
USA: 10-15 business days, on rare occasions more
South East Asia (Japan, Singapore, S. Korea, Hong Kong, Taiwan etc) 10 business days, on rare occasions more
India, China, Russia, Kazakhstan, Pakistan, Indonesia, Malaysia, Thailand, Australia, South Africa etc: at least 15 business days, but frequently around 25 business days
Please note that shipping cost is calculated at average. If you have any objections please contact me for a specific quotation.