TUBE BY1144L

GENERAL DESCRIPTION


picture BY1144L Vapour cooled transmitting triode with integral filament leads. The grid terminal is suitable for cathode drive operation.


TECHNICAL SPECIFICATIONS
ABRIDGED DATA
Anode dissipation 125 kW max
Anode voltage 14 kV max
Frequency for full ratings 27 MHz max
Output power (class C telegraphy) 200 kW
ELECTRICAL
Filament (two sections) thoriated tungsten
Filament voltage per section 9.6 V
Filament current per section 290 A
Surge filament current per section (peak) 700 A max
Filament cold resistance per section 4.0 mohm
Peak usable cathode current 175 A
Perveance 6.0 mA/V
Amplification factor
(Va = 9.0 kV, Ia = 5.0 A)
34
Mutual conductance
(Va = 9.0 kV, Ia = 5.0 A)
85 mA/V
Inter-electrode capacitances (average)
grid to anode
grid to filament
anode to filament

108 pF
259 pF
3.5 pF
MECHANICAL
Net weight 57 kg approx
Mounting position vertical, filament end up
Specifications may change without notice

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
Marconi B 6122 250
BD 272 250


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor

Econco

Kennetron


PRICE LEVEL (US$)
1 2 3 4 5 6
0 - 10 10 - 100 100 - 1000 1000 - 10,000 10,000 - 50,000 50,000 - 100,000