GI7B / GI-7B HF-VHF-UHF POWER COAXIAL TRIODE TUBES  NOS  

                                                                                                    LOT OF 4 Pcs.



ATENÇÃO, CLIENTES BRASILEIROS! PARA EVITAR ATRASOS NO DESEMBARAÇO ADUANEIRO, O ENDEREÇO DEVE CONTER O CPF-. O COMPRADOR É RESPONSÁVEL POR TODO O DESEMBARAÇO ADUANEIRO NO BRASIL.


Military equipment, "OTK", high reliability.

Military quality check passed (rhombus)


The tubes are never used. Old stock.

                The GI-7B (GI-70B) microwave triode operates as an oscillator and an amplifier in continuous-wave or pulsed mode with anode modulation in the centimetric and decimetric wavelength ranges. The GI-7B with a heat sink and the GI-70B with no heat sink. The tubes GI6b, GI7b, GI7bt, GI70b and GI70bt are all the same GI7b. GI7b and GI7bt are completed by factory with coolers(HgAl) and the others (#70) without.            
Type                                      Pulse tetrode
Cathode type                        Oxide, indirect heating
Application field                   Oscillation UHF in continous mode and pulse mode with anode modulation in special equipment
Brief application                                   Oscillation
Dimension                                              110,5mm X 65mm
Mass                                                        330 g
Normale anode voltage                          1,3 kV
Filament voltage                                     12,6 V
Filament current                                     1,8 - 2,05 A
Mutual conductance                                20 to 26 ma/V
Output power                                           350W/ 11 KW in pulse
Max. anod voltage                                    2,5KV/9 kV in pulse
Max. operating frequency                       18 cm
Ambient temparature ,°C                   -60 to +100
Relative humidity at up to +40 °C      98%    

      Decoding the triode marking: 

GI-7B GI - letters defining the type of lamp:

 GI - generator pulse;

 7 - the number of the ordinal number of the development of this type of lamp; 

B - a letter indicating the type of forced cooling: 

B - air.                         



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.