GI-7B,GI7BB Microwave Powertube
GI-7B (GI7B)Tube. New in Box!
HF-VHF-UHF POWER COAXIAL TRIODE
The GI-7B (GI7B) 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 (GI7B) 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.
See factory info
Any PA on this tubes: See Dentron MLA-2500 Conversion Project with GI7B tube
Click on picture:
See also Dentron GLA-1000 conversion,nice project. Click on picture:
Two GI-7B(GI7B) tubes witch 1500V anode plate give output power more 800 W on 1.8-432 MHz!
The GI7B Amplifier has the simplest scheme. For GI7B(GI-7B) tubes usually is not need Socket. For frequencies below 500 MHz, GI7B tube is simply inserted the Grid in metal of body PA
These GI7B are coaxial microwave tubes are capable to generate on VHF. Any spurious capacitances, inductances and resistances imported Socket can cause it. At the Russian electronic industry interposed GI7B tubes directly into devices. And it was the best solution for GI7B!