The RS 3500 CJ is a RF power triode designed specifically for industrial applications. This tube uses a coaxial design and metal-ceramic technology. This triode is designed to operate in CW mode. For operation in pulse mode, the parameters depend on each equipment characteristics, contact us for specific information. The RS 3500 CJ is a water cooled triode. It’s mainly used as C self-oscillation for the industry high frequency heating equipment. Max oscillator power is 750KW.
Electrical characteristics
Filament thoriated tungsten
Filament voltage (+ 5 %, - 10 %) 17.5 V
Filament current 510 A
Surge current 1 530 A max.
Capacitance:
grid-anode 135 pF
grid-cathode 350 pF
cathode-anode 10 pF
Amplification factor 21 approx.
Transconductance (Va: 4 kV, Ia: 10 A)
180 mA/V approx.
Mechanical characteristics
Operating position vertical, anode up or down
Weight 67 kg approx.
High 688.5mm max.
Diameter 310mm max.
Maximum ratings
Frequency 30 MHz
Anode voltage:
up to 15 MHz 18 kV
from 15 to 30 MHz 14 kV
Control-grid voltage - 2.5 kV
Control-grid current (F < 15 MHz):
at full load, CW 11 A
at no load, CW 14 A
Peak cathode current, CW 350 A
Anode dissipation 300 kW
Grid dissipation:
up to 15 MHz 7 kW
from 15 to 30 MHz 5 kW
Grid resistance (at blocked tube) 3 kΩ
Cooling
Anode cooling water
Cooling water inlet pressure 5 bar max.
Water inlet temperature 35 °C max.
Temperature at any point on tube envelope 220 °C max.
Air flow on tube terminal side 5 m3/mn