Description
The RS3040CL is a RF power triode designed for dielectric heating applications. This tube uses a coaxial design and metal-ceramic technology. This triode may be operated in CW or pulse modes. For operation in pulse mode, the parameters depend on each equipment characteristics. Contact us for specific information. The RS3040CL is a forced air cooled triode.
Electrical characteristics of RS3040CL
Cathode Filament thoriated tungsten
Filament voltage 8 V
Filament current 185 A
Heater surge current (maximum) 560 A
Amplification factor 20
Capacitances:
Grid to Anode 29 pF
Grid to Cathode 78 pF
Cathode to Anode (see note 2) 2 pF
Mechanical characteristics of RS3040CL
Operating position vertical
Weight 13 kg (28.7 lbs) approx.
Dimensions see outline diagram
Cooling (air-cooling) of RS3040CL
Typical air temperature at tube inlet 25 °C
Minimum air flow cooling (for Pa=25 kW) 21 m³/min
Corresponding air pressure drop 11 mbar
Maximum temperature at any point on the tube envelope 220 °C
Maximum ratings of RS3040CL
Frequency 100 MHz
Anode voltage:
Up to 30 MHz 14 kV
From 30 to 50 MHz 10 kV
From 50 to 100 MHz 7.5 kV
Control grid voltage -1500 V
Control grid current:
At full load up to 30 MHz 1.6 A
At off load up to 30 MHz 1.9 A
Peak cathode current 45 A
Anode dissipation 25 kW
Grid dissipation:
Up to 30 MHz 820 W
From 30 to 50 MHz 700 W
From 50 to 100 MHz 600 W
Grid resistance 12 KΩ
RS3040CL as Class C RF oscillator for industrial applications
| Frequency | <30 | <30 MHz |
| Anode voltage | 12 | 12 kV |
| Anode current | 6.3 | 5.2 A |
| Anode input power | 76 | 62.4 kW |
| Anode output power | 60 | 50 kW |
| Anode dissipation | 14 | 11 kW |
| Grid current, on load | 1.2 | 1 A |
| Grid dissipation | 470 | 350 W |
| Grid resistance | 920 | 1000 Ω |
| Feedback ratio | 14.5 | 12.7 % |
| Oscillator efficiency | 79 | 80 % |
