Description
The RS3012CL is a RF power triode designed for industrial 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 RS3012CL is a air cooled triode.
Electrical characteristics of RS3012CL
Cathode Filament thoriated tungsten
Filament voltage (+5%, -10%) 6 V
Filament current 64 A
Surge current (maximum) 192 A
Capacitances:
Grid to Anode 11 pF
Grid to Cathode 21 pF
Cathode to Anode (see note 2) 0.3 pF
Amplification factor (approx.) 35
Transconductance (Va: 2 kV, Ia: 1 A) 20 mA/V approx.
Mechanical characteristics of RS3012CL
Operating position vertical, anode up or down
Weight 6.5 kg (14.3 lbs) approx.
Dimensions see outline drawing
Maximum ratings of RS3012CL
Frequency 50 MHz
Anode voltage:
Oscillator mode 12 kV
Serial regulation 17 kV
Control grid voltage -1 kV
Control grid current:
At full load, CW 540 mA
At no load, CW 650 mA
Peak cathode current, CW 14 A
Anode dissipation 10 kW
Grid dissipation 200 W
Grid resistance (at blocked tube) 20 kΩ
Cooling
Anode cooling Forced Air
Cooling air flow and pressure gradient see cooling curves
Inlet air temperature 25 °C typ.
Temperature at any point on tube envelope 220 °C max.
Class C RF oscillator for industrial applications
| Frequency | < 50 | < 50 MHz |
| Anode voltage | 10 | 8 kV |
| Control grid bias | -550 | -550 V |
| RF control grid voltage | 910 | 890 V |
| Anode current | 2.3 | 1.9 A |
| Control grid current | 500 | 480 mA |
| Anode input power | 23 | 15.2 kW |
| Anode output power | 18 | 12 kW |
| Anode dissipation | 4.6 | 3 kW |
| Screen grid dissipation | 155 | 140 W |
| Grid resistance | 1.1 | 1.15 kΩ |
| Feedback ratio | 10 | 12.4 % |
| Oscillator efficiency | 78 | 79 % |
