TUBE RS 2054 SK

GENERAL DESCRIPTION


photo RS 2054 SK Coaxial metal-ceramic tetrode, vapor-condensation-cooled, particularly suitable for 100 kW broadcast transmitters up to 30 MHz, for grid-current free operated modulators in transmitters up to 300 kW, and for use as switching tube in PDM transmitters up to 100 kW, as well as for RF amplifiers up to 150 kW/up to 150 MHz. picture RS 2054 SK


TECHNICAL SPECIFICATIONS
HEATING
Heater voltage 15 V
Heater current ±180 A
Heating direct
Cathode thoriated tungsten
CHARACTERISTICS
Emission current 150 A
Amplification factor of screen grid 4,5
Transconductance 90 mA/V
CAPACITANCES
Cathode/control grid ±170 pF
Cathode/screen grid ±16 pF
Cathode/anode ±0,5 pF
Control grid/screen grid ±300 pF
Control grid/anode ±3,0 pF
Screen grid/anode ±70 pF
Specifications may change without notice

Tube mounting

Axis vertical, anode up or down.

Maximum tube surface temperature

The maximum temperature of the tube surface must not exceed 220 °C. The maximum permissible temperature difference at the tube circumference is 50 °C. The temperature gradient at the tube must not exceed 25 °C/cm. The surface temperature will remain below the maximum values if an air stream of approx. 2 to 3 m3/min is directed onto the tube terminals.

Vapor condensation cooling

The cooling water diagram gives the minimum water flow rate (distilled or deionized water) for maximum anode dissipation, as well as pressure drop and water outlet temperature at 65 °C water inlet temperature. The diagram applies to a hermetically sealed cooling system with 1,5 bar overpressure at the cooling water outlet with a maximum permissible outlet temperature of 100 °C.

Operation with open cooling cycle (without overpressure) is possible if the maximum outlet temperature remains below 65 °C (sea level, air pressure ±1 bar) with lower inlet temperature and, if required, increased water flow rate.

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
RIZ-Transmitters OR 50 K-01/A 50
OR 100 K-01/A 100


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor
Thales Electron Devices Econco


PRICE LEVEL (US$)
1 2 3 4 5 6
0 - 10 10 - 100 100 - 1000 1000 - 10,000 10,000 - 50,000 50,000 - 100,000