TUBE RS 1084 CJ / YL1570

GENERAL DESCRIPTION


photo RS 1084 CJ For broadcast and single-sideband transmitters

Coaxial metal-ceramic tetrode, water-cooled with integrated cooling jacket, for frequencies up to 250 MHz; particularly suitable for broadcast and single-sideband transmitters up to 60 kW medium and short wave.		 picture RS 1084 CJ


TECHNICAL SPECIFICATIONS
HEATING
Heater voltage 12,5 V
Heater current ≈ 200 A
Heating direct
Cathode thoriated tungsten
CHARACTERISTICS
Emission current 100 A
Amplification factor of screen grid 6,6
Transconductance 84 mA/V
CAPACITANCES
Cathode/control grid ≈ 136 pF
Cathode/screen grid ≈ 12 pF
Cathode/anode ≈ 0,3 pF
Control grid/screen grid ≈ 165 pF
Control grid/anode ≈ 1,9 pF
Screen grid/anode ≈ 43 pF
Specifications may change without notice

Tube mounting

Axis vertical, anode up or down.

Maximum tube surface temperature

The temperature of the tube's metal-ceramic seals must not exceed 220 °C at any point. The header sockets for transmitter operation are equipped with an air inlet port through which the cooling air is evenly distributed over the connectors. The air flow rate required to keep below the specified maximum temperature is 0,6 m3/min at a pressure drop of 1,5 mbar. If separate connectors are used, an evenly distributed air flow across these parts must be provided.

Water cooling

The cooling water diagram is valid for 35 °C water inlet temperature. The pressure of the cooling water must not exceed 6 bar.

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
Siemens WR Send 50 K-04 50


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor
Thales Econco

Kennetron


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