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3CX4500F3/YU-108 tube 3CX4500F3/YU-108
 
 
YU-108/3CX4500H3
YU-108/3CX4500H3
Special Offer!
USD1,195.00

Suggested Retail Price:
USD1,995.00
Our Regular Price:
USD1,495.00
 
3CX4500H3/YU-108 tube, electron tube Power Triode is a medium-mu all ceramic and metal forced-air cooled, external anode power triode with a maximum plate dissipation rating of 4500 watts. High power output as an amplifier, oscillator, or modulator may be obtained at moderate voltages. Please contact me when ordering for your special offer! Ken 561-434-3799 The YU-108 has a rugged, low inductance cylindrical filament-stem structure, which readily becomes a part of a linear filament tank circuit for VHF operation. The grid provides good shielding between the input and output circuits for grounded-grid applications and conveniently terminates in a ring between the plate and filament terminals. The YU-108 also has flexible leads for the filament connections, and the grid termination on a rugged flange, which may be used for mounting the tube in industrial applications. General Characteristics Electrical Filament: Thoriated Tungsten Voltage ................................................................................................... 7.0 +/- 0.35 V Current @ 7 V ....................................................................................... 78 A Amplification Factor ..................................................................................... 22 Direct Interelectrode Capacitance (grounded Cathode) Cin ......................................................................................................... 35 pF Cout....................................................................................................... 0.9 pF Cgp........................................................................................................ 20 pF Frequency of Maximum Rating (CW) .......................................................... 75 MHz PL108 / 3CX4500H3 Power Triode 2 Mechanical Maximum Overall Dimensions: Length ................................................................................................... 18.437 in, 46.83 cm Diameter................................................................................................ 6.125 in, 15.56 cm Operating Position ....................................................................................... Vertical, base up or down Net Weight (Approximate) ........................................................................... 9.5 lb, 4.3 kg Cooling ........................................................................................................ Forced Air Base ............................................................................................................ Special with Flying Leads Radio Frequency Power Amplifier or Oscillator Class C Telegraphy of FM Absolute Maximum Ratings DC Plate Voltage ......................................................................................... 6000 Volts DC Grid Voltage........................................................................................... -1000 Volts DC Plate Voltage ......................................................................................... 3.0 Amperes DC Grid Current .......................................................................................... 0.4 Ampere Grid Dissipation ........................................................................................... 150 Watts Plate Dissipation ......................................................................................... 4500 Watts Typical Operation (Frequencies to 30 MHz) Plate Voltage.................................................................................... 4000 6000 Vdc Plate Current ................................................................................... 2.67 3.0 Adc Grid Voltage ..................................................................................... -400 -600 Vdc Grid Current .................................................................................... 0.39 0.40 Adc Peak Positive Grid Voltage .............................................................. 300 350 v Driving Power .................................................................................. 275 380 W Plate Input Power ............................................................................ 10.7 16.5 kW Plate Dissipation ............................................................................. 2.4 3.2 kW Plate Output Power ......................................................................... 8.3 13.3 kW Approx. Load Impedance................................................................. 740 900 W Audio Frequency Power Amplifier and Modulator Class AB Absolute Maximum Ratings DC Plate Voltage ......................................................................................... 6000 Volts DC Plate Current ......................................................................................... 3.0 Amperes Plate Dissipation ......................................................................................... 4500 Watts Grid Dissipation ........................................................................................... 150 Watts PL108 / 3CX4500H3 Power Triode 3 Typical Operation Plate Voltage.................................................................................... 4000 5000 Vdc Grid Voltage ..................................................................................... -150 -200 Vdc Zero-Signal Plate Current ................................................................ 1.0 1.0 Adc Max. Signal Plate Current ................................................................ 2.76 4.80 Adc Effective Load (plate to plate) .......................................................... 3600 2450 W Peak af Grid Voltage (per tube) ....................................................... 270 400 V Maximum-Signal Nominal Driving Power ............................................................................ 37 147 W Maximum-Signal Plate Power Output ............................................................................ 6875 16,425 W Range Value for Equipment Design Min. Max. Filament: Current at 7.0 Volts ............................................................... 75 81 A Interelectrode Capacitance (grounded filament condition) Input ................................................................................................. 29.2 40.2 pF Output ............................................................................................. 0.6 1.2 pF Feedback......................................................................................... 16.8 23.2 pF Application Mechanical Mounting - Either tube must be mounted vertically, base up or down at the convenience of the designer. The PL108 is normally mounted by its grid flange, with filament power applied through the heavy flexible leads. Cooling - The maximum temperature rating for the anode core and the ceramic/metal seal areas of these tubes is 250O C, and sufficient forced-air cooling must be provided to assure operation at safe tube temperatures. Tube life is usually prolonged if cooling in excess of absolute minimum requirements is provided, for cooler tube temperatures. The filament leads of the PL108 are attached to the tube with soft solder, and care must therefore be taken to supply sufficient cooling to this area of the tube to maintain temperatures below 150O to avoid melting or loosening of these leads. Minimum air-flow requirements for the anode, to maintain anode-core and seal temperatures below 225OC with an inlet temperature of 50OC at sea level are shown, for operation below 30 MHz. Please contact me when ordering for your special offer! Ken 561-434-3799

 


Manufactured by:ISO certified factory China

Please contact me when ordering for your special offer! Ken 561-434-3799
 
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3CX4500F3/YU-108 tube 3CX4500F3/YU-108USD1,195.00 each

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