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AMPTEC - LA4000 - HF Amplifier

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    AMPTEC - LA4000 - HF Amplifier

    AMPTEC LA4000 HF Power Amplifier, designed for use on all short wave amateur bands from 1.8 to 29.7 MHz , including WARC bands and all modes.
    It is equipped with a two pieces of ceramic tetrode FU728F.
    Frequency coverage:
    Amateur Bands 1.8 – 29.7 MHz including WARC
    Power output:
    4000W in SSB and CW, 3000W in RTTY, AM and FM
    Input Power: Usually 60 to 90W for full Output
    Power Input Impedance: 50 Ohm, VSWR less than 1.5 : 1
    Power Gain: 17 dB
    Output Impedance: 50 Ohm unbalanced
    Maximum Output SWR: 2:1 SWR protection:
    Automatic switching to STBY, when reflected Power is 350W or higher
    Intermodulation distortion: 32dB below nominal output
    Suppression of harmonics: less than -50 dBc
    Tubes: 2x FU728F Ceramic tetrode Cooler:
    Centrifugal blower + Axial blower
    Transformers: 2 pcs of toroidal transformer 3kVA
    Width * Height * Depth
    Weight: 54 kg
    shipping weight about 69kg
    Protection circuits: - VSWR too high - Input power too high - Anode current too high - Grid current too high

    73 Al 4L5A