The ACOM 1000 HF Linear Amplifier is the world's best value in an amateur HF amplifier. 

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The ACOM 1000 gives you a comfortable 1000 watts output on all amateur bands from 160 through 6 meters.

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Easy to operate

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The plate-load True Resistance Indicator (TRI) is a powerful tuning aid which, together with the automatically controlled input attenuator, helps the operator to quickly and precisely match antennas (5-10 seconds typically). The auto-operate function (when enabled) maintains the amplifier in OPERATE mode for you, thus saving manual operations and time.

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No antenna tuners

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The amplifier will perform the functions of an antenna tuner for VSWR up to 3:1, thus enabling you change antennas faster and use them over a wider frequency range (saving tuning time).

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User-friendly

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An amplifier that is both user-friendly, and that looks after itself. It is designed to safely withstand up to 300W reflected power, up to 100 milliseconds duration of drive spikes, drive RF "tails" after a PTT or KEY release, operator's inadvertent tuning errors etc. It would also not cease to function with a "soft" AC line and would deliver more than half power at only 75% of nominal mains voltage. Withstands up to 10 milliseconds (down to zero) voltage drops, and up to +15% line voltage spikes - important particularly when used at field days, Dxpeditions, etc.

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LCD comment display

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Text messages,12 parameters, and strip peak-reading PEP meter displayed on a dot-matrix, back-lighted LCD. LED indicators are provided for OPERATE, attenuator-on, and ON/OFF conditions.

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Easy maintenance

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Signatures of the amplifier internal status are stored in a nonvolatile memory for 7 most recent auto protection trips. This information is used for diagnostics.

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Virtually silent QSK

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The input bypassing and the vacuum antenna relays are very quiet even in CW mode due to their special mounting.

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Broadband input matching

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Resulting in very good load to the transceiver over the entire spectrum 1.8-54MHz.

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Single 4CX800A (GU74B)

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A Svetlana high performance ceramic-metal tetrode with plate dissipation of 800W is employed (forced air cooling, grid-driven).

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Tube protection

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Permanent monitoring and protection of plate and grid voltages and currents, as well as of the exhaust temperature.