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Acom 1000 110V voltage

Discussion in 'Amateur Radio Amplifiers' started by W1AL, May 19, 2020.

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  1. W1AL

    W1AL XML Subscriber QRZ Page

    Can anyone direct me to the proper procedure to change an Acom 1000 HF amplifier from a 240V plug setup to a 110V plug setup? I just purchased an amp used and I need to change it over. Thanks!
     
  2. KA9JLM

    KA9JLM Ham Member QRZ Page

    You should consult the user manual. It should be on a dedicated circuit.

    https://static.dxengineering.com/global/images/instructions/aom-1000.pdf
     
  3. K8DO

    K8DO Ham Member QRZ Page

    ACOM-bg.com. Has PDF download manual
     
  4. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Per the manual "it will be necessary to contact your dealer:"
    acom 1000 (2).PNG

    The schematic indicates there are internal jumpers to set the line voltage but I have no idea how difficult those are to access and if they are solder-in, or plugs, or what:
    acom 1000.PNG

    Per ACOM, their dealers in the U.S. are DX Engineering and HRO. I'd probably reach out to DXE to see what they say.
     
  5. W5IEI

    W5IEI Premium Subscriber QRZ Page

    I'd never run any amp capable of over 500 watts on 120.
     
  6. W9RAC

    W9RAC Platinum Subscriber Platinum Subscriber QRZ Page

    Run a 240v line, not much to it and your amp will thank you. Not trying to be a wise guy but Id make a effort to use it 240 unless its completely impossible. 73 Rich
     
  7. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Yes, an amplifier rated for the ACOM 1000's power really should be used with a 240V mains. Although it may "operate" from a 120V mains, there's a good reason they pre-wire them for 240V only...the amp would overload many 120V residential circuits, which are 15A -- especially if used with a high duty-cycle mode, or when "tuning up."
     
  8. KA9JLM

    KA9JLM Ham Member QRZ Page

    It should be on a dedicated 20 Amp circuit.

    If a wire pull is needed, 240 Volt would be the way to go.
     
    N6UH likes this.
  9. W1AL

    W1AL XML Subscriber QRZ Page

    Thanks guys. Acom sent me the insutructions to change it over. I've been told that I can run it on 125V provided I keep it down to 600W or less. My antenna tuner (LDG at600 ProII) only goes as high as 600 anyway. Does that sound feasible if I keep the power down?
     
  10. W5IEI

    W5IEI Premium Subscriber QRZ Page

    Well,I guess,but why buy a thoroughbred to rope calves ?:)
     
    AD5HR likes this.

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