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MegaWatt vs. Chinese Imitation 30 amp switching power supply comparison

Discussion in 'Product Reviews' started by Moleculo, Mar 19, 2015.

  1. russ

    russ Member

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    That's great news!!
    I just bought one yesterday and am expecting it to arrive early part of next week..
    Sounds like a very nice power supply and has a lot satisfying owners..


     
    Oatmeal likes this.

  2. Robb

    Robb Yup

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    Russ; are you FINALLY putting up a base station?
    Cool!
     
    binrat likes this.
  3. Megawatt

    Megawatt Contributing Site Sponsor

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    Thanks for the kind words. I am here if anybody needs any help.
    Thank you,
    John
     
    Oatmeal likes this.
  4. 222DBFL

    222DBFL Sr. Member

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    Been running the S400-12 for a while now on an Icom 746. I've also used a 2 pill Toshiba 2879 amp on it as well. It stays on most of time I am home. I just unplug it when I am at work or leave the house for a long duration. The thing has been flawless thus far and no hash on any freq that I am able to receive with my radio. Glad to have it and wouldn't hesitate to purchase another. Next one will be the S700-12. That is if the one I have ever quits! Great product and the support is above and beyond what most would get elsewhere IMO. Keep up the great work Megawatt!!(y):)
     
  5. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Dude you are going to be waiting for a while. I recently ran my S400's in what might have been considered to be abuse. Full load 24 hours a day I used them to electrolysis away rust on three sections of a Rohn tower. The process worked great and the power supplies had no detrimental effects. Back on the work bench power radios and amplifiers.
     
    222DBFL likes this.
  6. Oatmeal

    Oatmeal Active Member

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    Russ, when you receive your PS, you should hook a volt meter on it and check the voltage, my PS I had to set it up to 13.8v, it's easy to do....
     
  7. Klondike Mike

    Klondike Mike Well-Known Member

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    ... time to start testing some 48v switching supplies.
     
  8. firerunner

    firerunner Active Member

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    Anyone had the fan start making noise and if so how you fixed it? I have the 36 amp megawatt. Thanks.
     
  9. Megawatt

    Megawatt Contributing Site Sponsor

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    Sometime when dust or dirt get in the fan bushing is can make noise. A drop of oil on the bushing will fix it or you can PM me and I will take care of it. All the units will soon be equipped with a duel ball bearing fans. Just testing is now.
     
  10. firerunner

    firerunner Active Member

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    OK thanks John i'll try that. Can you just do it from outside or do you have to open it up? Chuck
     
  11. Megawatt

    Megawatt Contributing Site Sponsor

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    You have to do it from the inside. Take the stickers off the top of the fan. Put in two drops of oil and put the stickers back. PM me your address.
     
  12. firerunner

    firerunner Active Member

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    I sent you a PM John, thanks again for the fast customer service.
     
  13. Megawatt

    Megawatt Contributing Site Sponsor

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    Anytime
     
  14. 222DBFL

    222DBFL Sr. Member

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    Mine makes a noise every once in a while like the fan is out of balance. Tap it a few times and it goes away. Only does this when the fan is dirty. I blow the unit out and it works flawlessly again!! But yes the fan could be a bit more quiet. Not that it's that bad, but it's just a touch louder than I would like it to be. As far as performance, the s400-12 has been a workhorse for me and I wouldn't hesitate to buy another if I needed it!! Freer supplies with feet CS!! Hard to beat that!!!
     
  15. rabbiporkchop

    rabbiporkchop Well-Known Member

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    How
    much do they run?
     

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