preps
Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: DIY Power Supplies- Transformers! Save $$

  1. #1
    Join Date
    Dec 2011
    Location
    Jersey
    Posts
    346
    Thanks
    6
    Thanked 75 Times in 49 Posts
    Downloads
    6
    Uploads
    11

    DIY Power Supplies- Transformers! Save $$

    Tip- If you have access to old UPS Battery Backup Systems (APC, TripLite) that your company or anyone is tossing to the trash- GRAB EM! Usually the larger units have 1 or 2 BIG transformers in there - 35a/70a/100a - THE SAME ONES FATBOY SELLS and he's pretty much getting them from the same source. I was fortunate to nab 4x 70a transformers from the trash pile. Use them to build an unregulated supply for your amplifier -which will float at 18-20v and hold 14.5 volts under load. All the amp builders use these in their base amps and power supplies (with exception of the Big Peter D transformers).
    Another good source for these things are larger power Inverters (usually rated for 1500 watts and above).

    Here's a diagram on what all the different wires do. 99% of the transformers that were pulled from inverters/battery backup units will have the same color codes..
    Attached Images Attached Images  
    Last edited by noisemaker; 12-06-2011 at 01:21 PM.

    noizybuilt.com

  2. #2
    Join Date
    Nov 2011
    Location
    North NJ
    Posts
    563
    Thanks
    13
    Thanked 459 Times in 110 Posts
    Downloads
    166
    Uploads
    829

    My Social Networking

    Follow doughboy On Twitter Add doughboy on Facebook
    Visit doughboy's Youtube Channel
    nice tip i will be looking around for some old ups systems next time i go to the dump

  3. #3
    Join Date
    Nov 2011
    Location
    in the planet
    Posts
    628
    Thanks
    185
    Thanked 206 Times in 102 Posts
    Downloads
    10
    Uploads
    0
    Now thats some awsome knowledge right there . thank you .

  4. #4
    Join Date
    Jan 2012
    Location
    Louisiana
    Posts
    10
    Thanks
    0
    Thanked 1 Time in 1 Post
    Downloads
    0
    Uploads
    0
    Very handy information that I never realized or even thought about before. I think it's time to take a trip to the trash heap this weekend!

  5. #5
    Join Date
    Dec 2011
    Location
    pa
    Posts
    30
    Thanks
    0
    Thanked 6 Times in 4 Posts
    Downloads
    0
    Uploads
    0
    even blown up its still too small to read .

  6. #6
    Join Date
    Mar 2012
    Location
    Litcfield,New Hampshire
    Posts
    197
    Thanks
    58
    Thanked 39 Times in 21 Posts
    Downloads
    0
    Uploads
    0
    i've got a question-i do have access to UPS systems from time to time.does anyone know of a source that would be willing to purchase the transformer or are they useless to a builder?i ask because i tend to sell them off for almost nothing because the batteries are junk so the people that i deal with don't pay much for them since they will have to replace the batteries.
    it would be nice to make a few more bucks at the end of the month.i am not greedy,just curious if i could get a little more for these things.i'd be willing of course,to pull them out and ship them only what they need,if anyone knows.thanks-Gravy626

  7. #7
    Join Date
    May 2012
    Location
    Paterson NJ
    Posts
    47
    Thanks
    29
    Thanked 37 Times in 20 Posts
    Downloads
    0
    Uploads
    0
    Mistah Gravy what do you have and how much each? I have built many supplies with the pulled transformers and have had great luck with them. They are cheaper than buying NEW units. If you stack them to be a little more than you need they are awesome. I built a 5 pill base box with 2 of the 70a units and never drop below 16.5v with the amp giving all it has.

  8. #8
    Join Date
    May 2012
    Location
    Paterson NJ
    Posts
    47
    Thanks
    29
    Thanked 37 Times in 20 Posts
    Downloads
    0
    Uploads
    0
    Quote Originally Posted by john doe View Post
    even blown up its still too small to read .
    If you go to http://www.icamanufacturing.com/store/Default.aspx and under the transformers you can find a bigger pic.

  9. #9
    Join Date
    May 2012
    Location
    Mumbai
    Posts
    7
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Downloads
    0
    Uploads
    0
    Quote Originally Posted by noisemaker View Post
    Tip- If you have access to old UPS Battery Backup Systems (APC, TripLite) that your company or anyone is tossing to the trash- GRAB EM! Usually the larger units have 1 or 2 BIG transformers in there - 35a/70a/100a - THE SAME ONES FATBOY SELLS and he's pretty much getting them from the same source. I was fortunate to nab 4x 70a transformers from the trash pile. Use them to build an unregulated supply for your amplifier -which will float at 18-20v and hold 14.5 volts under load. All the amp builders use these in their base amps and power supplies (with exception of the Big Peter D transformers).
    Another good source for these things are larger power Inverters (usually rated for 1500 watts and above).

    Here's a diagram on what all the different wires do. 99% of the transformers that were pulled from inverters/battery backup units will have the same color codes..
    This power supply information is a very helpful for us and i want to read more about it. I have seen that most of builders using it and it is good for them. I am exited to know that how many ways i can use it and how much watts capacity of inverter.

  10. #10
    Join Date
    Mar 2012
    Location
    Litcfield,New Hampshire
    Posts
    197
    Thanks
    58
    Thanked 39 Times in 21 Posts
    Downloads
    0
    Uploads
    0
    picked up a UPS system at our local transfer station this afternoon.we have one of those "leave something,or take something" tables and i often leave and also take from this table.today was a day to take from the table because there was a fully functioning UPS system on the table.it works so i am not sure what i will do with it but i am pretty sure i need to make a power supply for some equipment i have so i'll be checking out this DIY set of directions tomorrow!!!!

Visitors found this page by searching for

diy power transformer

diy electric transformerhomemade ups transformerhomemade electric transformerhomemade using ups transformerpowered by vBulletin general lee cb radioBuild a electric transformer (DIY)diy electrical transformerdiy cb power supplypower transformers diyhomemade cb power supplyhomemade 35a power supplygood homemade cb powesupplysalvaged ups transformerdiy power transformerstransformer pa522diypower transformertransformer in cb radiogeneral lee cb radio power transformer t1homemade electric transformers base for diy transformershow to make a home made power supply for cb 20v 100a transformerdiy power inverter using transformerThe rating and amprage of transformer for1500watts inverter

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •