DIY AC Power supply for Behringer mixers

[@thierrydelbaere4372]

Hi Viorel, first thanks for making this video based on my comment on the other video, much appreciated, as well as the good explanations you provide! Many thanks! Still I realized this is slightly beyond what I have at hand to do it myself 😅, I found an alternative transformer from another brand which is compatible (I'll just need to adapt the connection).

[@viocaia]

Perfect, as long as there are 2 x AC voltage from 15 to 19V it should work. All the best!

[@JoselitoRocero]

Thank you for teaching us you are very professional from phillipines MABUHAY!!!

[@viocaia]

@@JoselitoRocero No teaching, just helping.Thanks!

[@ChromosomeSyndicate]

Mister Viorel the first time I heard your voice it reminds me on the voice of Wolfgang Flür from Kraftwerk . 🎉

[@viocaia]

Really, I live Kraftwerk, I didn't notice that.

[@ChromosomeSyndicate]

@@viocaia serious !

[@viocaia]

@@ChromosomeSyndicate of course!

[@edgarjnev]

Hello, thank you for your explanation, very good video, I have a question that I would appreciate if you could answer. When measuring it with the voltmeter, my power supply shows 21 to 24 V instead of what you mention of 17 or 18V. The XLR inputs on the audio console stopped working. Is it possible that my power supply is bad? and has that made the entries no longer work? Everything else is perfect, even the 1/4 inputs and the console works very well. Thanks for your help.

[@viocaia]

It's normal to show more than 21V AC, the voltage goes down after rectifier to DC and regulators. 48V for XLT+R it's supplied by a internal circuit, I don't have the schematic. BUt look for a capacitor like 1000uf at 75 or more V, that should be related to phantom and check the parts around.

[@edgarjnev]

@@viocaia thanks for you answer!!!! thank you!

[@viocaia]

@@edgarjnev Anytime.

[@2001mmaarrxx]

18.5 250ma would be ok for a 1202fx?

[@viocaia]

Kind of limit, but it should work...you need a double 18.5V AC !

[@LTC59]

AC = Alternating Current?

[@viocaia]

Right! The output, it's alternating current. Most of the wall power supplies comes with direct current, this one has no rectifier and filters on board, bare AC.