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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Bi-polar power supply
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DrKoester



Joined: Mar 17, 2009
Posts: 18
Location: Highland Park, NJ

PostPosted: Sun Jan 29, 2012 11:56 am    Post subject: Bi-polar power supply Reply with quote  Mark this post and the followings unread

It's been about 2yrs since I put down the MFOS sub-commander ai vnd I'm back to it now. I previously had about +13V and -10V from the supply I built from Ray's board.

I replace the voltage regulators and now I get +11.90V and -15.90V. The regulators I'm using are marked LM7912C.
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DrKoester



Joined: Mar 17, 2009
Posts: 18
Location: Highland Park, NJ

PostPosted: Sun Jan 29, 2012 12:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

OK I resolved that -- lifted trace on the middle leg of the 7812 that gives the negative voltage. I've now got -12.03V there.
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