Jump to content

psu with 12 and 5 V modifications needed?


clem!
 Share

Recommended Posts

hi,

I don't want use my MIDIbox SID any longer with two powersupplies. I've found a Switching-PSU from an external harddrive with 12V and 5V. Is it possible (secure and without humming) to place those connections behind the regulators 7812 and 7805? Will the power be stable enough or is it better to remove them and to solder in bridges there and connect the new psu at the power connectors?

best regards

clem!

Edited by clem!
Link to comment
Share on other sites

If it were me, I would likely steer clear of the hard-drive PSU. You don't know it's switching frequency (unless you're lucky and they put it on the label along with the wattage) and many of them use annoying connectors that may make finding a replacement difficult.

Instead, I would have a look at thread as it is one of the most in-depth PSU discussions I have found on the forums, and it's fairly recent. It does discuss some switching PSU options as well if a switcher is what you want to go with, though there are quite a few linear options discussed as well. It's lengthy, but a very good read and may help you decide what to do.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...