Recording Techniques, People Skills, Gear, Recording Spaces, Computers, and DIY
Moderators: drumsound, tomb
-
jeffelse
- audio school
- Posts: 4
- Joined: Sun Feb 03, 2013 10:05 pm
- Location: detroit
Post
by jeffelse » Sun Feb 03, 2013 10:23 pm
greetings all,
I am trying to make a power supply for a soundcraft spirit folio rac pac mixer, to avoid paying $90 for the original. The user guide gives the following info for the 4-pin xlr power connector:
pin 1: 20V AC
pin 2: n/c
pin 3: 0V
pin 4: 20V AC
does this mean that pins 1 and 4 should just be jumpered together? or do they need to be seperate rails or something?
i can't find any info on the amperage draw of the mixer, but i assume that this power supply of 20VAC/1800mA would be sufficient..
http://www.ebay.com/itm/Hon-Kwang-Class ... 3858123%26
show me the err of my ways.
thanks in advance!
-
Scodiddly
- genitals didn't survive the freeze
- Posts: 3981
- Joined: Wed Dec 10, 2003 6:38 am
- Location: Mundelein, IL, USA
-
Contact:
Post
by Scodiddly » Mon Feb 04, 2013 5:53 am
It means you need a 40 volt transformer with a center tap, or one with two 20 volt windings.
Are you missing the original, or is it broken? I could check mine for ratings.
-
Scodiddly
- genitals didn't survive the freeze
- Posts: 3981
- Joined: Wed Dec 10, 2003 6:38 am
- Location: Mundelein, IL, USA
-
Contact:
Post
by Scodiddly » Mon Feb 04, 2013 6:08 am
I went and checked. The PSU for my Rac Pac has two "18.4" volt outputs (ie the two windings or the center tap), total current 800mA.
-
jeffelse
- audio school
- Posts: 4
- Joined: Sun Feb 03, 2013 10:05 pm
- Location: detroit
Post
by jeffelse » Mon Feb 04, 2013 10:25 pm
hmm.. yes, it was lost in some move sometime in the past few years. i'm having trouble finding such a transformer on the webs. any idea where i can?
thanks!
-
Rigsby
- mixes from purgatory
- Posts: 2908
- Joined: Tue Mar 23, 2004 12:34 am
- Location: London, England
-
Contact:
Post
by Rigsby » Sun Dec 11, 2016 8:34 am
I know this thread is crazy old but I'm just wondering if you managed to build a new supply? I lost mine in a move last year and my rac pac was still going strong 'til then, I'd love to get back to using it. I've contacted soundcraft but just in case I need to build one..
Who is online
Users browsing this forum: No registered users and 119 guests