soundcraft spirit folio rac pac power supply

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jeffelse
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soundcraft spirit folio rac pac power supply

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!

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Scodiddly
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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.

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Scodiddly
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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
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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
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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..
The large print giveth, and the small print taketh away.

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