RE: Vortex power supply - AC, but can take DC?

["Goddard, Duncan" <goddard.duncan@mtvne.com>]

why not just modify one of y'r DC supplies? take out the bridge rectifier & smoothing capacitor & run the AC straight to the vortex.

 

the jamman is slightly fussy about the voltage it gets, & if one extends the power cable on the low voltage side, or runs the psu off of slightly low mains supply, the jamman will keep resetting itself.

 

my understanding is that the vortex has slightly less inside it, & uses slightly less current.

 

d.

---

From: Ryan Reid [mailto:ryanreidfl@gmail.com]
Sent: Friday, December 21, 2007 2:53 AM
To: Loopers-Delight@loopers-delight.com
Subject: Vortex power supply - AC, but can take DC?

Hello, 

It feels a bit tacky to make my first post to the list 
a query. But I'm in a bit of a bind.

I purchased a Vortex, of course, 
without an adapter. Impulsively, I plugged in a supply I have that's 12.5VAC 
2500mA - I know, stupid. But with eBay and UPS and all, there was kind of a 
pressure to make sure it worked. In fact, it did, and I ran it for about 10 
minutes. I decided to stop there though, as the over-voltage might cause 
problems in the longer term. 

I have already spent $100 on power supplies 
in the last couple of months, and so I'm trying to be as thrifty as possible. 
Honestly, I didn't research the Vortex PS requirement until it arrived. The best 
deals I've found for a pro-audio 9VAC 1000mA supply are around $20-25. In 
searching the archives, I found someone stated that the Vortex alone can run on 
DC, while its "adapter-mates" like the Jamman cannot. Can anyone confirm or 
contradict this? If it's true, I assume it would need a few more volts. I have 
tons of extra DC supplies, and can easily build a highly-filtered one, but 
transformers in this range are a bit pricey themselves. 

Thank you, and 
I'll be sure to be more of a contributor than an info-leech in the future. 

-R