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

[andy butler <akbutler@tiscali.co.uk>]

Ryan Reid wrote:
> 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.

Well, someone has to ask,
or very little info will be available :-)

> 
> 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.

quite right

> 
> 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.

It's possible, in the same way that it's possible that the 12.5V supply 
might 
not cause problems. It's even possible that the Vortex circuitry in a bit 
different
in the power circuitry, the Jamman/Alex/Reflex are all basically the same 
circuitry overall,
but the Vortex is different.

Personally, though, I wouldn't risk it.

andy butler

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