You can use the +12 line and -12 line and make a 24 V supply using a single SMPS. However, you should be careful about the current capacity of the -12 line - it is usually not more than few hundred MA.
AT type power supply is easy to modify - it has the 494 chip.
In any case, I strongly recommend NOT TO US PC SMPS for our radio. In spite of the large current rating, they are not built for sudden loads like when you press the PTT. In Chennai, we can buy a 20Amps fine SMPS for 1500 bucks.
73's and good luck.
Raj.
-----Original Message-----
From: HamBrewers@yahoogroups.com [mailto:HamBrewers@yahoogroups.com]On Behalf Of padmanabhan cattamanchi
Sent: Tuesday, June 07, 2011 11:40 AM
To: HamBrewers@yahoogroups.com
Subject: Re: [HamBrewers] PC SMPS
Sounds a bit complicated. Is it possible to make 24v supply using two of them in series, I was told it cannot be done because of the floating outputs. 73,sPaddyvu2pep
--- On Mon, 6/6/11, Hari <harigee@yahoo.com> wrote:
From: Hari <harigee@yahoo.com>
Subject: Re: [HamBrewers] PC SMPS
To: HamBrewers@yahoogroups.com
Date: Monday, June 6, 2011, 11:16 PM
73Hari
--- On Thu, 6/2/11, padmanabhan cattamanchi <PEPINDIA@yahoo.com> wrote:
From: padmanabhan cattamanchi <PEPINDIA@yahoo.com>
Subject: Re: [HamBrewers] PC SMPS
To: HamBrewers@yahoogroups.com
Date: Thursday, June 2, 2011, 1:15 PM
__._,_.___
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