[Boatanchors] Filament transformer needed

[D C *Mac* Macdonald]

Aren't the computer 5V power supplies voltage regulated?

I don't think you could run one of them on 60V to get 2.5V.

 

73 - Mac, K2GKK/5


> From: WA5CAB at cs.com
> Date: Sat, 6 Jun 2009 16:16:39 -0400
> To: boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Filament transformer needed
> 
> They won't be centertapped. I can't vouch for the typical current ratings 
> but if that is high enough and if you can find two identical units you could 
> series the primaries and series the secondaries and get 5 VCT from 120 
> input. For symetrical strays to ground characteristics, connect finish to 
> finish and finish to finish (primary and secondary) rather than finish to start 
> and finish to start.
> 
> In a message dated 6/6/2009 2:58:09 PM Central Daylight Time, msix at nmia.com 
> writes: 
> > While you're waiting might try an old PC power supply as
> > they do 5V at 18-20A without breathing hard...
> > 73 W7ZFB
> > 
> > On Sat, 6 Jun 2009, Glen Zook wrote:
> > >I am trying again to see if anyone has a filament transformer with 5.0 
> > volts center tapped and at least 15 amps capability. I have tried various 
> > surplus outlets (including the one in Marietta, Georgia) with no luck. Since 
> > I am on a fixed income I am trying to avoid the price of a brand new one.
> > 
> 
> Robert Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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