Do the fans on your mfj supplies run all the time as mine does?  I leave 
my equipment on 24 7 and I hate a fan that runs all the time.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Wed, 20 
Mar 2013, Mike Duke, K5XU wrote:

> Just for comparison, before you drop money, take a look at the MFJ
> 4125, 4225, or 4245 supplies.
>
> Having just bought a 4125 about 3 weeks ago, I can tell you that this
> 25 amp supply is $84.95, and perhaps a little less in some places.
>
> It is quiet in the spectrum, but the fan does make more noise than the
> one in my 4245, which is a 45 amp model.
>
> The 4125 is a basic model that has no meters. Because of that, it is
> about half the height of the 4225, which is the 25 amp metered model.
>
> The one I bought uses the 5 way binding posts, but an Anderson Power
> Pole model is also available for about $10 more.
>
> The 4225 and 4245 both have front panel meters, plus a cigarette
> lighter socket in addition to the other connectors. They are 25 and 45
> amps respectively.
>
> All of them also have spring loaded speaker type connectors for low
> current applications. These connectors are rated at a maximum of 5
> amps.
>
> There is also a 15 amp MFJ model for about $60.
>
> As someone said, that 15 amp model will run the TMV71 just fine at
> full power, but it won't leave you any wiggle room.
>
> A 25 amp supply should run a 100 watt HF rig full tilt on anything
> other than a continuous duty mode like FM or RTTY.
>
> A 45 amp model will very likely handle anything most of us would ever
> throw at it other than a solid state amplifier.
>
>
>
>
> Mike Duke, K5XU
> American Council of Blind Radio Amateurs
>
>