Hi,
I actually prefer switching supplies to the old iron core power hogs.  They 
run cooler, are more efficient and make much less hum noise than the old 
astrons that I've owned over the years.  I currently own an Astron ss25 and 
an Iota 45 amp switching supply.  I also have several 3 amp samlex switching 
supplies that work GREAT, and I've sold all of my iron core boat anchors.

Bob Tinney, K8LR, [log in to unmask]
Skype, bobtinn
Life is full of challenges, that's what makes it interesting!