Tim Wescott wrote:
On Tue, 22 Dec 2009 13:33:50 +0100, jfjp kruijs voorberge wrote:

hello
Can I use a universal power transformer out of a hallicrafters S-40 AU
into an SX -100 ? The power consumption of the S-40 is less than that of
the SX-100 so I am afraid that is getting to hot or could it deliver the
extra watts ?
Thanks in advance
hans

It will get hotter than it gets now. Assuming the output voltages are
the same as the one you're replacing, it'll get hotter as the square of
the current rise.

You say it's a "universal power transformer" -- does that mean that it's
not what originally came in the S-40? If it isn't original, is it
specified heavy enough to go into the SX-100?

If you're inspiration limited rather than money limited, Antique
Electronics Supply has power transformers -- they ought to have something
that'll work, and may even have something that'll fit. http://
www.tubesandmore.com.

Check these guys out: http://www.oldradioparts.com/
They have lots of new, used, and surplus power transformers for radios
at good prices. Note that they don't update the web page inventory too
often so email them to ask if the unit you want is still in stock and
give several alternates. They give quick service, I've bought stuff
there before.