[BC] NAB North hall

[RichardBJohnson at comcast.net]

Jeff,
I went by your booth today (wednesday) several times, but I hadn't 
received  thie Email
yet because Comcast hoards Email and then puts it in user's boxes, perhaps, on
a weekly basis. Anyway, I worked for Paul both at Cetec/Sparta and later at
Elcom-Bauer. As you know, many a night he would get out of bed, go to the
plant, collect some emergency spare part, and drive it to the airport 
while most
of us were home sleeping. Perhaps a thousand broadcasters know him,
having been bailed out many times as the "radio man's" radio man.

I did look at your new toys. My only comment would have been "air."
The clean air needed to keep air-cooled equipment cool is always
dirty at transmitter sites! Everywhere there are fans!

One of Analogic's divisions makes a solid-state 25 kW amplifier
for MRI. It is used by many MRI manufacturers. Because it must
operate as a linear ampifier, It must dissipate about 8 kW of heat.

We use automobile radiator technology to keep our heat-sinks
at a reasonable temperature. This allows a large-area radiator
that requires very little air flow. The technology is mature and
there are many aluminum compatible fluids, many ethyele glycol
based.

I took 173 pictures at the show, most are usable and I will make
a click-to-view web-page when I get home. I'll put the link on
the radiolist. The pictures are of "gadgets," hardware that I thought
that a typical Chief Engineer for radio would be looking at. That's
so many who were not able to get to the show, can at least get
a peek.


--
Cheers,
Richard B. Johnson
Read about my book
http://www.LymanSchool.org


  -------------- Original message ----------------------
From: Jeff Welton <jeff_from_nautel at live.com>
 >
 > Hi Richard;
 >
 > That said, I'd be happy to have you drop by our booth again - 
there are at least
 > three of us in the booth who follow this list regularly and would 
recognize the
 > names of just about any of the normal cast of characters :)  The 
past two days
 > have been non-stop - it was only near closing yesterday where I 
saw any blue
 > shirts that weren't already talking to somebody, so it is possible you were
 > speaking with somebody more involved in the equipment part of our 
business than
 > the people part,