All sorts of metrics can be fun, like transformer watts per pound [1],
[1] Grab a couple of catalogs and do a scatter graph on that one.
Interesting, at least for people who find things interesting.
This isn't as goofy as it sounds - I've actually used this parameter,
albeit it was spec'd as "volt-amps".
Back in my HAM days (ca. half a century ago), this was mentioned in
more than one article on rewinding surplus transformers. Well, more
like the cross-section of the middle leg of the E, but it translates
quite well into VA/lb. (or lb/VA, depending on your POV.)
In fact, I once had a boss make a fool of himself over this - I was
tasked to spec a replacement transformer, because they'd changed the
requirements for one of the secondaries.
In this box, they had a selector switch to choose one of two secondaries,
but NEVER both (DPDT Switch); and I only had to change one, and the VA
didn't change much. The moron boss overrode me and spec'd it as if BOTH
secondaries would be running at once, which they were guaranteed (in this
box) to never do.
This was a retrofit, i.e., an ECO.
The new tranny came in and it didn't even fit in the original box! I
almost felt bad for the guy, he was so embarrassed, but I secretly gloated
inside because the guy was like The Fourth Stooge - worse than Dilbert's
PHB.
After I got myself fired and collected a few months' unemployment, I got
a new job, which was about the best job I'd ever had, and at the new
company, I ran into two - count'em - TWO former co-workers who had worked
under TFS. ;-)
Thanks!
Rich
