[R-390] Teledyne Imperial Amelco website history update

[Larry H]

Hi All,  I've just made an update to our r-390a.net website history
information about Teledyne, Imperial and Amelco.  Most of it is in
the Teledyne Imperial Amelco section of our history page.  Here's a link to
it: R390A Hist Teledyne Imperial Amelco.pdf (r-390a.net)
<https://www.r-390a.net/R390A%20Hist%20Teledyne%20Imperial%20Amelco.pdf>
There's some very interesting, informative and entertaining reading there.

And, I updated the section on the Manufacturers page with some information
about Amelco, which was blank before.  Here's a link to it: The R-390A
Frequently Asked Questions Page <https://www.r-390a.net/faq-manuf.htm>

Enjoy.

Regards, Larry