On Apr 29, 1:52*pm, spamhog wrote:
QUESTIONS:

- I don't recall seeing examples of this, including components or
groups of components that are
. * * * * * multiple
. * * * * * functionally separate
. * * * * * RF-segregated
. * * * * * RF-hot at the same time
. * * * * * at successive stages on a signal path
. * * * * * on a single plug-in card.

Other than the HRO drawers, are there any?

I think Ten-Tec has a HF transceiver with plug-in modules, I don't
know exactly what's in each module.

The Norcal Sierra is a pretty spiffy implementation of I think exactly
what you are talking about. URL for a handbook article with really
nice pictures:

http://www.arrl.org/tis/info/pdf/96hb1789.pdf

Tim.