wrote:

It is modified, probably to use on a ham band. But I would
like to know what it was originally. It looks like it has three
stages of frequency multiplication... so maybe it was VHF or something?

A lot of ham rigs had three doubler stages, which could be bypassed if
desired. This meant you could use a single set of crystals on 160, 80, and
40M. Slick, huh?
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."