[Boatanchors] Manual for SPA-3 Panoramic Spectrum Analyzer by Singer Metrics /Radio Products, Inc

[W8KZW]

I just acquired one of these old timers but no manual.  Anyone have a PDF or
copy?

Has anyone ever used one?  Any tips (besides, perhaps, 'haul it to the
curb"!)?

I've not used a spectrum analyzer before, and I probably don't need it, but
.....

About all I could find on it is an old posting of one for sale with photos:
http://www.recycledgoods.com/products/Panoramic-SPA-3-25-Spectrum-Analyzer-w
-Power-supply-Unit-Model-PS-19.html.  I have no financial interest in the
listing.

Thanks, & 73,
Jeff
W8KZW