[Test-Equipment] Old HP RF analyzers - are they worth it?

[John Miles]

> I think there's a nuvistor in the 2 Ghz IF amp that can be a dog to
> get if it's in need of replacing. Used to have a spare set of
> handbooks round here but no idea where they are at the moment-filing
> system is in chaos as I add yet another cabinet and re-arrange all the
> 'overflow'.

It's actually not a Nuvistor, but a planar triode.  I seem to recall 6239
being the type number.  They're pricy -- I've seen them quoted at >
$200.00 -- but I can't imagine any reason why a $2.00 MMIC couldn't do the
job, perhaps with a homebrew 2 GHz bandpass filter.

-- john KE5FX