[time-nuts] Manual: VARIAN R-20 Rubidium frequency, standard.

[Chris Quayle]

Hi,

I scanned and uoploaded the R20 and 304D manuals to ko4bb a couple of
years ago. Have a 304D which sort of works, but the meter was open
circuit and had to replace with a similar sized edgwise meter, and
an op amp to correct the range. Still have the original manual somewher, 
but the scans should be pretty good.

It does lock and the peaks look ok, but drops out of lock every so
often. Very well built piece of kit, with plugin enclosed modules.
All look ok, but may have to open the physics block as some stage to
find out what the issue is. Everything else looks ok, but istr the
psu needed some work as well.

Having stripped out and repaired an double oven HP standard in the
past, refoaming might not be too bad if it needs it...

Chris