[time-nuts] another Ebay mixup, 5370

Dr Bruce Griffiths bruce.griffiths at xtra.co.nz
Sun Jun 10 17:53:14 EDT 2007

SAIDJACK at aol.com wrote
> There are so many trimmer caps inside that for sure I am not going to move  a 
> single one of 'em :)
> Then again I get <50ps jitter with 8.2 readings per second using the  
> external Ref input, so maybe I should be content with that. That's a lot better  than 
> my 53132A.
> Thanks again everyone for your useful hints!
> bye,
> Said

Most of these trimmer caps are on the 200MHz frequency multiplier board.
With a spectrum analyser, a suitable probe and a ceramic tuning wand, 
those trimmer caps on the frequency multiplier board should be very easy 
to adjust correctly by following the documented procedure in the manual.

There is also a single trimmer capacitor on each interpolator assembly.
Adjusting these along with the symmetry, anticoincidence, and quiescent 
balance pots on each interpolator assembly requires somewhat more 
equipment and expertise.


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