Dave uses his CSIRO National Measurement Institute rubidium frequency standard to calibrate and adjust his Agilent 53131A frequency counter.
With bonus teardowns.
53131A schematics are HERE
Forum Topic HERE
This sub US$500 Eakins microscope from Aliexpress seems identical to the new AU$1800 Suba Engineering ...
The EEVblog Store generally ships twice a week, on Tuesdays & Fridays, Sydney time. Dismiss