[labnetwork] 3rd party repair/calibration of legacy metrology

[John Shott]

Gregg:

This may be a long shot, but Tektronix Service Solutions claims to 
calibrate this instrument and on a closely related page under "Support" 
also claim that the repair instruments from a a broad range of 
non-Tektronix manufacturers.

It may at least be worth contacting them to see ... Here is the link:

http://service-solutions.tektronix.com/PMS/HSLIS-M50-4-DI-PARTICLE-COUNT-CALIBRATION/product/ir/2100063127

I've never used Tektronix Service Solutions for either calibration or 
repair so have no first hand experience with them to share.

Good luck,

John