[Test-Equipment] Question about VTVM calibration

[Dale H. Cook]

On 2/5/2020 10:17 PM, Brian Harris wrote:

The HP 400D/H/L VTVMs were calibrated by factory and field techs with 
HP's own VTVM calibration system:

https://plymouthcolony.net/starcity/radios/pages/hp-cal.html

I sold the last of my 4xx-series VTVMs a year ago, and my cal system is 
going to the Museum of Radio and Technology in Huntington WV on a future 
trip.
-- 
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/