Sprague HV Capacitor 500pF 20kV Axial Leads

Description

Sprague High Voltage Capacitor
500pF 20kV
The auction is for one capacitor (multiple available)
These are very rare HV capacitors
Marked 712C*Z
They are ceramic construction
Similar to the common "doorknob" style, but with axial leads
I believe that these were left over stock from Tektronix
and have been in temperature controlled storage since new
The date code on all is 7331
The summer of 1973 was apparently a good era for capacitors!
They all test between 422pF and 436pF on a DMM (not lab accuracy)
but it demonstrates they all are within tolerance