Keithley 260 Nanovolt Source

Keithley 260 Nanovolt Source.
Unit powers on and output
verified with DMM. 2 binding
post knob/screws missing
(sub image). Power cord has
been taped near unit strain
relief. We have a large inventory
of specialty test equipment from
all major manufacturers past
and present. Discontinued,
obsolete, vintage, hard to find?
We probably have it. Always
check us first.