Rechargeable battery didn't arrive, but I found two 0.47F / 5.4V supercaps, that I installed instead. Handle rubber had a nice cooking in water with vinegar, the old cigarette smell is now gone
Meter is now warming up, then we can give it a first measuring and see where we are.
I started designing a new front panel for binding posts. Unfortunately LT binding post don't fit, so plan b is to use Pomona 3770 like Marco Reps instead. Hopefully I can finish that design this weekend. Other than Marco I want to keep the calibration lock at the front.
A lil bit of a longer lasting project is the design of a new reference board like MickleT. did, but also different: LTZ1000CH, TDP resistor network for temperature setting, ...
And I will start analysing the schematics to see, if we can get noise down with modern opamps.
-branadic-