Hi Elia.? Love the project!? Reminds me of being at university when we had to buy a specified multimeter kit (analogue).? We were provided (if my memory serves correctly) with the circuit, required ranges and the meter characteristics.? All the component values had to be calculated, then components of those values were provided and then we had to assemble the kit.? I remember my soldering was not to standard :(? Final test was to calibrate it.? I still have the pieces somewhere - the case was a very brittle plastic, maybe bakelite.? Even tightening up the case screws could crack it and the case certainly did not survive the accidental drop test, though it still worked electrically.
Incidentally I have a Fluke 77 issued to me when I started my job in 1986.? Various segments in the display became faint over time so a few years ago I took it apart and found that there is a sort of conductive rubber connecting the display to the PCB.? Carefully dismantling, cleaning everything up with IPA and reassembling restored most segments, second attempt fixed the lot - could be worth trying on your one if it has a similar issue.
73
Dave M0WID
