Poking around in an another old bench-multimeter.
I couldn't do any video annotation by referencing the schematic, because the service manual HP/Agilent has available for this meter had been xeroxed so many times before it was scanned that I couldn't read any of the part values, or even discern the parts in the schematic most of the time.
![](https://i.ytimg.com/vi/F0ll4_pEPnw/maxresdefault.jpg)