[morzh]

There are very few points that would test close on these.
It really depends on the equivalent resistance of the point tested.

One is the rectifier output. A resistance of this tube is in hundreds of Ohms and so the reading is not affected noticeably by the type of the meter used, DMM, VTVM or the old style multimeter.
Also the filament voltages, that are supplied by the transformer directly and range from a 150m to 5A or more in very old radios.

However, once you measure any circuit around the other tubes, this is very different. A plate load is often in single milliamps or even a fraction of such, and the plate load resistance can be 100K (say, a 50K-47nF-50K filter and load create a DC load of 100K) and connecting a 250K-500K to it will affect the load and thus the reading.

The DMM will show the true value, but if you want to go by old schematic-shown values, you also need to use the old multimeter.

This said, once you have experience with these, you can simply judge whether what you see on a DMM looks good or not.