Here's a little Doraemon 1973 recreation animatic I made using the audio we have of Nendoron Riot, Episode 26A of the series.

I've mentioned before that Kenjiro Tsuda was the first male seiyuu to voice Doraemon since the 1973 series, when Kosei Tomita voiced him for its first 13 episodes. Here is some audio of Tomita's Doraemon, sourced from Episode 12B "The Competition Of Man's Power".