1985 Letterman appearance and Ed was still using an Echoplex in front

[harddriver]

The show was in LA and it looks like Ed took 12301 to Letterman, the two tolex tears line up. Some guy on YT put all the appearances in one clip.
Echoplex on the stool to the left of the halfstack footage at timestamp.

Here's the entire montage:

 

[Fiesta Red]

Anton Zip on drums

 

[Techdeth]

Fuck I miss him . Like him and dime I like really miss the FUN in their playing that most metal guys avoid .