New compressor for vintage fridge? Embraco engineering sample...

[turbokinetic]

A few years back, I got an "engineering sample" new Embraco compressor from eBay. It has a large glass window in the side of it, with the oil level marked. Ran across it recently and decided to make a project with it. No specifications known so I had to guess and still may not have the capillary tube exactly right, but it is interesting nonetheless! The evaporator is from a 1940's Frigidaire.

There are two videos. Hope they are entertaining for y'all!
Sincerely,
David

 

[turbokinetic]

It is still working, as well!

 

[rp2813]

David, you cracked the code!  Nicely done and very interesting to watch.

 

[statomatic]

So cool !
I'd like to see a fully transparent compressor, or even nicer, transparent evaporator or condenser so you can see the refrigerant changing state.