Twins... on the outside.

and on the inside... TOTALLY different! These are from Bob Arenella (thanks Bob!) and are from 1991 (different months). One is a relay type PC and the other is a SUPER simple thermal one it seems. you can see the label afixed to the outside. These didn't yellow or show signs of aging since they used a dfferent kind of plastic that's more flexible. I guess around 1990 Ripley switched from their low quality hard brittle plastic to a more robust flexible plastic that didn't age as badly. the gaskets were ripped off on these two.