This is the latest version of Light Logic or at least the Led/CdS pair. I have worked out a method of encapsulation using hot melt glue and black finger nail color that makes the placement of this component better suited to PCB and breadboard use.

The transistor used as a size reference is a 2N2222 TO-92 package and shows that my Phosistor ( Not sure of the exact name of it yet, any ideas? ) is now getting close to that level.

Also thank you Hackaday for the recent BLOG for Light Logic

https://hackaday.com/2019/10/24/light-emitting-logic-gates-built-from-scratch/