Harley Cat, Before frosting glass

Harley Cat tries out the table. The glass top is present but the opaque coating has not yet been added. Below the glass top are the sixteen nodes of the circuit, each with the photodiode (in an LED-type T 1 3/4 package) sticking up close to the glass. The circuit nodes sit on top of the pegboard that holds the LEDs. In the far corner of the table is one of the two power supplies. Read more here