This is a test of the new and improved "star" rubber parts. These are applied on the top half of the enclosure. Their function is to push down on the ring terminals ensuring good contact with the PCB. They are still a bit odd to fit, but they do the job as you can see in this video. When the DL2000 receives a "pulse" packet, the voltage rises, then a gate is opened for a fraction of a second to deliver the "bad boy" stimulus. On the scope you can see the voltage, not how much current is allowed to flow through...
As you can see two of their arms were cut off (ouch) - as they were interfering with PCB components... and same goes for the bosses underneath.
These parts aren't a work of art. We tried to make the little hole in the rubber smaller than their matching plastic bosses (cylindrical mini-thingies on the star bosses themselves) so that they wouldn't fall down. However it's hard to put them in and they get deformed slightly. Anyway! They stay put and they seem to work so...
