One of my friends found these, any ideas?

Those are radio crystals from the old PIC controllers (pre V5/pre Cortex)…the ones where students would smack each other in the face with the radio antennas sticking out of their controllers!


The PIC controller era?
I remember we needed to plug in the correct frequency before every match.


Ya those are a blast from the past. Looks like the tournament kit where you got a lot of different crystals so you could have an entire competition event running without interference.


Correct me if I am wrong… PIC controllers were used from about 2005-2009. I think the cortex (with VEXnet) was released in 2010. But I wasn’t introduced to VEX until 2011, so…