This barrier key snaps onto the EDAC card edge connector that is used in TM500 series power supplies. It prevents incompatible plugins from being installed in the TM500 bays.

I designed these parts to closely match the Tektronix originals. They are 3d printed using high quality PETG filament.

This auction is for one set of ten (10) barrier keys only. The large green EDAC connector shown in the photos is not included.

Please check out my other auctions for more vintage test equipment items and accessories.