Electrodyne was a small electronics company about 3 blocks down Rt 1 in Alexandria, VA from our dealership back in the early 70's. They started with a small glass showcase about 6 feet long inside the front door with points, plugs and air filters in it. Chet Vincentz had a green '68 (I think) 912 that we would service regularly. Eventually they got out of the electronics business and moved to a much larger facility in another location in Alexandria and turned into a very large Porsche parts provider. The good old days. Thanks for posting and bringing back the memories!