[RecycledEle]

I was walking through the Smithsonian Air and Space museum, and asked about one piece of test equipment. Nobody knew what it was. I explained it was an RC comparator, and I still used one daily.

I left a National NC-105 tube radio at my last employer along with some telephone test equipment that predated the invention of the transistor.

The last electronics class I taught used some resistors from a Heath Kit package. They looked into repairing a Heath Kit Hero Jr robot.