I built my first HW-101 in 1982-3 when I was KA3KOE. I rescued several SB-220, SB-200, SB-230 and HA-14's that I want to restore. One of these days I'll get to them. Yesterday I saw something shiny and cheap (PL400-Squirrel!!) and jumped on it. I'm heading to Lowes and get the parts for a Dim Bulb Tester. The 100 watt lightbulb might be a challenging find.