Bill Kos's Blue ELF

kos front

Bill Kos assembled the cool blue ELF in these three pictures based on the original Popular Electronics article. The case and panel are oak, and a switch has been added to turn off the display. Bill says he plans on adding battery backup, and points out that the display consumes 90% of the power. He also added a RJ-45 jack for future interfacing to EF lines and Q.

kos back
kos wiring

© Dave Ruske 2001-2022, except where noted