(15.5 hours) This entry covers the last few days of research and electrical work. I have mostly finalized the panel design; purchased switches, knobs, and lamps; defined switch labeling and functions; designed sub-circuits (such as the reed switch-controlled one that will monitor the pitot heat circuit and turn off the annunciator light if the heater fails.) Due to the taller EFIS displays I'll be installing, I will not be able to use the scratchbuilt annunciator panel I built previously. Instead, I'll use a cluster of nine 12x16mm rectangular LED lamps with integral legends. They should look very nice.
I also ordered the ProHub data bus from Approach Systems, Inc. to connect my avionics. This will save a ton of time when I wire the panel, plus it will allow for future upgrades and panel modifications. [Eventually superseded.]