Just got to point out...I started rewatching the series on DVD over the weekend & I noticed something you got better than the QMX. In the first few episodes that I've seen so far, when the Farnsworth rings, the red lamp blinks exactly like yours. Yet on the QMX replica( I know the current ones are "props"), the lamp blinks with each pulse of the ring. Kind of like "Ring, Ring, Pause, Ring, Ring, Pause". Now I've not had the fortune of seeing one of the QMXs in person, but this is just what I've seen on YouTube reviews.
I just got in on the new Jedibugs/RussRep run of the face plates, so I've been "studying" up on all things Farnsworth in preparation. I've not started collecting parts yet since I'm hoping as these new faceplates are delivered, I'll be able to get in on some group buys of the various knobs & switches, but I just had to say Thanks & let you know that your prop is exactly what I'm aspiring to.
Well done, Sir!