FWIW, I did a CTC-31 fly into a CTC-20 roundie (bad fly) and aside from ringinging out out a couple of the terminals, it was nearly a 1-for-1 swap! I also found width a little on the low side but the raster does fill the mask (just barely). You have to be looking hard to notice it (usually when the a/c compressor kicks in). Thats pretty neat about the Maggie mod, reminds me of some of those early Radio-Television mag. articles about "upgrading" your "oldfasioned" round screen b&w set to one of the "modern" rectangular crt's just introduced to the public. Some xfmr suppliers even marketed complete kits along with mask and safety glass and templates! must have been a good idea at the time, especially compared to the cost of a new set when you already had a decent operating one, albeit one with a small round screen
Oh well, we all know about hindsight and that 20-20 thing
