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Wow, thanks for reminding me of those folks! I remember seeing them in the Antique Electronics catalog, but just never really thought about using them. I could check a lot of voltages with the chassis in place that way! Zenith may have mounted some of their chassis vertically somewhere back toward the mid-fifties, but I know that they used variations of my Zenith's 18C24Q chassis till up around the mid-sixties and it is mounted horizontally. I have seen schematics of the variations of this chassis and they just changed a few of the tubes that they were using and eventually eliminated the vacuum tube low voltage rectifier in favor of the germanium diode.
There is no way to remove the chassis and CRT together at all. A shop would have had one of those small universal test CRTs and other extension cables to use in situations like this. It would not be too hard to just make a test jig just for this job which would entail setting the chassis up vertically and holding the CRT, chassis, and yoke firmly in place. It might be a good idea to find a plug and socket that will accommodate the leads to the yoke and make an extension there. If nothing else, it will be good to have a way to disconnect the yoke from on top. Many manufacturers did things like that in the early days because almost all repairmen were learning the television end of electronics at the same time, the manufacturers wanted armys of competent techs that could keep their product lines going. A television purchase was once a fairly big deal as far as investment, and it certainly was not tossed in a dumpster when it went on the "fritz." I think that American product manufacture and the product support of the old days was beautiful, and it's LACK is a big part of what is so very WRONG with the American business world and the business ethics of more recent decades and certainly today.
As far as remote chassis' go, normally if a set was manufactured with remote control capapbility, then it was reflected in a Sams or Riders folder somewhere. I have a schematic of mine. I am just curious as to the troubles they can cause as they are certainly interfaced with the main chassis. Perhaps someone here can point Marty in the right direction for a schematic on a PDF file for his 17Z23Q chassis.
Anyway, the series of chassis that I spoke of (18C24Q and similar) was supposedly pretty notorious for high use with little or no troubles. I know that I need to post a picture of the chassis to give this thread some zip.
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