| Jeffhs |
07-29-2011 01:17 PM |
Quote:
Originally Posted by Eric H
(Post 3009643)
So much cabinet, so little screen! :D
|
Yes, a lot like the last console TVs from Zenith, et al. in the 1990s. One small PC board in those sets in a huge cabinet, with plenty of room to spare. The TV we are discussing in this thread, however, has perhaps a 10-inch CRT in a cabinet that could hold a 16-19-inch one. Maybe this set was designed with expansion in mind. In the 1950s-'60s, some people were having their small-screen sets converted to use a 19" or even a 21- or 25-inch CRT, with varying degrees of success, as I am about to explain. I once had a TV service book, "Jack Darr's Service Clinic", a compilation of articles from a section of the same name in the old Popular Electronics magazine in the 1950s-'60s or so (IIRC--I could be wrong about the magazine in which this appeared), in which there was an entire chapter devoted to large-screen conversions of small-screen TVs. Many of these were deemed impractical because major modifications, such as replacement of the vertical output transformer, etc. would have to be made to the set so it would operate properly with the larger tube. Some of these modifications were outright nixed when someone would ask how to convert, for example, a ten-inch set to a 23-inch CRT, again because of the problems involved in the conversion. Again, major changes to the power supply, HV system, vertical sweep, etc. would be needed, all of which could exceed the cost of a brand-new large-screen set. Darr often advised these people to forget the conversion and just get a new TV with a larger CRT. |
