Early Color Television
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CBS Model 205C2 with "360" sound system, which was used in this set (and in top of the line B&W and hi-fi consoles of the time) It has a twin speaker 360 degree sound pattern. Made in 1954, and used the CBS 19VP22 picture tube. Our set has a pecan finish. It was also made in mahogany and blonde. The set was made in the C1 model, without doors, and the C2 model, with doors.
Based on the serial numbers of surviving sets, we estimate that around 2000 were made. Many of the surviving sets have 21 inch CRTs. We understand that there was a factory kit for converting the set, but at least one of the 21 inch conversions involved a home made cutout of the mask to fit the larger tube.
(Courtesy of Steve Dichter and Ed Ellers)
The main chassis
Power supply chassis
Bob Dobush found this box at an auction in north Ohio and donated it to the museum. The conversion kit was to replace the original 19VP22 with a 21 inch CRT. Here are instruction for doing the conversion.
Inside were a removable CRT neck protector, with a note explaining that it allowed adjusting the CRT without removing the back. Also inside were 3 plastic insulating rings removed from the original 19VP22 tubes, and three inserts for yokes.
We don't know what new parts the box contained. It is too small to have contained a new mask or funnel-shaped CRT shield. We suspect that the modification of the 205 used the original mask and shield, since a 21 inch tube will fit in the cabinet with those parts.
Steve Dichter suggested that there might have been a second box with the funnel-shaped insulator that the 21AXP22 used, and possibly a new mask, though whether the modification included a new mask is questionable. A visitor to the museum who worked on 205s in the 50s recalls that the original mask was retained in the conversion - the customer had bought a 19 inch set, so installing a 21 inch tube with a 19 inch viewing area would have been sufficient.
Of the 3 surviving 205s that have 21 inch tubes, one has the tube installed with the original mask and one has the original mask hand cut to make a larger opening. We don't have information on the third set.
James Cozart wrote: