Museum Hours:

Saturday 10-6

Sunday 12-5

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Picture Tubes

Color Picture Tubes

DuMont experimental color CRTs

* Indicates the tube is on display at the museum

1950-60

 

 

RCA 15GP22* (1954) Used in RCA CT-100 and other 15 inch color sets.

 

 

CBS 205 Colortron* (19VP22) (1954)

Here are advertisements and a comparison to the 15GP22

 

Westinghouse 22EP22. Used in Westinghouse H22T155.

 

 

CBS HD266* (1957). Early rectangular color tube Here are articles about the tube.
 

 RCA C73293C* (1951)

Three gun developmental CRT

 

  

RCA C73275* (1951)

One gun developmental CRT

 

21AXP22 (1955). First 21 inch production CRT. See an advertisement for the plastic shield used with this tube.

 

 

RCA C736785* (1957?)

 

 

21CYP22

 

Baird Telechrome

 

Unknown Date

RCA (?) Experimental Flat CRT *

 

 

Modern Tubes

 

  

W76 DOS 140* - World's shallowest color TV tube. This is the last prototype color tube made by Thomson (RCA) at their Lancaster, Pennsylvania plant. This tube has an impossible 140 degree deflection angle. In fact, engineers were never able to get it to converge properly.

 

(click on pictures for higher definition image)

Cutaway of a 110 degree color CRT*. These items were donated by Thomson.