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View Full Version : Is it normal to have liquid in the tube lens? barcoData 701 jbalestena 06-08-09, 10:30 PM I found 3 tubes in my dad’s garage, (RED, Blue, Green) They all seems to be from a barcodata 701 fts projector. They all have liquid inside the tube, top part. Is these normal?. I wish to sell them but I don’t know much about it. Thank you… Ile 06-09-09, 03:55 AM It's normal for projection tubes to have cooling fluid chamber in front of faceplate. In some Sony tubes there is used colored glycol as a color filtering in red and green tubes. jbalestena 06-09-09, 12:38 PM thank you, ANY IDEA about this?...I have 3 tube, the red has red liquid and green has green liquid but the blue has a clear liquid, no color like the others... Ile 06-09-09, 01:35 PM thank you, ANY IDEA about this?...I have 3 tube, the red has red liquid and green has green liquid but the blue has a clear liquid, no color like the others... Blue phosphorus have good shade off blue without color filtering. Same thing with all other projection tubes. lexx21 06-09-09, 04:59 PM This will give you an idea of why there is tinted glycol in the tubes. http://curtpalme.com/Tinting_Glycol1.shtm jbalestena 06-09-09, 09:16 PM Ile and lexx21, Thank you very much... lexx21 the link was GREAT HELP !!!! Thk you... Chris0311 06-10-09, 06:53 PM Its a coolant to keep them cool. It wears out eventually just as any other coolant would like in a car. |