A few days ago at home to find a solar blast pipe maintenance to see that a bad seven I climb up to watch how did not have seven five ask what is the vacuum tube bad appearance a little crack traces could not be bad it is based on what is bad is a thick pipe fifty OK please tell me know what good will plus 100
Some vacuum tubes are not white. White reasons, some because of the film due to high temperature off, and some white due to leakage.The most simple judgment is based on the bottom of the vacuum tube to see the "silver mirror" layer is still there, in the case, is good, otherwise it is bad.
Vacuum tubes are generally composed of the inner tube and the outer tube, regardless of the tube inside the tube, who broke the vacuum tube is not shaped. Good vacuum tube, the inner surface of the tube, the "solar film" layer still exists, the pipe broken, split, fried is certainly not good
Some bad appearance of vacuum tube is cracked or broken in the solar water leak. Some vacuum tube bad water leakage is not out to see the vacuum tube pale from the outside. The market most vacuum tube diameter of 58 mm. 1.8 meters long 50 yuan can also be
