Teardown of a Beseler PM1A Color Analyzer

In this video, I did a teardown of a PM1A color analyzer ( www.kerrywong.c... ). This one is similar to the PM2L I analyzed a while back (www.kerrywong.c.... Each analyzer has a 931A photomultiplier inside for light detection, and you can do many experiments with it. For instance the direct measurement of the speed of light ( • Direct Measurement of ... )