Hello Helmut.. I had to watch the video to see what " blue box " you are referring to.. I think you were looking at the top covers of the two water tanks that hold the distilled water for the two amplifier systems.. They are sitting inside that separate gray small cabinet that all the water tubing goes to.. They are just water reservoirs that have the small fish tank pumps in them also.. The water after going through the amifiers then returns through two small radiators with fans and then returns back into these water tanks.. There are earlier videos on my channel showing in more detail this part of the system.. The 23cm amplifier project shows more if I recall.. Thanks, Skip
Another great video Skip 👍 well done. See you off the Moon GL 73s de Jac PA3DZL
Good Video Skip, just the right length. Dave VE7HR
😀I learned a lot of stuff abt. watercooling. The blue box, what´s that ? is it a heat exchanger/compressor ??
Hello Helmut.. I had to watch the video to see what " blue box " you are referring to.. I think you were looking at the top covers of the two water tanks that hold the distilled water for the two amplifier systems.. They are sitting inside that separate gray small cabinet that all the water tubing goes to.. They are just water reservoirs that have the small fish tank pumps in them also.. The water after going through the amifiers then returns through two small radiators with fans and then returns back into these water tanks.. There are earlier videos on my channel showing in more detail this part of the system.. The 23cm amplifier project shows more if I recall.. Thanks, Skip
I guess you don't need a snorkel this time.... hihi