I'm new on this forum, but I'm happy owner HW ostc 2c from last 4 years.
I think is time to replace USB plug o-ring. I'm not sure about the dimensions.
I measured the size of the plug (o-ring channel) and it says that I should fit an oring with dimensions: 9,5x1,5 Is this correct? If not-can anyone give me the correct dimensions?
According to an answer on the same question in this forum from May 29, 2015 there are two possible o-ring dimension (inside diameter x cross section):
10 x 1.3 mm, NBR 70 shore (old version)
8.5 x 2 mm, NBR 70 shore (new version)