I knew a guy that used to throw a damp towel in the freezer and then wrap that around his tube, can't say I recommend it though!
I ended up doing the Peltier mod to my last one, like Paul did to his. Made cool down *way* faster.
I'm wondering whether to get a fan for the new 9.25HD scope, but it seems to cool way faster than the old one, so I haven't had much hassle so far.
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