Vacuum tube exercise equip at the gym?


Anyone ever notice anything unusual about Cybex equipment at the gym. Specifically, the Hip Abductor and Hip Adductor machines. I belong to LA Fitness and it looks like these 2 machines have an input tube at the bottom of it next to the belt. There it is a dark glass input tube in some kind of tube socket, don't have any idea what this glass things does, but it looks exactly like a 12ax7 or something. Any ideas? Have you ever noticed this?

No other Cybex machines have this tube thing except for these 2 machines.
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Showing 1 response by tom6897

Do you experience lush highs but still suffer from a flabby base when working out? ;}