Quote:
Originally Posted by andy
I would bet those rebuilt tubes that lacked their safety glass had a tension band installed.
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Not that I've seen, Wayne's CTC-5 has a Hawkeye tube in it and there's no band. I seriously doubt the safety glass had anything to do with stress on the tube itself, just look at the way they are attached: they laid the lens on the front of the tube, then injected PVA into it as a bonding agent. I have 2 FJP's with removed lenses in my sets, and they are doing just fine.