25-04-2015, 09:33 AM
I have got a couple of them too. They would have been used is sensors for the optical sound track on cinema projectors.
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Odd old valve that isn't I think?
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Odd old valve that isn't I think? - by boater sam - 24-04-2015, 06:51 PM
RE: Odd old valve that isn't I think? - by tiv48 - 24-04-2015, 07:02 PM
RE: Odd old valve that isn't I think? - by tiv48 - 24-04-2015, 07:05 PM
RE: Odd old valve that isn't I think? - by boater sam - 24-04-2015, 07:44 PM
RE: Odd old valve that isn't I think? - by pwdrive - 24-04-2015, 08:01 PM
RE: Odd old valve that isn't I think? - by Refugee - 25-04-2015, 09:33 AM
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