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Old 29th Oct 2021, 9:07 am   #6
rontech
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Join Date: Jun 2017
Location: Southport, Merseyside, UK.
Posts: 646
Default Re: Projector valve amp trouble.

Quote:
Originally Posted by kalee20 View Post
I've also known a case where oil had got into the lens assembly following the exciter lamp, and after 10 minutes or so started to vapourise due to lamp heat. This defocussed the narrow slit of light on the film soundtrack, causing muffled, weak, sound.

So, be sure it really is the amplifier before diving in!
I was talking with a projector expert many years ago and he said he had numerous problems with B&H series 6## projectors because of over oiling.
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