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OdBm Input on 16mm Sound Projector


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#1 Captain Keystone

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Posted 10 December 2006 - 01:32 PM

I have a singer graflex 16mm projector with a mic input and OdBm input. What do i use with the OdBm? what is it used for?
thanks, brandon
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#2 grantsmith

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Posted 10 December 2006 - 02:18 PM

i would have thought that it might be a zero decibels (0db) input.
Perhaps some kind of line input for connecting a tape player or something similar?
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#3 Clive Tobin

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Posted 10 December 2006 - 07:41 PM

I have a singer graflex 16mm projector with a mic input and OdBm input. ...

This is probably an output and not an input? This was provided on special order for feeding the film audio into the house PA system in a school auditorium say, through a long twisted pair cable.
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