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Topic: Simplex 35mm suitcase projector
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Mitchell Dvoskin
Phenomenal Film Handler
Posts: 1869
From: West Milford, NJ, USA
Registered: Jan 2001
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posted 10-20-2014 10:10 AM
> what is the usual first step in assessing the situation with regards to the functionality of a projector?
Depends upon what you want to do with it. If you plan to actually run movies, I would recommend abandoning the SP. For the cost/time/effort that would be involved in restoring it, you can buy a more modern projector is gentler on film and ready to go. Further, this version of the SP is set up for 1K reels, which will hold a maximum of 10 minutes of film. If your goal is a working antique, then go for it, but you have your work cut out for you.
If it were my project, I would start with the mechanical, spinning the motor by had to verify nothing is seized and verify that none of the oiling tubes are clogged. Then I would replace any cloth and/or asbestos insulated wire, or any cracked plastic/rubber insulated wire. Then, unless you have the original external amplifier, I would replace the sound photo tube with a solar cell so that you can connect it to a modern amplifier.
Functionally, this is not much different than a 16mm projector of this vintage. Essentially you powering the motor, the picture lamp, and the exciter lamp.
Sound is handled by an external pre-amp and amplifier. The projector needs to be oiled for every few hours of operation. There are oil filler tubes all over the projector, some in none obvious spots. Remember that like most 35mm projectors, it does not rewind so you will need rewinds and a splicer.
I really can't answer any more detailed questions, as other than briefly looking at my friends projector (in the link above), I have never worked on or run one of these.
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Leo Enticknap
Film God
Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 10-20-2014 12:05 PM
The "use with slow-burning film only" tag is interesting. It implies that this machine was in mainstream use pre-1950s. I wonder what its target customer base was? Presumably screening in temporary venues, but with a reel capacity of only 1K feet, I wouldn't have thought that this would have included showing feature films, which, by the mid-1930s, were normally distributed on 2K reels. Screening rushes on location, maybe? That would also be an application for which pre-triacetate safety stocks would have worked: only played once or twice, so durability not an issue, and relatively low quantities of stock footage, so more expensive stock not really an issue.
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