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For a long time I had in my drawer some rare 9.5mm films dated 1927 that I couldn't view due to the lack of a suitable projector. The delicacy and rarity of the films deserved the use of a projector that guaranteed their safety.
Unfortunately, the most modern and professional 9.5mm projectors are extremely rare and expensive to obtain and the alternative choice of machines that are at least 60-70 years old is almost obligatory.
I recently bought a small projector from the 1950s, it is a French Royal Ciné Gel 210 with 110V power supply, AC motor with variable speed by rheostat and incandescent lamp with optical condenser.
Given the precarious conditions of the original electrical system, I immediately rejected the hypothesis of a restoration to the original conditions, which involved, among other things, the adoption of an external transformer.
On the contrary, the simple but functional mechanics, with a double claw and two sprockets, one at the entrance and the other at the exit of the film gate, immediately seemed to me a good starting point for further elaboration.
I therefore decided to attempt a transformation of the projector into a 12V DC machine with LED lamp, maintaining the variable speed capability, without however changing any of the original external elements of the projector.
In short, the changes were the adoption of a DC motor powered by a PWM type electronic circuit, to vary its speed, a 10-15W 12V glob led lamp and an external 12V 30A switching power supply.
The final result really exceeded my expectations.
Now I can adjust the speed all the way till to freeze frame without even worrying about burning the film.
It is certainly not a projector for large screens, but it allows a good safe viewing of my rare 9,5mm films.
Unfortunately, the most modern and professional 9.5mm projectors are extremely rare and expensive to obtain and the alternative choice of machines that are at least 60-70 years old is almost obligatory.
I recently bought a small projector from the 1950s, it is a French Royal Ciné Gel 210 with 110V power supply, AC motor with variable speed by rheostat and incandescent lamp with optical condenser.
Given the precarious conditions of the original electrical system, I immediately rejected the hypothesis of a restoration to the original conditions, which involved, among other things, the adoption of an external transformer.
On the contrary, the simple but functional mechanics, with a double claw and two sprockets, one at the entrance and the other at the exit of the film gate, immediately seemed to me a good starting point for further elaboration.
I therefore decided to attempt a transformation of the projector into a 12V DC machine with LED lamp, maintaining the variable speed capability, without however changing any of the original external elements of the projector.
In short, the changes were the adoption of a DC motor powered by a PWM type electronic circuit, to vary its speed, a 10-15W 12V glob led lamp and an external 12V 30A switching power supply.
The final result really exceeded my expectations.
Now I can adjust the speed all the way till to freeze frame without even worrying about burning the film.
It is certainly not a projector for large screens, but it allows a good safe viewing of my rare 9,5mm films.
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