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Mounting a letter film on the lamp panel
As you can see here, the film is embedded in a pair of transparent panels. For this you may use two thin pieces of plexiglass or plastic. Place the lamp film between the two transparent planes and mount the entire sandwich just above the LEDs, using spacers, bolts and nuts. You may use a transparent film (e.g. an overhead sheet) for this, or polyester paper. The latter has the advantage that it's slightly diffuse, which improves the readability.
lamp panel
Enigma-E kits from serial number 60 onwards are supplied with a suitable lamp film based on diffuse polyester paper. If you have a kit without this film, you may download a PDF file with a suitable design below and print the film yourself.

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Crypto Museum. Last changed: Saturday, 03 March 2012 - 10:21 CET.
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