ALTMANN'S HELMET

 

Here is the scout helmet from the Behind the Magic CD.

 

My helmet is a heavily modified Altmann's scout trooper helmet.

 

The first thing I did was to put in a hardhat liner.  I used a MSA Fas-Trac Replacement Suspension (ml-473332).  I cut the webbing out and fastened it with industrial strength adhesive Velcro.

 

Next I used my Dremel to cut open the ear vents for circulation and for the public address system.  I installed black metal screen behind the vents with a hot glue gun.  You can see the PA speaker behind the screen.

 

The PA system is made from a Radio Shack amp #277-1008, Radio Shack microphone #33-1067, and two Radio Shack 8ohm PC mini-speakers. 

 

 

The speakers are placed behind the ear vents as seen above.  The disassembled amp and microphone are placed in the face of the mask and hot glued in place.

 

The large amp speaker has been removed and the mini-speakers have been wired in serial.  The wiring is positive (red) from the amp board to positive (red) on the 1st speaker, negative (black) from 1st speaker to positive (red) on 2nd speaker, negative (black) on 2nd speaker to negative (black) on amp board.  I only get feedback when the amp is turned all the way up.  All the wiring was covered with Split-Loom Tubing #278-1624A and hot glued in place.

 

Amp board and microphone

 

First speaker and fan

 

Second speaker and fan

 

As seen above, I installed two Radio Shack 12v CPU fans #273-240 inside my helmet for cooling.  Each one is connected to a 9v battery and they each have a Radio Shack Push On/Push Off Soft-Feel Switch #275-1565 to turn them on and off.  Each switch and its connections are placed inside a Snap-On Ferrite Data-Line Filter #273-105 with the magnets removed. 

  

The switches are attached to the helmet with strips of adhesive Velcro.  The fans have foam feet attached with epoxy to each corner.  These feet were then attached with epoxy to the helmet.  They act as standouts to keep the fan away from the surface of the helmet to aid with airflow.  All the batteries in the helmet are held in with adhesive Velcro.

 

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