Aluminum Inner Preamp Box ----------------------------- Original Rev. 26-JAN-2008 Current Rev. 28-JAN-2008 Please make the following parts so that I can assembly one copy of the Aluminum Inner Preamp Box: Quantity Item - Drawing -------- -------------------------- 8 16.8" Aluminum Corner Bracket 4 20.8" Aluminum Corner Bracket 2 17" x 18" Aluminum Plate 2 22" x 18" Aluminum Plate 2 22" x 17" Aluminum Plate This box is assembled using 116 10-24 5/8" button head stainless steel cap screws with stainless steel external tooth lock washers. Please feel free to suggest any design changes that would make these parts easier for you to machine. As designed all of these parts are "symmetric", i.e. one can not make a mirror image of a part. As designed, all of the holes along a given surface of a bracket or along a given edge of a plate have a constant pitch. Please do not worry if an extra hole or two gets poked in some part. After the basic box is made I will be adding many holes to mount the internal components in this box and such. The purpose of this box it to provide mechanical support and protection for the electrical parts inside of it and to provide electrostatic shielding. To provide good electrostatic shielding this box is made out of Aluminum. After the basic box is finished and after I have drilled all of the additional holes in it this box will be painted white. Account Number: 61-5797 I have already ordered the material to make this box and I will bring it to the shop when it arrives. If additional material is needed please feel free to order it. These drawings are also on the web at: www.pa.msu.edu/~edmunds/LArTPC/T962/Preamp_Box/Inner_Box/ Thank you for making all of these parts.