Hi, Can someone tell me how to put a switch in a chess computer so as to switch back and forth with the original MHz and TUNED MHz? I found the Following on a listing in Ebay. http://www.ebay.com/itm/Saitek-Cosmo...-/190869559851**************** In regard to a cosmos "A working portable chess computer , chess piece set and instruction manual. This has been tuned to 24 MHz. I installed a switch at the low left corner. leftside The position of switch is set on original 10MHz. The right position of switch is set on 24Mhz. " **************************I want to do this with a couple of my extra models including the Excalibur-GM. Thanks and I would be VERY grateful for specific instruction. Queegmeister