Thanks for reading. I have a "new to me" IC-740. I need to replace the comp switch and when i called ICOM in Bellevue, WA, they said that i would need to get the part number for it as they had no documentation. If someone reading would have the part number for the compressor switch, i would sure appreciate it if they would send an e-mail to me. Thank - you again and best of 73 - Paul