I am doing the key click mods for the Mark-V. I have easily removed the PA and heat sink, but I can't figure out how to remove the fan unit. Any hints? Tnx, Mike, W4UM (ex-K4KUZ) w4um at arrl.net South Florida DX Association http://www.qsl.net/k4fk/ Florida Contest Group http://www.floridacontestgroup.org