I hi Guys I need to replace my o-rings on my hw-101 looks like 2.5 in wide be 9/64 in dia for the big one and 2.125 in by 9/64 in for the other 2 rings. is that sound about right ? thanks -- KC7HKP George Yazzolino 14801 NE 20th Circle Vancouver, Wa. 98684 Grid CN-85 kc7hkp at arrl.net