Hi gang, I just received a SB-610 monitor scope which is wired for the Heathkit 3000K-6000K IF using the two coil set of #40-602 and #40-748. What I need is to change this to an IF of 455K using a #40-746 coil. Does anyone have a #40-746 coil they would be willing to swap for the other two coils I have? This is a 2 for 1 deal! Tim wb1exg Cambridge, MA