I have an old Ameco PT-2 preamp I'm thinking of using on the lowabands. I'm curious if anyone has used this particular model in the 1.8 Mhz to 3.5 Mhz range and if it's any good. Second, the manual mentions the ability to add a second receiver. However, a modification sheet is needed from Ameco. Has anyone attempted this modification or do you have the modification sheet? 73 Ken K4ZW