I am in need of some 1750khz intermediate transformers for an old tube project. I can find a few 455khz but not 1750khz. Removing turns from a 455khz IF transformer would raise the frequency but what would that do to the impedance? I thought I would be able to find quite a bit on the subject of rolling my own IF transformer either with a toroid or on a coil form but saw very little and find no 1750's listed for sale so I have to make my own. I saw one 3 year old thread that asked the question but the thread was locked and no answer had been offered. Can anyone help me? Thank you.