RE: Futaba crystal in a Hitec receiver
The second IF on both radios is 455KHZ but I dont't know about the first IF freq. They use commerical IF transformers and filters and what is available is 10.7MHZ and 10.9MHZ> That would be where the difference could be. You should see another crystal that would be 455MHZ above or below the other freqs. All dual conversions receivers have at least two crystals and some have two crystal filers in them. That's what you are looking at that says w55h. It's a 455Mhz filter.