Q. What crystal does the Super Slim use?
A. The Super Slim uses a dual conversion crystal. The part number is 66772xx (xx= channel number). To tell if your crystal is dual conversion or not, examine the pull tab. If the tab has blue end and the letters 'RF' on it, then it is a genuine Hitec dual conversion crystal. Use only genuine Hitec crystals in the Super Slim or it will have decreased range.