Alright! Thank you. I tried to buy one and the company said they didn't know what I was talking about. Or if you know the calculation, that would be awesome.
I have a used pager that is marked with a label inside the case as 154.175. The crystal is marked 17080.00. I just need to change it to 155.880 and if I can find a crystal on the correct freq, I can change it, without having to buy Minitor/Director specific crystals.
I looked around and found that Bomar is making crystals again. What type of crystal do I need to tell them to make? Is there a specific pF or PPM rating or do they know what I need if I just tell them 17.26944 MHz HC49 thru-hole crystal?