I am looking for a supply of 307.2 kHz crystals to restore some TV Typewriters. I need 2 crystals and someone else needs one or two. I have not been able to locate any. I can get them made at International Crystal Manufacturing (ICM) for about $55 each with a 6 week lead time. http://www.icmfg.com/crystal_hc51u.html I would like to find some at a better price. I can make a small PCB with a 1.8432 MHz oscillator and a divide by 6 IC. This would cost about $75 total for 6 items, but I would like to find a crystal. I am adding the baud rate option to the CT-S serial interface, the default was a fixed 110 baud. http://www.swtpc.com/mholley/CT_1024/CT1024_Index.htm Michael Holley www.swtpc.com/mholley