In a message dated 14/12/2011 19:58:15 GMT Standard Time, JLeikhim at Leikhim.com writes: So the OCXO and the 9 pin RS232 are not actually connected to the PC board? I am confused? -------------- Nope, just sitting on it for the sake of the photo, treat them as a freebie or as scrap, either or both is a reasonable assumption:-) Regards Nigel GM8PZR