We are using a 12.000MHz crystal in a timer circuit. It has 2 x 33pF load capacitors and the xtal is under the IC socket so the tracks to the uC are 0.15" only. We want to measure the osc frequency to within 1Hz so we can adjust the load cap in one leg. Can someone tell us what test gear we need to be able to do this? regards, Peter Crowcroft DIY Electronics (HK) Ltd PO Box 88458, Sham Shui Po, Hong Kong Factory: voice 852-2304 2250 Fax: 852-2729 1400 M/F, 97 Fuk Wa Street, Sham Shui Po Home: voice 852-2720 0255 Mobile: 6273 2049 Web: http://www.kitsrus.com Email: peter@kitsrus.com Yahoo Messenger 'peter5999' with webcam Pay with Paypal: peter@kitsrus.com ------------------------------------------------------------- -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.