Perhaps actually try using them in a small test-oscillator circuit? Cheers, -Neil. On Saturday 10 September 2005 09:53 am, Mark Chauvin scribbled: > I've got some that I suspect are not working. 20MHz > crystal oscillators. Besides actally trying to use > them, is there a way to test & see if they are working? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist