On 12 October 2015 at 04:40, Denny Esterline wrote: > Ok, still feel like I'm missing something, but here's a couple options: > > http://www.ebay.com/itm/NEW-AD9851-DDS-Function-Signal-Generator-0-50MHz-= DDS-Source-SCM-DDS-Module-/311094363723?hash=3Ditem486eab464b > about $43 shipped > > What don't you get? Apart from the fact that I want 20MHz square waves not the 5MHz that the listed device is specified at. --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .