Highly versatile audio clock generator with 7 commonly used frequencies available on a single board. Very low jitter (less than 10 ps rms) due to ECL core, differential output. Frequencies selectable via on-board dip-switch : 8.4672, 16.9344, 33.8688, 67.7376, 11.2896, 22.5792, 45.1584(all MHz). Price is 79 euro - shipping included worldwide. Details and orders : www.rockna-line.com/diy.htm & www.rockna-line.com/diy/uclock/clock.htm