On 2011-11-13, at 7:17 PM, Spehro Pefhany wrote: > Perhaps bad (eg. cracked) ceramic filter caps.. Worth looking at, thanks. > Could they have changed to RoHS or changed component suppliers=20 > between batches? >=20 > I hope they purchased the components themselves and didn't leave that to > some dubious contract assembler. The client orders the parts and gets them shipped to the stuffers. As far a= s I can tell from the purchasing records, the components for the second and= third build batches were purchased at the same time but the actual build w= as split. I had the purchaser send me all the paperwork for the parts, invo= ices, shipping notes etc so I could double check for any anomalies - painfu= l. I suppose the stuffers could have 'borrowed' some parts. Veronica --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .