Mouser has lots of the 10mHz version in stock... 692-Z84C0010PEG for $4.14 each
On Sun, Jun 29, 2014 at 11:52 AM, David Fry <[email protected]> wrote: > Hi Ian, > > many thanks, I have now ordered some parts from ACP surplus via ebay cart > system. > Quest components looked like a good source until I got to checkout and > they wanted $50 to ship a few chips USPS to UK ( I dont think so....) > > regards > > David Fry > > On Sunday, June 29, 2014 4:09:19 PM UTC+1, Ian May wrote: > >> Hi David, >> eBay seller acpsurplus has Western Digital WD2793s and some SAB2793s >> which are a Siemens version according to the listing. He is a California >> based seller and every device I have purchased from him has been genuine >> old stock. I have no connections to acpsurplus, just a satisfied customer. >> Cheers, >> Ian. >> >> >> On Sun, Jun 29, 2014 at 2:46 PM, David Fry <[email protected]> wrote: >> >>> Hi all, >>> >>> does anyone know a reliable source for a WD2793 floppy controller ic, I >>> have been looking on ebay and am also concerned that many of the TMS2793 >>> look suspicious, too many suppliers with identically printed/date coded >>> chips. I can believe that there is a large stash of these parts in China. >>> the whole fake IC this is very frustrating, I buy from reputable >>> suppliers where possible but many of these chips are obsolete/not stocked. >>> >>> wrt 20mhz Z80 CPU , Mouser has 119 DIP's on order with an estimated >>> delivery of 3/10/2014 for those who can wait >>> >>> http://uk.mouser.com/Search/Refine.aspx?Keyword=z84c0020 >>> >>> regards >>> >>> David Fry >>> >>> On Sunday, June 29, 2014 3:44:02 AM UTC+1, curt mayer wrote: >>> >>>> I've got a 8088 cpu blank, and a z80 cpu populated. I bought a 10 >>>> chip lot of z84c0002pec's from ebay, and was a bit horrified when I got >>>> them to find >>>> that they smelled of new paint. identical fronts, but the backs showed >>>> different countries (indonesia and phillipines), all with different mold >>>> imprints. >>>> >>>> obviously shenanigans. >>>> >>>> so, I wired up a 20mhz test rig for the z80's, using a derivative of >>>> dunfield's no-ram monitor (i disassembled it and added a lot more code), >>>> and not a one tested >>>> out at 20 mhz. one limped at 16, 2 ran at 12, and the rest were good >>>> at 8. all tested as cmos: the out (C),F instruction sends FF, the nmos >>>> sends 00. >>>> >>>> for 15 bucks, I got a bunch of mildly useful z80s of unknown actual >>>> characteristics. >>>> >>>> anyhow, now i want to build the 8088 board with V20's - NEC has a part >>>> number for dip-40's at 16mhz. 70108hcz-16. lots of them available on ebay >>>> from china. >>>> >>>> any experiences here before I become the ebay counterfeit chip crash >>>> test dummy? >>>> >>>> --curt >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "N8VEM-S100" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- ~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~ Tom Lafleur (858) 759-9692 -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
