Post by thread:[BUY]: Wanted, Z80 single board computer

Does anyone have an old Z80 single board computer that they want to sell for cheap? The smaller the better and it really needs to be single +5v supply @ less than 5A. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

Yes hon I have one, where are you ? not sure on the specs, or what chips are missing (like the ram / EPROM / pio) but the board worked last time I played with it :o) Regards, Kat ____________________________________________________________________________ /"\ ASCII Ribbon Campaign | K.A.Q. Electronics \ / - NO HTML/RTF in e-mail | Software and Electronic Engineering X - NO Word docs in e-mail | Perth Western Australia / \ | Ph +61 419 923 731 ____________________________________________________________________________ {Original Message removed}

Hi Kat, >Yes hon I have one, where are you ? How cool!!!! I'm over in Innaloo, however Kensington isn't far from here so I could pick it up. :o) >not sure on the specs, or what chips are missing (like the ram / EPROM / >pio) but the board worked last time I played with it :o) How big is the beastie because I want to mount it on my chair, so physical size is an issue! And finally, the 64 dollar question, how much do you want for it? Regards Jean-Michel. >Regards, > >Kat >____________________________________________________________________________ > /"\ ASCII Ribbon Campaign | K.A.Q. Electronics > \ / - NO HTML/RTF in e-mail | Software and Electronic Engineering > X - NO Word docs in e-mail | Perth Western Australia > / \ | Ph +61 419 923 731 >____________________________________________________________________________ > > >{Original Message removed}

I am reminded of an old Idea For Design or something like that it one of the magazines. It was "How to use a Z80 to compute square roots." The circuit consisted of an op-amp with a Z-80 in the feedback loop. It used the Z80 as a diode to get a logrythmic I/V curve to compute the square roots! Harold FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: dl.http://www.juno.com/get/web/. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam@spam@mitvma.mit.edu with SET PICList DIGEST in the body

> Does anyone have an old Z80 single board computer that they want to sell > for cheap? I have an ZX81 with a defect in the video that would love to get a better home. But I guess the postage would be more than it is worth... Wouter -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

>> Does anyone have an old Z80 single board computer that they want to sell >> for cheap? > >I have an ZX81 with a defect in the video that would love to get a better >home. But I guess the postage would be more than it is worth... >Wouter Yes I think you're right but thanks for the offer. :o) Regards Jean-Michel. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body

Ooh! Me! Me! I loved the zx81. What kind of defect is it? I still have a lot of tapes, but no '81. -Adam wouter van ooijen & floortje hanneman wrote: {Quote hidden}>>Does anyone have an old Z80 single board computer that they want to sell >>for cheap? >> > >I have an ZX81 with a defect in the video that would love to get a better >home. But I guess the postage would be more than it is worth... >Wouter > >-- >http://www.piclist.com#nomail Going offline? Don't AutoReply us! >email EraseMElistservspam_OUTTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body > > > > >. > -- http://www.piclist.com hint: To leave the PICList piclist-unsubscribe-requestspam_OUTmitvma.mit.edu

> Ooh! Me! Me! > > I loved the zx81. What kind of defect is it? I still have a lot of > tapes, but no '81. It is actually a timex/sinclair 1000, but that is practically the same as the original ZX81. I loved it too. I modified it to output video instead of UHF TV signal. Worked fine some time, but at one time it simply did not work anymore. I guess the video output pin of the big ASIC has lost its white smoke. It weights 350 (PCB + kbd, no 16k RAM or wall-wart). I must have an azmic EPROM (assembler 'IDE') somewhere. I guess an emulator on a PC is an easier way for you to play with your old tapes... Wouter van Ooijen Van Ooijen Technische Informatica: http://www.voti.nl Jal compiler for PIC uC's: http://www.voti.nl/jal -- http://www.piclist.com hint: To leave the PICList @spam@piclist-unsubscribe-requestKILLspammitvma.mit.edu

The coolest thing (well, one of the coolest things) about the zx81 was that it only had 4 chips in it, and they controlled everything including video, tape, keyboard, and external i/o! Um, at least I think it was the zx81... Josh "M. Adam Davis" wrote: {Quote hidden}> > Ooh! Me! Me! > > I loved the zx81. What kind of defect is it? I still have a lot of > tapes, but no '81. > > -Adam > > wouter van ooijen & floortje hanneman wrote: > > >>Does anyone have an old Z80 single board computer that they want to sell > >>for cheap? > >> > > > >I have an ZX81 with a defect in the video that would love to get a better > >home. But I guess the postage would be more than it is worth... > >Wouter > > > >-- > >http://www.piclist.com#nomail Going offline? Don't AutoReply us! > >email KILLspamlistservKILLspammitvma.mit.edu with SET PICList DIGEST in the body > > > > > > > > > >. > > > > -- > http://www.piclist.com hint: To leave the PICList > RemoveMEpiclist-unsubscribe-requestTakeThisOuTmitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList spamBeGonepiclist-unsubscribe-requestspamBeGonemitvma.mit.edu

Hi, "The coolest thing (well, one of the coolest things) about the zx81 was that it only had 4 chips in it, and they controlled everything including video, tape, keyboard, and external i/o! Um, at least I think it was the zx81..." Wasn't it the ZX81 that prompted Bill Gate$ to question whether anyone would really need more than 1K of RAM? ;-) I was more of a Spectrum man, myself. So much so, in fact, that my ZX Spectrum-powered embedded web server will be online later this year. Useless? You bet. Regards, Dan -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads