UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

SiriusHardware · 8th Mar 2020, 8:42 pm

I'm glad you are making progress.

If you want to try to 'keep it real' I have some New-Old-Stock believed working 2716s, in fact I think I programmed one with the M12 code a while ago intending to send it on to a fellow forum member but it wasn't required in the end.

I also still have my working Maplin SBC system so if there are any concepts, ideas or components you need trying out in a working system let me know.

I find it quite mysterious that your EPROM programmer reads the programmed devices back OK and yet the system itself can not - maybe the programmer reads devices at a more slow-but-sure speed.

8th Mar 2020, 8:42 pm	#9
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,575	Re: Maplin Z80 SBC I'm glad you are making progress. If you want to try to 'keep it real' I have some New-Old-Stock believed working 2716s, in fact I think I programmed one with the M12 code a while ago intending to send it on to a fellow forum member but it wasn't required in the end. I also still have my working Maplin SBC system so if there are any concepts, ideas or components you need trying out in a working system let me know. I find it quite mysterious that your EPROM programmer reads the programmed devices back OK and yet the system itself can not - maybe the programmer reads devices at a more slow-but-sure speed.