User contributions for Mahjongg
Jump to navigation
Jump to search
15 July 2022
- 12:4612:46, 15 July 2022 diff hist +543 ZX81plus38 simple to build ZX-81 clone →July 14, 2022 Updated the layout with correction of NPTH holes and USB connector positions
14 July 2022
- 00:0700:07, 14 July 2022 diff hist +15 m ZX81plus38 simple to build ZX-81 clone →July 14, 2022 Updated the layout with correction of NPTH holes and USB connector positions
- 00:0600:06, 14 July 2022 diff hist +2,294 ZX81plus38 simple to build ZX-81 clone →July 10, 2022 updated rev 1.7 schematic, Gerber/drill and placement drawing
10 July 2022
- 15:3215:32, 10 July 2022 diff hist +74 ZX81plus38 simple to build ZX-81 clone →July 10, 2022 updated rev 1.7 schematic, Gerber/drill and placement drawing
- 15:3015:30, 10 July 2022 diff hist 0 N File:ZX81+38 rev 1.8component placement.png No edit summary current
- 15:2715:27, 10 July 2022 diff hist +53 ZX81plus38 simple to build ZX-81 clone →July 10, 2022 updated rev 1.7 schematic, Gerber/drill and placement drawing
- 15:2515:25, 10 July 2022 diff hist 0 File:ZX81plus38Rev1,8.png Mahjongg uploaded a new version of File:ZX81plus38Rev1,8.png current
- 15:1915:19, 10 July 2022 diff hist 0 N File:ZX81plus38Rev1,8.png No edit summary
- 15:1815:18, 10 July 2022 diff hist +150 ZX81plus38 simple to build ZX-81 clone →July 6, 2022 I made an observation while building up my copy of the ZX81+38 that shook me
- 15:1415:14, 10 July 2022 diff hist +82 N File:ZX81plus38Rev1,8.pdf changed all logic to HC, add clock inverter using unused half of U18 current
6 July 2022
- 18:3418:34, 6 July 2022 diff hist +36 m ZX81plus38 simple to build ZX-81 clone →July 6, 2022 I made an observation while building up my copy of the ZX81+38 that shook me
- 17:4217:42, 6 July 2022 diff hist +103 ZX81plus38 simple to build ZX-81 clone →July 6, 2022 I made an observation while building up my copy of the ZX81+38 that shook me
- 17:2717:27, 6 July 2022 diff hist +3,466 ZX81plus38 simple to build ZX-81 clone →June 29, 2022 The crystal oscillator is working!
29 June 2022
- 00:4800:48, 29 June 2022 diff hist 0 ZX81plus38 simple to build ZX-81 clone →June 29, 2022 The crystal oscillator is working!
28 June 2022
- 23:2923:29, 28 June 2022 diff hist +174 ZX81plus38 simple to build ZX-81 clone →June 29, 2022 The crystal oscillator is working!
- 23:2723:27, 28 June 2022 diff hist +14 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 23:2623:26, 28 June 2022 diff hist +63 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 23:0923:09, 28 June 2022 diff hist 0 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 23:0823:08, 28 June 2022 diff hist +47 N File:P1030120.JPG Better picture plus using PCBites current
- 22:5922:59, 28 June 2022 diff hist 0 File:P1030119.JPG Mahjongg uploaded a new version of File:P1030119.JPG current
- 22:5822:58, 28 June 2022 diff hist −48 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 22:5722:57, 28 June 2022 diff hist +66 N File:P1030119.JPG A picture showing measuring the 13MHz crystal signal
- 22:5422:54, 28 June 2022 diff hist +7 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 22:5222:52, 28 June 2022 diff hist −2 ZX81plus38 simple to build ZX-81 clone →The crystal oscillator is working!
- 22:5222:52, 28 June 2022 diff hist +108 ZX81plus38 simple to build ZX-81 clone →It happened I uploaded all ZX81+38 revision 1.7 files to GitHub
23 June 2022
- 17:0617:06, 23 June 2022 diff hist +638 ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
22 June 2022
- 21:3521:35, 22 June 2022 diff hist 0 m ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
- 21:3021:30, 22 June 2022 diff hist +78 ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
- 21:2921:29, 22 June 2022 diff hist +74 N File:ZX81+38 rev 1.7 component placement.png Updated version with U21 = 74HC04 ,rotated J3 and R21 = 330R current
- 20:2720:27, 22 June 2022 diff hist +41 ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
- 20:2620:26, 22 June 2022 diff hist 0 N File:ZX81plus38 Rev 1,7-resized.png No edit summary current
- 20:0320:03, 22 June 2022 diff hist +1 m ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
- 19:3519:35, 22 June 2022 diff hist +36 N File:ZX81plus38 Rev 1,7-1.png rev 1.7 as PNG picture current
- 19:2919:29, 22 June 2022 diff hist +59 ZX81plus38 simple to build ZX-81 clone →juni 22 2022, got a free Xtal and 74HCU04, Finished Revision 1.7
- 19:2719:27, 22 June 2022 diff hist +94 N File:ZX81plus38 Rev 1,7.pdf schematic revision 1.7 with various updates, see bottom right block of schematic current
- 19:2519:25, 22 June 2022 diff hist +2,237 ZX81plus38 simple to build ZX-81 clone →juni 7 2022, still have crystal oscilator problems for my own copy
8 June 2022
- 15:2815:28, 8 June 2022 diff hist −1 m ZX81plus38 simple to build ZX-81 clone →May 24, 2020 slowly making progress
- 15:2715:27, 8 June 2022 diff hist +568 ZX81plus38 simple to build ZX-81 clone →juni 1 2022, crystal oscilator is working!
1 June 2022
- 18:5518:55, 1 June 2022 diff hist +74 ZX81plus38 simple to build ZX-81 clone →juni 1 2022, crystal oscilator is working!
- 18:5318:53, 1 June 2022 diff hist +1 m ZX81plus38 simple to build ZX-81 clone →juni 1 2022, crystal oscilator is working!
- 18:5218:52, 1 June 2022 diff hist +458 ZX81plus38 simple to build ZX-81 clone →juni 1 2022, crystal oscilator is working!
- 17:2417:24, 1 June 2022 diff hist +222 m ZX81plus38 simple to build ZX-81 clone →juni 1 2022, crystal oscilator is working!
- 17:2017:20, 1 June 2022 diff hist +766 ZX81plus38 simple to build ZX-81 clone →junu 1 2022, crystal oscilator is working!
- 17:0917:09, 1 June 2022 diff hist +6 m ZX81plus38 simple to build ZX-81 clone No edit summary
- 13:1013:10, 1 June 2022 diff hist +96 ZX81plus38 simple to build ZX-81 clone →May 24, 2020 slowly making progress
25 May 2022
- 02:5402:54, 25 May 2022 diff hist +4 m ZX81plus38 simple to build ZX-81 clone →May 24, 2020 slowly making progress
- 01:4401:44, 25 May 2022 diff hist +186 m ZX81plus38 simple to build ZX-81 clone →May 24, 2020 slowly making progress
- 01:4201:42, 25 May 2022 diff hist +14 ZX81plus38 simple to build ZX-81 clone →May 3, 2022 After more than two year of covid related delay I finally built my own copy
- 01:4101:41, 25 May 2022 diff hist +54 ZX81plus38 simple to build ZX-81 clone →May 24, 2020 slowly making progress
- 01:4001:40, 25 May 2022 diff hist +3,214 ZX81plus38 simple to build ZX-81 clone →May 3, 2022 After more than two year of covid related delay I finally built my own copy