User contributions for Mahjongg
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2 August 2022
- 22:5622:56, 2 August 2022 diff hist +79 ZX81plus38 simple to build ZX-81 clone →August 3, 2022 bad luck, Iḿ missing one IC
- 22:5222:52, 2 August 2022 diff hist +426 ZX81plus38 simple to build ZX-81 clone →August 3, 2022 bad luck, Iḿ missing one IC
- 22:4222:42, 2 August 2022 diff hist +859 ZX81plus38 simple to build ZX-81 clone →July 26, 2022 Updated all revision 1.8 files on GitHub
26 July 2022
- 18:1318:13, 26 July 2022 diff hist +123 ZX81plus38 simple to build ZX-81 clone →July 26, 2022 Updated all revision 1.8 files on GitHub
- 14:0014:00, 26 July 2022 diff hist +143 ZX81plus38 simple to build ZX-81 clone →July 26, 2022 Updated all revision 1.8 files on GitHub
- 13:5613:56, 26 July 2022 diff hist +358 ZX81plus38 simple to build ZX-81 clone →July 23 2022 JP1 has become unchangeable in rev 1.7
24 July 2022
- 20:2020:20, 24 July 2022 diff hist +3,593 User:Mahjongg No edit summary current
23 July 2022
- 20:1420:14, 23 July 2022 diff hist +412 ZX81plus38 simple to build ZX-81 clone →July 19, That wasn't it
21 July 2022
- 14:3714:37, 21 July 2022 diff hist +20 m ZX81plus38 simple to build ZX-81 clone →July 10, 2022 updated rev 1.7 schematic, Gerber/drill and placement drawing
- 14:3614:36, 21 July 2022 diff hist +1,019 ZX81plus38 simple to build ZX-81 clone →July 15, I have an idea why the first test didn't work
15 July 2022
- 12:4712:47, 15 July 2022 diff hist +4 m ZX81plus38 simple to build ZX-81 clone →July 15, I have an idea why the first test didn't work
- 12:4712:47, 15 July 2022 diff hist +2 m ZX81plus38 simple to build ZX-81 clone →July 15, Have an idea why the first test didn't work
- 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