User contributions for Mahjongg
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22 June 2022
- 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
4 May 2022
- 13:3513:35, 4 May 2022 diff hist +2 ZX81plus38 simple to build ZX-81 clone →April 17, 2022 I Produced a component placement diagram for rev 1.6
- 13:3513:35, 4 May 2022 diff hist +3 m 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
- 13:3413:34, 4 May 2022 diff hist +8 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
- 13:3313:33, 4 May 2022 diff hist +296 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
- 13:2913:29, 4 May 2022 diff hist +986 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
- 13:1813:18, 4 May 2022 diff hist +442 N File:Rom pinouts for ZX81+38 resized.png drawing explaining three kinds of ROM's that can be fit into the ZX81+38 ROM socket, the three options are: Original ZX-81 ROM a 27C256 OTP (default choice) a 28C256 if you expect you will need to change to contents of the ROM regularly reference the... current
3 May 2022
- 19:4819:48, 3 May 2022 diff hist −1 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
- 19:4719:47, 3 May 2022 diff hist +310 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
- 19:3319:33, 3 May 2022 diff hist +36 N File:Opgebouwd.JPG Zonder geplaatste IC's current
- 19:2719:27, 3 May 2022 diff hist +340 ZX81plus38 simple to build ZX-81 clone →April 17, 2022 I Produced a component placement diagram for rev 1.6
18 April 2022
- 17:2217:22, 18 April 2022 diff hist +1 m ZX81plus38 simple to build ZX-81 clone →April 17, 2022 I Produced a component placement diagram for rev 1.6
- 17:1617:16, 18 April 2022 diff hist +41 ZX81plus38 simple to build ZX-81 clone →April 17, 2022 I Produced a component placement diagram for rev 1.6
- 17:1317:13, 18 April 2022 diff hist +4 m ZX81plus38 simple to build ZX-81 clone →April 17, 2022 Produced component placement diagram for rev 1.6
17 April 2022
- 21:5421:54, 17 April 2022 diff hist +2 m ZX81plus38 simple to build ZX-81 clone →April 17, 2022 Produced component placement diagram for rev 1.6
- 21:5121:51, 17 April 2022 diff hist +58 N File:ZX81+38 rev .6 component placement.png Mahjongg moved page File:ZX81+38 rev .6 component placement.png to File:ZX81+38 rev 1.6 component placement.png: renaming to rev 1.6 instead of .6 current Tag: New redirect
- 21:5121:51, 17 April 2022 diff hist 0 m File:ZX81+38 rev 1.6 component placement.png Mahjongg moved page File:ZX81+38 rev .6 component placement.png to File:ZX81+38 rev 1.6 component placement.png: renaming to rev 1.6 instead of .6 current
- 21:4921:49, 17 April 2022 diff hist +743 ZX81plus38 simple to build ZX-81 clone →April 17, 2022 Produced component placement diagram for rev 1.6
- 21:4121:41, 17 April 2022 diff hist +71 ZX81plus38 simple to build ZX-81 clone →26 november 2020, I found a suitable soldering iron at home
- 21:3621:36, 17 April 2022 diff hist +61 N File:ZX81+38 rev 1.6 component placement.png component placement drawing for ZX81+38 rev 1.6
12 April 2022
- 16:5616:56, 12 April 2022 diff hist 0 Mahjongg arrrgh
- 16:5516:55, 12 April 2022 diff hist +1 Mahjongg No edit summary
- 16:5416:54, 12 April 2022 diff hist +73 N ZONX81plus4 PSG Board with sd-card interface for the ZX-81 Mahjongg moved page ZONX81plus4 PSG Board with sd-card interface for the ZX-81 to ZONX81plus41 PSG Board with sd-card interface for the ZX-81: plus 41 not plus 4 current Tag: New redirect
- 16:5416:54, 12 April 2022 diff hist 0 m ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub Mahjongg moved page ZONX81plus4 PSG Board with sd-card interface for the ZX-81 to ZONX81plus41 PSG Board with sd-card interface for the ZX-81: plus 41 not plus 4
- 16:5316:53, 12 April 2022 diff hist +8 Mahjongg No edit summary
- 16:5116:51, 12 April 2022 diff hist +72 N ZONX81plus4 PSG Board with sd-card interface Mahjongg moved page ZONX81plus4 PSG Board with sd-card interface to ZONX81plus4 PSG Board with sd-card interface for the ZX-81: explained it is for a real ZX-81 (or my zx81+38 clone) current Tag: New redirect
- 16:5116:51, 12 April 2022 diff hist 0 m ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub Mahjongg moved page ZONX81plus4 PSG Board with sd-card interface to ZONX81plus4 PSG Board with sd-card interface for the ZX-81: explained it is for a real ZX-81 (or my zx81+38 clone)
- 16:4716:47, 12 April 2022 diff hist −45 Mahjongg No edit summary
- 16:4416:44, 12 April 2022 diff hist −58 S Blanked the page current Tag: Blanking
- 16:4316:43, 12 April 2022 diff hist +58 N S Mahjongg moved page S to ZONX81plus4 PSG Board with sd-card interface: renaming of product Tag: New redirect
- 16:4316:43, 12 April 2022 diff hist 0 m ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub Mahjongg moved page S to ZONX81plus4 PSG Board with sd-card interface: renaming of product
- 16:4116:41, 12 April 2022 diff hist +25 N Zon ZX-81 compatible PSG + 32K RAM and SD-Card interface expansion for ZX-81 and clones Mahjongg moved page Zon ZX-81 compatible PSG + 32K RAM and SD-Card interface expansion for ZX-81 and clones to ZONX81plus4 current Tag: New redirect
- 16:4116:41, 12 April 2022 diff hist 0 m ZONX81plus4 Mahjongg moved page Zon ZX-81 compatible PSG + 32K RAM and SD-Card interface expansion for ZX-81 and clones to ZONX81plus4 current
- 16:4116:41, 12 April 2022 diff hist +15 N ZONX81plus4 Mahjongg moved page Zon ZX-81 compatible PSG + 32K RAM and SD-Card interface expansion for ZX-81 and clones to S Tag: New redirect
- 16:4116:41, 12 April 2022 diff hist 0 m ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub Mahjongg moved page Zon ZX-81 compatible PSG + 32K RAM and SD-Card interface expansion for ZX-81 and clones to S
- 16:3916:39, 12 April 2022 diff hist −5 Mahjongg No edit summary
- 16:3816:38, 12 April 2022 diff hist +1 Mahjongg No edit summary
- 16:3616:36, 12 April 2022 diff hist +2 Mahjongg No edit summary
- 16:3416:34, 12 April 2022 diff hist +1,662 Mahjongg No edit summary
- 16:0416:04, 12 April 2022 diff hist −3 m Repair PET2001 AKA CMB 3032 No edit summary current
- 16:0416:04, 12 April 2022 diff hist +1 Repair PET2001 AKA CMB 3032 status = completed
5 April 2022
- 18:5318:53, 5 April 2022 diff hist +82 ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub No edit summary
- 18:2218:22, 5 April 2022 diff hist −2 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card No edit summary current
- 18:1818:18, 5 April 2022 diff hist 0 m ZX81PLUS35 ZX81 clone No edit summary current
- 18:1818:18, 5 April 2022 diff hist −3 ZX81PLUS35 ZX81 clone No edit summary
- 18:1418:14, 5 April 2022 diff hist +7 m Galaksija →March 9, schematic revision 1.0 finished, plus placement of components current
- 18:1318:13, 5 April 2022 diff hist +1 Galaksija →March 9, schematic revision 1.0 finished, plus placement of components
- 18:1118:11, 5 April 2022 diff hist −4 Galaksija No edit summary
- 18:0818:08, 5 April 2022 diff hist +414 ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub →April 5, 20222 Decided on a name for this product
- 17:1817:18, 5 April 2022 diff hist +224 ZONX81plus41 PSG Board with sd-card interface for the ZX-81 now with rev 1.2 firmware on GitHub No edit summary
- 13:3413:34, 5 April 2022 diff hist +241 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 13:2613:26, 5 April 2022 diff hist +695 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 13:1413:14, 5 April 2022 diff hist 0 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 13:1313:13, 5 April 2022 diff hist +1 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card No edit summary
- 12:5412:54, 5 April 2022 diff hist +98 N Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 Mahjongg moved page Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 to Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card: Managed to get the SD-card interface working, and with menu driven firm... current Tag: New redirect
- 12:5412:54, 5 April 2022 diff hist 0 m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card Mahjongg moved page Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 to Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card: Managed to get the SD-card interface working, and with menu driven firm...
- 12:5312:53, 5 April 2022 diff hist +27 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card No edit summary
30 March 2022
- 19:3019:30, 30 March 2022 diff hist +122 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →Wednesday March 30 2022 BOM ready
- 19:2719:27, 30 March 2022 diff hist 0 N File:PSG sound expansion BOM.pdf No edit summary current
- 19:2619:26, 30 March 2022 diff hist −17 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →Monday March 28 2022 Layout ready of rev 2.2
29 March 2022
- 01:2301:23, 29 March 2022 diff hist +57 m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →Monday March 28 2022 Layout ready of rev 2.2
28 March 2022
- 18:3118:31, 28 March 2022 diff hist +107 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →Monday March 28 2022 Layout ready of rev 2.2
- 18:2918:29, 28 March 2022 diff hist +40 N File:Layout sound expansion rev2.2 component overview.png updated component overview current
- 17:3217:32, 28 March 2022 diff hist +205 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 17:2917:29, 28 March 2022 diff hist +16 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card No edit summary
- 17:2817:28, 28 March 2022 diff hist 0 N File:ZON compatiible PSG with SD-Card interface rev 2.2.PNG No edit summary current
- 05:5905:59, 28 March 2022 diff hist +50 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 05:5705:57, 28 March 2022 diff hist +11 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 05:5605:56, 28 March 2022 diff hist +426 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 05:4705:47, 28 March 2022 diff hist +487 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 05:3905:39, 28 March 2022 diff hist +33 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 05:3705:37, 28 March 2022 diff hist +28 N File:PSG with sd-card interface for ZX81plus35 REV 2.2.png as png picture current
23 March 2022
- 03:0203:02, 23 March 2022 diff hist +88 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 23, 2022 added Thomas patches to rev2.1 created revision 2.2
- 03:0003:00, 23 March 2022 diff hist +575 Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card →March 16, 2022 have the details from Thomas
- 02:5002:50, 23 March 2022 diff hist +121 N File:PSG with sd-card interface for ZX81plus35 REV 2.2.pdf New version with corrected 74HCT02 but also with the changes to the SD-CARD interface that makes it working current
21 March 2022
- 23:0123:01, 21 March 2022 diff hist +48 m ZX81PLUS35 ZX81 clone bridge too far
- 22:5822:58, 21 March 2022 diff hist +26 ZX81PLUS35 ZX81 clone →May 21, 2022 revision 4.2 supports 16K ROM space
- 22:5622:56, 21 March 2022 diff hist +1 m ZX81PLUS35 ZX81 clone →May 17, 2022 revision 4.2 supports 16K ROM space
- 17:3917:39, 21 March 2022 diff hist +4 ZX81PLUS35 ZX81 clone →May 17, 2022 revision 4.2 supports 16K ROM space
- 17:3817:38, 21 March 2022 diff hist +98 ZX81PLUS35 ZX81 clone →May 17, 2022 revision 4.2 supports 16K ROM space
- 17:3617:36, 21 March 2022 diff hist +70 ZX81PLUS35 ZX81 clone →May 17, 2022 revision 4.2 supports 16K ROM space