User contributions for Mahjongg

21 August 2016

• 23:2423:24, 21 August 2016 diff hist +394‎ N File:ZX81+35 REV 4.0.pdf ‎ New schematic which has the edge connector rotated 180 degrees, to correspond with the layout which has to get the same correction to correspond to the original ZX81 which has pin 1 on the left hand side (bottom side for the ZX81+35) also the edge conn...

9 August 2016

• 20:5220:52, 9 August 2016 diff hist +45‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.6, decided upon a DM3D Push-Pull micro-SD card reader
• 20:5020:50, 9 August 2016 diff hist 0‎ N File:PSG for ZX81+35 REV 1.6.png ‎No edit summary
• 20:2920:29, 9 August 2016 diff hist +26‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.6, decided upon a DM3D Push-Pull micro-SD card reader
• 20:2720:27, 9 August 2016 diff hist +33‎ N File:PSG for ZX81+35 REV 1.6.pdf ‎ version with DM3D-SF card reader.
• 20:2420:24, 9 August 2016 diff hist +332‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support

27 July 2016

• 18:3118:31, 27 July 2016 diff hist 0‎ File:PSG for ZX81+35 REV 1.3 3D PREVIEW.png ‎ Mahjongg uploaded a new version of File:PSG for ZX81+35 REV 1.3 3D PREVIEW.png

26 July 2016

• 21:3021:30, 26 July 2016 diff hist 0‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:2921:29, 26 July 2016 diff hist 0‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:2921:29, 26 July 2016 diff hist +7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:2821:28, 26 July 2016 diff hist −7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:2821:28, 26 July 2016 diff hist +45‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:2621:26, 26 July 2016 diff hist +17‎ N File:PSG for ZX81+35 REV 1.5.png ‎ multi PSG support
• 21:1621:16, 26 July 2016 diff hist +1‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.5 with multiple PSG board support
• 21:1521:15, 26 July 2016 diff hist +680‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:0221:02, 26 July 2016 diff hist +45‎ N File:PSG for ZX81+35 REV 1.5.pdf ‎ Added possibility to use multiple PSG boards.

24 July 2016

• 22:3122:31, 24 July 2016 diff hist +185‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 22:2822:28, 24 July 2016 diff hist 0‎ File:PSG for ZX81+35 REV 1.4.pdf ‎ Mahjongg uploaded a new version of File:PSG for ZX81+35 REV 1.4.pdf
• 21:3321:33, 24 July 2016 diff hist +7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:3021:30, 24 July 2016 diff hist −7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:3021:30, 24 July 2016 diff hist 0‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:2921:29, 24 July 2016 diff hist +7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:2821:28, 24 July 2016 diff hist +38‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Revision 1.4 with level shifting resistor dividers
• 21:2521:25, 24 July 2016 diff hist +30‎ N File:PSG for ZX81+35 REV 1.4.png ‎ version with resistor dividers
• 21:1621:16, 24 July 2016 diff hist +526‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎second final version, with sd-card interface
• 21:0821:08, 24 July 2016 diff hist +199‎ N File:PSG for ZX81+35 REV 1.4.pdf ‎ revised version with resistor dividers between PSG and SD-card slot to convert 5V PSG levels to 3V3 SD-card levels, datalines are pulled up clock and latch lines not (pulled low by resistor divider).
• 14:0314:03, 24 July 2016 diff hist +872‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎second final version, with sd-card interface

21 July 2016

• 13:4413:44, 21 July 2016 diff hist +46‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎second final version, with sd-card interface
• 13:4313:43, 21 July 2016 diff hist +57‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎No edit summary
• 13:4113:41, 21 July 2016 diff hist +43‎ N File:PSG for ZX81+35 REV 1.3 3D PREVIEW.png ‎ PSG board with SD-card interface 3D preview

19 July 2016

• 22:0022:00, 19 July 2016 diff hist −3‎ m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎second final version, without sd-card interface
• 22:0022:00, 19 July 2016 diff hist +153‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎first final version, without sd-card interface
• 21:5821:58, 19 July 2016 diff hist +31‎ N File:PSG for ZX81+35 REV 1.3.png ‎ FIRST VERSION WITH SD-CARD SLOT
• 21:5421:54, 19 July 2016 diff hist +31‎ N File:PSG for ZX81+35 REV 1.3.pdf ‎ FIRST VERSION WITH SD-CARD SLOT

14 July 2016

• 22:1922:19, 14 July 2016 diff hist +27‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎first alpha version
• 22:1922:19, 14 July 2016 diff hist +6‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Third version
• 22:1822:18, 14 July 2016 diff hist +5‎ m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎My own (ZX81+35) version

12 July 2016

• 21:4121:41, 12 July 2016 diff hist +1‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Third version
• 21:4021:40, 12 July 2016 diff hist 0‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Third version
• 21:3921:39, 12 July 2016 diff hist −1‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎No edit summary
• 21:3721:37, 12 July 2016 diff hist +7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Third version
• 21:3621:36, 12 July 2016 diff hist −7‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Third version
• 21:3621:36, 12 July 2016 diff hist +48‎ N File:PSG for ZX81+35 REV 1.2.png ‎ Third version, complete but GPIO's not yet used.
• 21:3421:34, 12 July 2016 diff hist −2‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎Second version
• 21:3221:32, 12 July 2016 diff hist +13‎ N File:PSG for ZX81+35 REV 1.2.pdf ‎ third version

9 July 2016

• 13:1713:17, 9 July 2016 diff hist +209‎ ZX81PLUS35 ZX81 clone ‎ →‎17 May, 2016 Started with PSG expansion board
• 13:1513:15, 9 July 2016 diff hist +96‎ ZX81PLUS35 ZX81 clone ‎ →‎17 May, 2016 Started with PSG expansion board
• 13:0813:08, 9 July 2016 diff hist +10‎ m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎My own version
• 13:0713:07, 9 July 2016 diff hist +5‎ m Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎No edit summary

6 July 2016

• 12:5012:50, 6 July 2016 diff hist +33‎ Zon ZX-81 Programmable Sound Generator expansion for ZX81PLUS35 with working SD-Card ‎ →‎My own version