Uploads by Mahjongg
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This special page shows all uploaded files.
| Date | Name | Thumbnail | Size | Description | Versions |
|---|---|---|---|---|---|
| 19:44, 28 June 2016 | PSG for ZX81+35 REV 1.0.png (file) |  |
272 KB | First version PSG for ZX81+35 | 1 |
| 11:26, 24 June 2016 | Sound expansion (preliminary)-1.png (file) | -1.png) |
214 KB | final version | 4 |
| 21:03, 21 June 2016 | ZONX sound expansion REV 2,0.pdf (file) |  |
22 KB | 2 | |
| 21:06, 14 June 2016 | ZON X sound expansion.pdf (file) | |
19 KB | ZX81 Programmable Sound expansion from BI-PAK; succeed the earlier model ZON X-81 | 1 |
| 21:20, 7 June 2016 | Sound expansion (preliminary).pdf (file) | |
18 KB | ADDED PRELIMINARY LOGIC | 3 |
| 17:26, 8 April 2016 | Sound & edge connector expansion board example.png (file) |  |
69 KB | An example of a possible expansion board, AY-8912 (ZON-X) sound, SD-Card interface and standard edge connector. | 1 |
| 17:31, 6 April 2016 | 1e ontwerp bodem met PCB's.png (file) |  |
204 KB | Better angle, added screws | 3 |
| 18:28, 5 April 2016 | 1e ontwerp concept bodem.png (file) |  |
38 KB | 1e concept van bodem ZX81+35 | 1 |
| 23:59, 2 April 2016 | ZX81+35 REV 3.0.pdf (file) | |
68 KB | Changed R59 to 10K (from 4K7) for better stability with cassette interface pulses that contain a lot of odd harmonics, which would otherwise randomly "split" the pulse in two digital pulses. | 7 |
| 18:23, 1 April 2016 | ZX81+35 revision 2.2 december 2015 front preview.png (file) |  |
228 KB | New updated version with pinheader keyboard connection and mounting holes | 2 |
| 17:07, 28 March 2016 | Average value after 0,15 sec with 4.7nF cap.png (file) |  |
47 KB | 1 | |
| 16:48, 28 March 2016 | Average value after 0,15 sec with 10uF cap.png (file) |  |
48 KB | 1 | |
| 15:01, 27 March 2016 | Layout ZX81+35 Rev 3 27 May 2016.png (file) |  |
231 KB | 1 | |
| 11:51, 27 March 2016 | Swing.png (file) |  |
15 KB | 1 | |
| 15:31, 25 March 2016 | Picture of spice Wave forms on cassette interface ZX81+35.png (file) |  |
66 KB | Picture of simulation wave forms of improved cassette interface ZX81+35 | 1 |
| 15:29, 25 March 2016 | Picture of Spice model of cassette interface ZX81+35.png (file) |  |
34 KB | picture of improved cassette interface | 1 |
| 15:28, 25 March 2016 | Wave forms on cassette interface ZX81+35.pdf (file) | |
20 KB | Simulation of wave forms on improved cassette interface | 1 |
| 15:28, 25 March 2016 | Spice model of cassette interface ZX81+35.pdf (file) | |
5 KB | improved cassette interface | 1 |
| 00:38, 23 March 2016 | Cassette interface march 23 2016.png (file) |  |
45 KB | first revised cassette interface | 1 |
| 23:58, 16 March 2016 | Improved video quality.jpg (file) |  |
890 KB | 1 | |
| 23:45, 16 March 2016 | ZX81+35 perfect checkerboard.jpg (file) |  |
109 KB | 2 | |
| 23:35, 16 March 2016 | ZX81+35 fixed video.jpg (file) |  |
109 KB | 1 | |
| 22:27, 9 March 2016 | PTDC0252.JPG (file) |  |
1.57 MB | tv picture produced by ZX81+35 on march 8 2016 | 1 |
| 01:59, 28 February 2016 | Its alive!.JPG (file) |  |
1.82 MB | first sign of life for the ZX81+35 | 1 |
| 22:21, 21 February 2016 | ZX81+35 REV 2.2 built up.JPG (file) |  |
2.91 MB | All components soldered to the board, except part of the Joystick logic (to make debugging the keyboard layout easier) | 1 |
| 19:32, 21 February 2016 | GalaxySCH.pdf (file) | |
86 KB | another version, based on a GAL (of which the content description is not available) so nearly worthless. | 1 |
| 19:30, 21 February 2016 | Galaksija based on GAL logic schematic diagram.jpg (file) |  |
129 KB | another version, based on a GAL (of which the content description is not available) so nearly worthless. | 1 |
| 19:19, 21 February 2016 | Original Galaksija schematic diagram.jpg (file) |  |
129 KB | the diagram as first published | 1 |
| 23:46, 12 February 2016 | Galaksija schematic.png (file) |  |
37 KB | rotated for better view | 2 |
| 23:54, 9 February 2016 | Galaksija.jpg (file) |  |
32 KB | 1 | |
| 23:52, 9 February 2016 | Galaksija 1984.jpg (file) |  |
32 KB | galaksija from Wikipedia | 1 |
| 01:24, 8 February 2016 | Galaksija project translation.pdf (file) | |
197 KB | translation of thesis document about the CMOS implementation of the GALAKSIJA retro home build computer. this is my own, google translate assisted translation. first draft. original is here: https://www.tablix.org/~avian/blog/papers/tomaz_solc_replika_... | 1 |
| 23:59, 2 February 2016 | ZX81+35 REV 2.3.pdf (file) | |
68 KB | rev 2.3 with ZX81 compatible keyboard interface. | 1 |
| 23:52, 2 February 2016 | REV 2.3 FINISHED LAYOUT 2 FEBRUARY 2016.png (file) |  |
212 KB | version 2.3 with ZX81 compatible keyboard connector | 1 |
| 15:27, 31 January 2016 | PCBPreview ZX81+35 rev 2.2 bottom.png (file) |  |
282 KB | 1 | |
| 15:24, 31 January 2016 | PCBPreview ZX81+35 rev 2.2 top.png (file) |  |
545 KB | 1 | |
| 22:43, 26 January 2016 | REV 2.2 FINISHED LAYOUT 29 DECEMBER 2015.png (file) |  |
162 KB | Connected both GND pins of RCA connector for better compatibility with various connectors (with built in switches). | 3 |
| 22:36, 26 January 2016 | ZX81+35 REV 2.2 color.pdf (file) | |
72 KB | color version | 1 |
| 22:34, 26 January 2016 | ZX81+35 REV 2.2.pdf (file) | |
68 KB | Small update, changed RCA plug GND wiring so both pads are GND | 10 |
| 22:08, 26 January 2016 | ZX81+35 REV 2.utsch.sch (file) |  |
3.2 MB | This is a preliminary backup of ZX81+35.UTSCH uploaded as a ".SCH" to circumvent permitted file types | 1 |
| 22:42, 23 January 2016 | ZX81+35 rev2.2 - Bill Of Materials.pdf (file) | |
26 KB | better version | 2 |
| 22:36, 23 January 2016 | ZX81+358 rev2.2 Bill Of Materials.ods (file) | |
23 KB | final version BOM for ZX81+35 rev 2.2 | 2 |
| 22:32, 23 January 2016 | ZX81+35 Rev 2.2 - Bill Of Materials-2.png (file) |  |
245 KB | BILL OF MATERIALS ZX81+35 rev 2.2 page 2 | 1 |
| 22:21, 23 January 2016 | ZX81+35 Rev 2.2 - Bill Of Materials-1.png (file) |  |
261 KB | Bill of materials ZX81+34 Rev 2.2 page 1 | 1 |
| 21:12, 16 January 2016 | Magnavox Odyssey insides.jpg (file) |  |
183 KB | Modular build up of the Magnavox Odyssey | 1 |
| 20:56, 16 January 2016 | Cpc464.computer.750pix.jpg (file) |  |
76 KB | amstrad CPC464 being used to play a game | 1 |
| 16:17, 10 January 2016 | ZX81+35 silkscreen overview.png (file) |  |
84 KB | zx81+35 revision 2.2 component placement drawing | 1 |
| 22:11, 30 December 2015 | ZX81+35 rev 2.2 schematic.png (file) |  |
674 KB | December 30, 2015 replaced U10 with spare inverter, renamed U32 to U10, added decoupling cap. | 7 |
| 01:50, 29 December 2015 | REV 2.1 FINISHED LAYOUT 29 DECEMBER 2015.png (file) |  |
171 KB | real rev 2.2 layout screenshot | 1 |
| 00:30, 23 December 2015 | Situatie 23 December 2015.png (file) |  |
136 KB | a bit of work done | 2 |
