Uploads by Mahjongg
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This special page shows all uploaded files.
| Date | Name | Thumbnail | Size | Description | Versions |
|---|---|---|---|---|---|
| 14:26, 26 October 2022 | TZXDuino Pico 3D preview.PNG (file) |  |
63 KB | 1 | |
| 14:46, 11 October 2022 | TZXDuino pico-F Cu.pdf (file) |  |
5 KB | top pads to check footprints | 1 |
| 23:44, 27 September 2022 | Rock-Crush.JPG (file) |  |
780 KB | 1 | |
| 23:33, 20 September 2022 | ZX81+38 loading from cassette.JPG (file) |  |
2.73 MB | 1 | |
| 14:00, 15 September 2022 | ZX81plus38rev1,9.pdf (file) | |
321 KB | corrected C7, C8 and R59 | 2 |
| 13:57, 15 September 2022 | ZX81plus38 revision 1.9 schematic.png (file) |  |
104 KB | compressed by reducing to 150dpi and using monochrome png. | 2 |
| 13:42, 15 September 2022 | ZX81plus38rev1,9.png (file) | Error creating thumbnail: File with dimensions greater than 12.5 MP |
491 KB | corrected cassette I/O component values of C7, C8 and R59 | 3 |
| 14:57, 10 September 2022 | ZX81+38 keyboard PCB preview.png (file) |  |
239 KB | revision 1.2 has text repaired of the silkscreen lettering below the buttons, the sequence "YUIOP" was repaired as wel as the "10", which should have been "0", also the text was made a tiny bit bolder. | 4 |
| 03:54, 6 September 2022 | ZX-81Keyboard color.png (file) |  |
56 KB | corrected J3 wiring | 3 |
| 03:48, 6 September 2022 | ZX-81Keyboard color.pdf (file) | |
40 KB | corrected orientation of J3 (keyboard data connector) | 3 |
| 00:53, 31 August 2022 | Wiring.JPG (file) |  |
2.77 MB | 1 | |
| 00:42, 31 August 2022 | Cabling.JPG (file) |  |
2.56 MB | 1 | |
| 23:45, 30 August 2022 | Success!.JPG (file) |  |
2.89 MB | 1 | |
| 23:42, 23 August 2022 | Keyboard with rainbow coloured cablels.JPG (file) |  |
2.9 MB | 1 | |
| 21:40, 23 August 2022 | The back of the in height reduced keyboard PCB with matrix wiring.JPG (file) |  |
2.88 MB | 1 | |
| 21:24, 23 August 2022 | Cut one row more is needed.JPG (file) |  |
2.82 MB | 1 | |
| 20:16, 23 August 2022 | ZXkeyboard on top of ZX-81.JPG (file) |  |
2.52 MB | 1 | |
| 15:30, 23 August 2022 | PCB Preview ZX81+38 rev 1,9 top.png (file) |  |
681 KB | Lates PCB preview | 1 |
| 15:30, 10 July 2022 | ZX81+38 rev 1.8component placement.png (file) |  |
81 KB | 1 | |
| 15:25, 10 July 2022 | ZX81plus38Rev1,8.png (file) |  |
457 KB | 2 | |
| 15:14, 10 July 2022 | ZX81plus38Rev1,8.pdf (file) | |
314 KB | changed all logic to HC, add clock inverter using unused half of U18 | 1 |
| 23:08, 28 June 2022 | P1030120.JPG (file) |  |
772 KB | Better picture plus using PCBites | 1 |
| 22:59, 28 June 2022 | P1030119.JPG (file) |  |
740 KB | 2 | |
| 21:29, 22 June 2022 | ZX81+38 rev 1.7 component placement.png (file) |  |
49 KB | Updated version with U21 = 74HC04 ,rotated J3 and R21 = 330R | 1 |
| 20:26, 22 June 2022 | ZX81plus38 Rev 1,7-resized.png (file) |  |
761 KB | 1 | |
| 19:35, 22 June 2022 | ZX81plus38 Rev 1,7-1.png (file) | Error creating thumbnail: File with dimensions greater than 12.5 MP |
812 KB | rev 1.7 as PNG picture | 1 |
| 19:27, 22 June 2022 | ZX81plus38 Rev 1,7.pdf (file) | |
319 KB | schematic revision 1.7 with various updates, see bottom right block of schematic | 1 |
| 13:18, 4 May 2022 | Rom pinouts for ZX81+38 resized.png (file) |  |
78 KB | 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... | 1 |
| 19:33, 3 May 2022 | Opgebouwd.JPG (file) |  |
770 KB | Zonder geplaatste IC's | 1 |
| 21:36, 17 April 2022 | ZX81+38 rev 1.6 component placement.png (file) |  |
31 KB | component placement drawing for ZX81+38 rev 1.6 | 1 |
| 19:27, 30 March 2022 | PSG sound expansion BOM.pdf (file) | |
48 KB | 1 | |
| 18:29, 28 March 2022 | Layout sound expansion rev2.2 component overview.png (file) |  |
29 KB | updated component overview | 1 |
| 17:28, 28 March 2022 | ZON compatiible PSG with SD-Card interface rev 2.2.PNG (file) |  |
90 KB | 1 | |
| 05:37, 28 March 2022 | PSG with sd-card interface for ZX81plus35 REV 2.2.png (file) |  |
288 KB | as png picture | 1 |
| 02:50, 23 March 2022 | PSG with sd-card interface for ZX81plus35 REV 2.2.pdf (file) | |
29 KB | New version with corrected 74HCT02 but also with the changes to the SD-CARD interface that makes it working | 1 |
| 17:32, 21 March 2022 | ZX81+35 REV 4.2 layout preview.PDF (file) | |
210 KB | Top layer plus silk screen preview of ZX81+35 Rev4.2 | 1 |
| 17:07, 21 March 2022 | ZX81+35 REV 4.2. schematic color.pdf (file) | |
73 KB | Version suitable for PSG with SD-Card interface, with 16K ROM support (default) and with A13 & A14 corrected, swapped, on expansion port, also now with 0 (CPU) clock instead of 3.5MHz on expansion port | 1 |
| 17:43, 15 March 2022 | The hardware thomas used, not the various patches on the PSG board.jpg (file) |  |
183 KB | Thomas worked on my PSG board for the ZX-81+35 and used some patches, and his firmware in (expanded) ROM to get a SD-card interface working. | 1 |
| 17:41, 15 March 2022 | The OS menu, showing files you can download using the SD-card interface.jpeg (file) |  |
178 KB | A list of files (.ROM files) you can choose using the firmware with thomas sd-card interface software | 1 |
| 17:38, 15 March 2022 | Game loaded on zx-81+35 using the sd-card interface.jpeg (file) |  |
164 KB | thomas used his PSG clone board to load a game file | 1 |
| 02:42, 9 March 2022 | PanGalaksija component placing rev1.0 Preliminary.png (file) |  |
100 KB | picture of preliminary component placement of PanGalaksija rev 1.0 | 1 |
| 02:32, 9 March 2022 | PanGalaksija-component placement rev 1.0.pdf (file) | |
66 KB | component placement (quiet picture, so no pads) | 1 |
| 02:17, 9 March 2022 | PanGalaksija schematic Keys rev1.0.png (file) |  |
229 KB | This is the keyboard section of PanGalaksija revision 1.0 | 1 |
| 02:13, 9 March 2022 | PanGalaksija schematic main rev1.0.png (file) |  |
493 KB | first full schematic of PanGalaksija main-section revision 1.0. picture version of the .PDF | 1 |
| 02:03, 9 March 2022 | PanGalaksija schematic rev1.0.pdf (file) | |
286 KB | first full schematic main & keyboard | 1 |
| 14:25, 17 February 2022 | Keyboard PanGalaksija preview.png (file) |  |
361 KB | 1 | |
| 01:58, 16 February 2022 | PanGalaksija 3D keyboard preview.png (file) |  |
66 KB | 1 | |
| 01:41, 16 February 2022 | PanGalaksija keyboard schematic preview.pdf (file) | |
62 KB | 1 | |
| 17:06, 14 February 2022 | Desktop computer GALAKSIJA, 1983.jpg (file) |  |
1.34 MB | 1 | |
| 14:31, 14 February 2022 | Galakija Keyboard schematic.png (file) |  |
209 KB | 1 |
