github.com/mahjongg2.ZX81plus38
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Author SHA1 Message Date
mahjongg2
30b38415b0 Update README.md 2023-01-23 21:47:13 +01:00
mahjongg2
7417701df9 Update README.md 2023-01-23 19:19:44 +01:00
mahjongg2
9099bb8a30 Update README.md 2023-01-23 19:17:38 +01:00
mahjongg2
61153e0385 Update README.md 2022-12-15 18:33:23 +01:00
mahjongg2
1483e7d696 Add files via upload 
the keyboard overlay for my ZX81+38 keyboard with real buttons
 2022-12-15 18:23:51 +01:00
mahjongg2
e172f40459 Update README.md 2022-11-23 13:25:59 +01:00
mahjongg2
c7a4f1caa4 Update README.md 2022-11-23 13:19:53 +01:00
mahjongg2
3fe0b79dc4 Update README.md 2022-11-22 18:07:27 +01:00
mahjongg2
88d3de1a91 Update README.md 2022-11-22 18:02:53 +01:00
mahjongg2
1ecdf6596f Update README.md 2022-11-22 18:00:11 +01:00
mahjongg2
88782f1aa2 Update README.md 2022-11-15 22:22:15 +01:00
mahjongg2
4f8a120db0 Update README.md 2022-11-15 18:59:13 +01:00
mahjongg2
13a5bfcf51 Update README.md 2022-11-08 12:45:12 +01:00
mahjongg2
e5fa5cf7e8 Update README.md 2022-11-08 12:39:25 +01:00
mahjongg2
96975582d0 Update README.md 2022-11-08 12:37:15 +01:00
mahjongg2
dd9a766ffb Update README.md 2022-11-08 12:35:51 +01:00
mahjongg2
b4160dca8b Update README.md 2022-10-29 18:13:34 +02:00
mahjongg2
7e6e52b3d2 Update README.md 2022-10-29 17:59:53 +02:00
mahjongg2
b2405dad58 Update README.md 2022-10-29 17:56:56 +02:00
mahjongg2
ef64b90d51 Update README.md 2022-10-29 14:56:57 +02:00
mahjongg2
5310bf9b1e Update README.md 2022-10-26 18:21:21 +02:00
mahjongg2
5d7a3452b1 Update README.md 2022-10-06 17:37:33 +02:00
mahjongg2
cc175ee53d Add files via upload 
6 October, 2022 small corrections (74LS11 from mouser must also be a 74HC11, and the SRAM must be a 600mil wide and not a 300mil wide from mouser)
 2022-10-06 17:33:50 +02:00
mahjongg2
bc66fd4fd3 Delete ZX81plus38_BOM_revision 1.9.ods 2022-10-06 17:31:42 +02:00
mahjongg2
d945fe7a56 Update README.md 2022-09-15 17:26:25 +02:00
mahjongg2
1666b13070 Add files via upload 
version rev1.9 with corrections to cassette I/O
 2022-09-15 17:25:35 +02:00
mahjongg2
bfd71ab0d1 Delete KICAD files ZX81+38 rev1,9.zip 2022-09-15 17:24:28 +02:00
mahjongg2
39f38246d5 Add files via upload 
Corrections for CO2 and CO3 (TIP not RING connected) and for values of C7, C8 and R59
 2022-09-15 17:17:14 +02:00
mahjongg2
419c062db1 Delete ZX81plus38rev1,9 schematic.pdf 2022-09-15 17:15:05 +02:00
mahjongg2
b996cf87ee Add files via upload 
corrections for C7, C8 and R59
 2022-09-15 17:14:40 +02:00
mahjongg2
d7785def9c Delete ZX81plus38_BOM_revision 1.9.ods 2022-09-15 17:13:28 +02:00
mahjongg2
f2a550b6a2 Add files via upload 
Rev 1.9 but with corrected connections for CO2 and CO3 for connection to TIP of TRS connectors
 2022-09-15 17:13:14 +02:00
mahjongg2
d6239db2f7 Delete ZX81+38rev1,9 production files.zip 2022-09-15 17:11:22 +02:00
mahjongg2
05a40e6772 Add files via upload 
corrected values of C7, C8 and R59
 2022-09-15 17:11:02 +02:00
mahjongg2
2821df1cd2 Delete ZX81+38_rev_1.9 component_placement.png 2022-09-15 17:09:20 +02:00
mahjongg2
19c27b1be8 Update README.md 2022-09-15 17:08:18 +02:00
mahjongg2
debae01234 Update README.md 2022-09-10 17:05:23 +02:00
mahjongg2
30532d65e8 Update README.md 2022-09-10 16:48:27 +02:00
mahjongg2
70281e0a77 Add files via upload 
Updated the silk screen overlay, with some lettering below the buttons repaired, for example the lettering "10" was replaced with "0", also the lettering was made bolder.
This is thus revision 1,2
 2022-09-10 16:44:25 +02:00
mahjongg2
754fdedd8f Delete ZX81+38 rev 1.1 keyboard PCB production files.zip 2022-09-10 16:40:49 +02:00
mahjongg2
a9a8358975 Add files via upload 
using these files you can open KiCad and continue working on the keyboard PCB.
 2022-09-08 22:31:08 +02:00
mahjongg2
9a157d2c57 Update README.md 2022-09-08 22:28:23 +02:00
mahjongg2
6a085ac4f1 Add files via upload 
rectangular single sided PCB (copper traces and pads on top side.)
 2022-09-08 22:25:56 +02:00
mahjongg2
6052a1b599 Update README.md 2022-09-08 22:23:12 +02:00
mahjongg2
c4d5cc046b Update README.md 2022-09-08 22:22:44 +02:00
mahjongg2
e080f98489 Update README.md 2022-09-08 22:21:53 +02:00
mahjongg2
9b07e074d6 Add files via upload 
gerber and drill files for a single sided PCB, with copper pads and traces on top.
 2022-09-08 22:11:05 +02:00
mahjongg2
124f862c6b Add files via upload 
Keyboard PCB specifically for the ZX81+38.
This keyboard uses 6x6mm buttons and a keyboard overlay specifically designed for the ZX-81, with round holes for the button stems.
Its a single sided PCB with round corners designed to fit into the indentation of the keyboard in the ZX-81 enclosure.
buttons are soldered to the top side (with the copper traces), so that pressing the button does not damage the copper pads. after soldering the buttons the leads that stick though are cut off near the PCB so the bottom will be flat.
 2022-09-08 22:08:56 +02:00
mahjongg2
f3ef073f27 Update README.md 2022-08-23 18:14:16 +02:00
mahjongg2
e6ad797e61 Update README.md 2022-08-23 18:12:41 +02:00