Tastatura-Cobra
About the Tastatura-Cobra PCB
Tastatura-Cobra is an open source PCB design by r0b0t1cu, published on GitHub. It is a 2-layer board measuring 298.5 × 116.8 mm, with 109 components from 66 distinct parts.
Other key parts include the CD4066BE. By type, the board carries 59 relays, 29 diodes, 12 resistors, 4 capacitors, 3 ICs and 1 connector.
It belongs with the keyboards, test & measurement and retro computing designs in this gallery.
From the project
Open-source mechanical keyboard for the Romanian Cobra computer and ZX Spectrum clones. Acesta este un proiect open-source pentru o tastatură mecanică compatibilă cu computerul românesc Cobra.
Acesta este un proiect open-source pentru o tastatură mecanică compatibilă cu computerul românesc Cobra și alte clone ZX Spectrum. Tastatura a fost proiectată pentru a fi ușor de construit, utilizând componente accesibile.
This is an open-source project for a mechanical keyboard compatible with the Romanian Cobra computer and other ZX Spectrum clones. The keyboard is designed to be easy to build, using readily available components.
Main components on the Tastatura-Cobra
Tastatura-Cobra bill of materials (BOM)
109 components, 66 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | CD4066BE | DIP-14_W7.62mm | U1, U2, U3 |
| 1 | CONN_01X08_PIN Conn_01x08_Pin | PinHeader_2x04_P2.54mm_Horizontal | J1 |
| 1 | Conn_KBD | IDC-Header_2x10_P2.54mm_Horizontal | JKBD1 |
| 1 | LEFT | SW_Cherry_MX_1.00u_PCB | K1 |
| 1 | RIGHT | SW_Cherry_MX_1.00u_PCB | K2 |
| 1 | DOWN | SW_Cherry_MX_1.25u_PCB | K3 |
| 1 | UP | SW_Cherry_MX_1.25u_PCB | K4 |
| 1 | EDIT | SW_Cherry_MX_1.25u_PCB | K5 |
| 1 | CAPS LOCK | SW_Cherry_MX_1.25u_PCB | K6 |
| 1 | DELETE | SW_Cherry_MX_1.25u_PCB | K7 |
| 1 | , | SW_Cherry_MX_1.25u_PCB | K9 |
| 1 | . | SW_Cherry_MX_1.00u_PCB | K10 |
| 1 | : | SW_Cherry_MX_1.00u_PCB | K11 |
| 1 | EXTEND MODE | SW_Cherry_MX_1.00u_PCB | K12 |
| 1 | CS | SW_Cherry_MX_2.00u_PCB | K101 |
| 1 | SPACE | SW_Cherry_MX_6.25u_PCB | K103 |
| 1 | CTRL | SW_Cherry_MX_1.00u_PCB | K200 |
| 1 | SS | SW_Cherry_MX_2.00u_PCB | K201 |
| 1 | Z | SW_Cherry_MX_1.00u_PCB | K203 |
| 1 | X | SW_Cherry_MX_1.00u_PCB | K204 |
Show 46 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C | SW_Cherry_MX_1.00u_PCB | K205 |
| 1 | V | SW_Cherry_MX_1.00u_PCB | K206 |
| 1 | B | SW_Cherry_MX_1.00u_PCB | K207 |
| 1 | N | SW_Cherry_MX_1.00u_PCB | K208 |
| 1 | M | SW_Cherry_MX_1.00u_PCB | K209 |
| 1 | F4 | SW_Cherry_MX_1.00u_PCB | K211 |
| 1 | NO SCR | SW_Cherry_MX_1.00u_PCB | K300 |
| 1 | A | SW_Cherry_MX_1.00u_PCB | K302 |
| 1 | S | SW_Cherry_MX_1.00u_PCB | K303 |
| 1 | D | SW_Cherry_MX_1.00u_PCB | K304 |
| 1 | F | SW_Cherry_MX_1.00u_PCB | K305 |
| 1 | G | SW_Cherry_MX_1.00u_PCB | K306 |
| 1 | H | SW_Cherry_MX_1.00u_PCB | K307 |
| 1 | J | SW_Cherry_MX_1.00u_PCB | K308 |
| 1 | K | SW_Cherry_MX_1.00u_PCB | K309 |
| 1 | L | SW_Cherry_MX_1.00u_PCB | K310 |
| 1 | ENTER | SW_Cherry_MX_1.75u_PCB | K311 |
| 1 | F3 | SW_Cherry_MX_1.00u_PCB | K313 |
| 1 | LF | SW_Cherry_MX_1.00u_PCB | K400 |
| 1 | Q | SW_Cherry_MX_1.00u_PCB | K402 |
| 1 | W | SW_Cherry_MX_1.00u_PCB | K403 |
| 1 | E | SW_Cherry_MX_1.00u_PCB | K404 |
| 1 | R | SW_Cherry_MX_1.00u_PCB | K405 |
| 1 | T | SW_Cherry_MX_1.00u_PCB | K406 |
| 1 | Y | SW_Cherry_MX_1.00u_PCB | K407 |
| 1 | U | SW_Cherry_MX_1.00u_PCB | K408 |
| 1 | I | SW_Cherry_MX_1.00u_PCB | K409 |
| 1 | O | SW_Cherry_MX_1.00u_PCB | K410 |
| 1 | P | SW_Cherry_MX_1.00u_PCB | K411 |
| 1 | F2 | SW_Cherry_MX_1.00u_PCB | K412 |
| 1 | ESC | SW_Cherry_MX_1.00u_PCB | K500 |
| 1 | 1 | SW_Cherry_MX_1.00u_PCB | K502 |
| 1 | 2 | SW_Cherry_MX_1.00u_PCB | K503 |
| 1 | 3 | SW_Cherry_MX_1.00u_PCB | K504 |
| 1 | 4 | SW_Cherry_MX_1.00u_PCB | K505 |
| 1 | 5 | SW_Cherry_MX_1.00u_PCB | K506 |
| 1 | 6 | SW_Cherry_MX_1.00u_PCB | K507 |
| 1 | 7 | SW_Cherry_MX_1.00u_PCB | K508 |
| 1 | 8 | SW_Cherry_MX_1.00u_PCB | K509 |
| 1 | 9 | SW_Cherry_MX_1.00u_PCB | K510 |
| 1 | 0 | SW_Cherry_MX_1.00u_PCB | K511 |
| 1 | F1 | SW_Cherry_MX_1.00u_PCB | K513 |
| 29 | BAT42 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8 +21 |
| 3 | 100NF 100nF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C3 |
| 1 | 10UF 10uF | CP_Radial_D5.0mm_P2.50mm | C4 |
| 12 | 100K 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 +4 |
Tastatura-Cobra design files
The KiCad project lives in the r0b0t1cu/Tastatura-Cobra repository on GitHub; these links point at the commit this page was built from.
Tastatura-Cobra: common questions
How big is the Tastatura-Cobra PCB?
The Tastatura-Cobra measures 298.5 × 116.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Tastatura-Cobra?
109 components, from 66 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Tastatura-Cobra design files?
From the r0b0t1cu/Tastatura-Cobra repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Tastatura-Cobra design in my own project?
The repository has no license, so all rights stay with r0b0t1cu. Use it as a reference, and ask the author before reusing the design.
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