This is just a simple backup of all the files related to the Centurion that I have stored on my HD. The Wiki itself has far more in-depth information about the Centurion and it's individual cards.
DIAG is an open-source printed circuit board by Nakazoto, from the Nakazoto/CenturionComputer repository on GitHub. It is a 2-layer board of 365.1 × 203.2 mm with 150 parts on 475 nets, routed with 6,114 tracks and 467 vias.
It is built around the 74LS384N, 74LS373SC and 74LS245SC, with the AM2907/BRA, 74LS04PC and 74LS157PC among its other parts. Its parts include 36 capacitors, 23 resistors, 5 connectors and 1 crystal.
If you are here reading this readme, most likely you are looking for the Wiki. Click the Wiki link above or the link below to get to there.
https://github.com/Nakazoto/CenturionComputer/wiki
This is just a simple backup of all the files related to the Centurion that I have stored on my HD. The Wiki itself has far more in-depth information about the Centurion and it's individual cards.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 33 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25 +17 |
| 13 | 28C16 | Custom:DIP-24_W15.24mm_cent_socket | UF1, UF2, UF3, UF4, UF5, UF6, UH1, UH2, UH3, UH4, UH5, UH6, UH7 |
| 10 | 4k7 | Custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P11.43mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R13, R14 |
| 7 | DS8835N | Custom:DIP-16_W7.62mm_cent | UA2, UA3, UA4, UA5, UA6, UB3, UB4 |
| 4 | 470R | Custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P11.43mm_Horizontal | R19, R20, R21, R22 |
| 4 | 74LS04 | Custom:DIP-14_W7.62mm_cent | UD1, UD7, UE8, UJ4 |
| 4 | TestPoint | Custom:TestPoint_Hex_D2.0mm_Drill0.8mm | TP1, TP2, TP3, TP4 |
| 3 | 1k | Custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P11.43mm_Horizontal | R11, R12, R18 |
| 3 | 330R | Custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P11.43mm_Horizontal | R9, R10, R23 |
| 3 | 74LS08 | Custom:DIP-14_W7.62mm_cent | UB1, UC4, UC8 |
| 3 | 74LS157 | Custom:DIP-16_W7.62mm_cent | UJ3, UJ7, UJ8 |
| 3 | 74LS37 | Custom:DIP-14_W7.62mm_cent | UB7, UK3, UK4 |
| 3 | 74LS373 | Custom:DIP-20_W7.62mm_cent | UA7, UB5, UK7 |
| 3 | 74LS38 | Custom:DIP-14_W7.62mm_cent | UA1, UAB1, UC6 |
| 3 | 74LS74 | Custom:DIP-14_W7.62mm_cent | UC1, UC7, UD8 |
| 3 | D | Custom:D_DO-35_SOD27_P11.43mm_Horizontal | CR1, CR2, CR3 |
| 3 | R | Custom:R_Axial_DIN0207_L6.3mm_D2.5mm_P11.43mm_Horizontal | R15, R16, R17 |
| 3 | SW_SPDT_312 | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | J1, J2, J3 |
| 2 | 150uF | Capacitor_THT:CP_Axial_L25.0mm_D10.0mm_P30.00mm_Horizontal | C1, C2 |
| 2 | 4k7 | Custom:R_Array_SIP10_cent | RP1, RP2 |
| 2 | 74LS00 | Custom:DIP-14_W7.62mm_cent | UD6, UJ6 |
| 2 | 74LS109 | Custom:DIP-16_W7.62mm_cent | UB2, UK1 |
| 2 | 74LS138 | Custom:DIP-16_W7.62mm_cent | UE3, UE4 |
| 2 | 74LS244 | Custom:DIP-20_W7.62mm_cent | UD3, UD4 |
| 2 | 74LS245 | Custom:DIP-20_W7.62mm_cent | UE6, UE7 |
| 2 | 74LS259 | Custom:DIP-16_W7.62mm_cent | UJ1, UJ2 |
| 2 | TIL311 | Custom:DIP-14_TIL-311_diag | UL5, UL6 |
| 1 | 15MHz HC49-U | Custom:Crystal_HC49-U_Horizontal_P5.08mm | Y1 |
| 1 | 220/330 Divider | Custom:DIP-16_W7.62mm_cent | UK2 |
| 1 | 26 pin IDC horizontal | Custom:IDC-Header_2x13_P2.54mm_Horizontal_TB | P2 |
| 1 | 47uF | Capacitor_THT:CP_Axial_L18.0mm_D6.5mm_P25.00mm_Horizontal | C3 |
| 1 | 6116 | Custom:DIP-24_W15.24mm_cent_socket | UF8 |
| 1 | 74HCT164 | Custom:DIP-14_W7.62mm_cent | UE2 |
| 1 | 74LS10 | Custom:DIP-14_W7.62mm_cent | UJ5 |
| 1 | 74LS155 | Custom:DIP-16_W7.62mm_cent | UH8 |
| 1 | 74LS161 | Custom:DIP-16_W7.62mm_cent | UC2 |
| 1 | 74LS20 | Custom:DIP-14_W7.62mm_cent | UE1 |
| 1 | 74LS670 | Custom:DIP-16_W7.62mm_cent | UC5 |
| 1 | 74LS688 | Custom:DIP-20_W7.62mm_cent | UD2 |
| 1 | 74LS85 | Custom:DIP-16_W7.62mm_cent | UC3 |
| 1 | AM2907 | Custom:DIP-20_W7.62mm_cent | UA8 |
| 1 | Edge Connector | Custom:BUS_EE200 | P1 |
| 1 | LED | LED_THT:LED_D1.8mm_W1.8mm_H2.4mm_Horizontal_O6.35mm_Z1.6mm | CR4 |
| 1 | SW_DIP_x07 | Custom:SW_DIP_SPSTx07_Slide_9.78x19.96mm_W7.62mm_P2.54mm_diag | UL7 |
| 1 | SW_DIP_x08 | Custom:SW_DIP_SPSTx08_Slide_9.78x22.5mm_W8.61mm_P2.54mm_cent | UB6 |
| 1 | SW_Slide_DPDT | Custom:DPDT_diag | UK8 |
| 1 | Z84C00xxP | Custom:DIP-40_W15.24mm_cent_socketchip | UD5 |
The 146 most common of 150 parts.
Nakazoto/CenturionComputer
This is just a simple backup of all the files related to the Centurion that I have stored on my HD. The Wiki itself has far more in-depth information about the Centurion and it's individual cards.
ForgottenMachines/Entrex
The technologies documented here will include all like-kind systems manufactured by Nixdorf, Redifon, ROCC & Mera, all originally designed by Entrex Inc, Burlington, MA USA.
kev-ju/PC-Retro-MTM
Modern KiCad version of the IBM 5150 system board originally created by MTM Scientific, Inc.
RetroStack/TRS-80-Model-I-Expansion-Interface-Rev-D
Hardware Replica of the TRS-80 Model I Expansion Interface - Revision D
It measures 365.1 × 203.2 mm and has 2 copper layers, 1.6 mm thick.
150 parts, built around the 74LS384N, 74LS373SC, 74LS245SC and AM2907/BRA. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Nakazoto/CenturionComputer repository on GitHub, at the commit this page was made from: the board is Computer/Diag Board/Gecho DIAG/DIAG.kicad_pcb and its schematic !Other Gits/Sjsoftware - centurion-cpu6-main/kicad/CPU6.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Nakazoto before reusing the design.
