2 layers426.8 × 131.4 mm
2 layers426.8 × 140.3 mm
DG Nova CPU Tester
ForgottenMachines/Data-General-Nova5- Size
- 426.8 × 140.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 248
- Nets
- 577
- Pads
- 1,598
- Tracks, vias
- 5,352, 497
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Aug 2022
- Updated
- 25 Aug 2026
Overview
DG Nova CPU Tester is an open-source printed circuit board by ForgottenMachines, from the ForgottenMachines/Data-General-Nova repository on GitHub. It is a 2-layer board of 426.8 × 140.3 mm with 248 parts on 577 nets, routed with 5,352 tracks and 497 vias.
It is built around the TEENSY 4.1 and 74HC14. Its parts include 29 diodes, 22 connectors, 15 resistors, 5 capacitors and 4 switches. It belongs with the RP2040, AVR (ATmega, ATtiny) and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
2Parts
248| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | LED | LED_THT:LED_D1.8mm_W3.3mm_H2.4mm | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +6 |
| 9 | R_Network09_US | Resistor_THT:R_Array_SIP10 | RN1, RN3, RN5, RN7, RN8, RN11, RN13, RN14, RN15 |
| 9 | R_US | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R7, R8, R9, R10, R11, R12, R13, R14, R15 |
| 6 | 1N4004 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 6 | LED Bar 10 | Forgotten Machines:LED Bar 10 | BAR1, BAR3, BAR5, BAR7, BAR8, BAR15 |
| 5 | LED Bar 10 | Forgotten Machines:LED Bar 6 | BAR4, BAR6, BAR9, BAR10, BAR16 |
| 3 | 3v3 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | 3v1, 3v3, 5vToBackBoard1 |
| 3 | C | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C3, C4, C5 |
| 3 | R_Network07_US | Resistor_THT:R_Array_SIP8 | RN4, RN6, RN9 |
| 3 | Vipass Ammeter | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP4, JP5 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R5 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R6 |
| 2 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4 |
| 2 | Entrex ~{M CON DATA} | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2, JP2 |
| 2 | Entrex ~{M CON INST} | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3, JP3 |
| 2 | LED Bar 4 | Forgotten Machines:LED Bar 4 | BAR13, BAR14 |
| 2 | R_Network05_US | Resistor_THT:R_Array_SIP6 | RN10, RN16 |
| 2 | Slot_02x50_Odd_Even | Forgotten Machines:DG NOVA Backplane Connector - WireWrap pins - Backside | J15, J16 |
| 2 | ~ | Forgotten Machines:DG NOVA Backplane Connector - WireWrap pins - Frontside | J2, J3 |
| 1 | 74HC14 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | ATX PWR_OK | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | ATX Power Port | Forgotten Machines:Connector_2x12_P4.2mmx5.5mm (ATX Plug) | J4 |
| 1 | Arduino Anolog Pins | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J21 |
| 1 | Arduino Digital Pins | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J22 |
| 1 | Arduino Digital Pins | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J23 |
| 1 | Arduino Mega Reset | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | Arduino_Mega2560_Shield | Forgotten Machines:Arduino_Mega2560_Shield | XA1 |
| 1 | CPU Option Inputs | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J11 |
| 1 | CPU Option Outputs | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J17 |
| 1 | D_Schottky | Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D29 |
| 1 | Data Channel | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J12 |
| 1 | Data Channel | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J8 |
| 1 | Entrex Backplane S01B53 to S13B53 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | Front Panel Card Edge | Forgotten Machines:DG Nova Front Panel Card Edge | J5 |
| 1 | Front Panel Controls | Connector_PinHeader_2.54mm:PinHeader_1x17_P2.54mm_Vertical | J9 |
| 1 | Front Panel Socket - Backside | Forgotten Machines:DG NOVA Front Pannel Connector - WireWrap pins - Backside | Front Panel Socket1 |
| 1 | LED Bar 10 | Forgotten Machines:LED Bar 7 | BAR2 |
| 1 | LED Bar 10 | Forgotten Machines:LED Bar 5 | BAR11 |
| 1 | LED Bar 2 | Forgotten Machines:LED Bar 2 | BAR12 |
| 1 | Logic 8 CH | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J20 |
| 1 | Logic 8 CH | Forgotten Machines:PinHeader_2x05_P2.54mm_Vertical - Backside | J19 |
| 1 | MBO | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J6 |
| 1 | MEM | Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Vertical | J7 |
| 1 | MEM Control Outputs | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J18 |
| 1 | MountingHole | Button_Switch_Keyboard:nova frontpanel layout | FPIMAGE1 |
| 1 | Pico | Forgotten Machines:RPi_Pico_SMD_TH | U2 |
| 1 | Pico Reset | Button_Switch_THT:SW_PUSH_6mm | SW3 |
| 1 | Power Swtich | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW2 |
| 1 | Program Interrupt | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J13 |
| 1 | Programmed I/O | Connector_PinHeader_2.54mm:PinHeader_1x17_P2.54mm_Vertical | J10 |
| 1 | R_Network06_US | Resistor_THT:R_Array_SIP7 | RN12 |
| 1 | R_Network08_US | Resistor_THT:R_Array_SIP9 | RN2 |
| 1 | SW_DIP_x04 | Package_DIP:DIP-8_W7.62mm | SW4 |
| 1 | System Control | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J14 |
| 1 | Teensy4.1 | Forgotten Machines:Teensy41 | Teensy 4.1 |
| 1 | XK-001 | Forgotten Machines:XK-001_Volt-Amp_Meter - Backside | MES1 |
| 1 | ~{CON RQ} Backplane Cap | Forgotten Machines:Disc Capacitor Common Entrex Trapezoid | C2 |
| 1 | ~{PL} Backplane Cap | Forgotten Machines:Disc Capacitor Common Entrex Trapezoid | C1 |
The 126 most common of 248 parts.
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Questions
How big is the DG Nova CPU Tester PCB?
It measures 426.8 × 140.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DG Nova CPU Tester use?
248 parts, built around the TEENSY 4.1 and 74HC14. 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.
Where can I download the DG Nova CPU Tester KiCad files?
From the ForgottenMachines/Data-General-Nova repository on GitHub, at the commit this page was made from: the board is DG Nova CPU Tester/DG Nova CPU Tester.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the DG Nova CPU Tester design in my own project?
Its repository states no licence, so its author keeps all rights: ask ForgottenMachines before reusing the design.