2 layers426.8 × 140.3 mm
2 layers16 × 114 mm
DG Nova CPU Tester
ForgottenMachines/Data-General-Nova5- Size
- 16 × 114 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 370
- Pads
- 922
- Tracks, vias
- 0, 0
- Routed
- Not yet
- 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 16 × 114 mm with 48 parts on 370 nets.
It is built around the 74HC14. Its parts include 20 connectors, 6 resistors, 6 diodes, 5 capacitors and 2 ICs. It belongs with the RP2040 and AVR (ATmega, ATtiny) boards of this library.
Main components
1Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1N4004 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 3 | C | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C3, C4, C5 |
| 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 | CAP_Disc_Common_-_Entrex_Trapezoid | Forgotten Machines:Disc Capacitor Common Entrex Trapezoid | C1, C2 |
| 2 | Slot_02x50_Odd_Even | Forgotten Machines:DG NOVA Backplane Connector - Backside | J15, J16 |
| 2 | Vipass Ammeter | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP4 |
| 2 | ~ | Forgotten Machines:DG NOVA Backplane Connector - Frontside | J2, J3 |
| 1 | 74HC14 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | ATX-24 | Forgotten Machines:Connector_2x12_P4.2mmx5.5mm (ATX Plug) | J4 |
| 1 | Arduino_Mega2560_Shield | Forgotten Machines:Arduino_Mega2560_Shield | XA1 |
| 1 | CPU Option Inputs | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Horizontal | J11 |
| 1 | CPU Option Outputs | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J17 |
| 1 | Data Channel | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Horizontal | J12 |
| 1 | Data Channel | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Horizontal | J8 |
| 1 | Entrex Backplane S01B53 to S13B53 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | Entrex ~{M CON DATA} | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | Entrex ~{M CON INST} | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 1 | Front Panel Card Edge | Forgotten Machines:DG Nova Front Panel Card Edge | J5 |
| 1 | Front Panel Controls | Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Horizontal | J9 |
| 1 | Front Panel Socket - Backside | Forgotten Machines:DG NOVA Front Pannel Connector - Backside | J1 |
| 1 | Logic 8 CH | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J19 |
| 1 | Logic 8 CH | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Horizontal | J20 |
| 1 | MBO | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Horizontal | J6 |
| 1 | MEM | Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Horizontal | J7 |
| 1 | MEM Control Outputs | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Horizontal | J18 |
| 1 | MountingHole | Button_Switch_Keyboard:nova frontpanel layout | FPIMAGE1 |
| 1 | Pico | Forgotten Machines:RPi_Pico_SMD_TH | U2 |
| 1 | Program Interrupt | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J13 |
| 1 | Programmed I/O | Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Horizontal | J10 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | System Control | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J14 |
| 1 | XK-001 | Forgotten Machines:XK-001_Volt-Amp_Meter - Backside | MES1 |
Questions
How big is the DG Nova CPU Tester PCB?
It measures 16 × 114 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DG Nova CPU Tester use?
48 parts, built around the 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/Reverts/1.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.
More from ForgottenMachines/Data-General-Nova
12- 2 layers426.8 × 131.4 mm
- 2 layers397.5 × 119.4 mm
- 2 layers400.1 × 101.6 mm
- 2 layers426.8 × 131.4 mm
- 2 layers372 × 59.7 mm
- 2 layers426.8 × 131.4 mm
- 2 layers254 × 147.3 mm
- 2 layers379 × 139.7 mm
- 2 layers130 × 90.9 mm
- 4 layers73.9 × 53.5 mm
- 2 layers368.3 × 90.8 mm
Similar boards
- 2 layers89.2 × 82.6 mm
Desktop 50 Pin TopConn
BlueSCSI/BlueSCSI-v2
BlueSCSI v2/Ultra - an open source, open hardware, SCSI emulator using the Pi Pico PR2040 and Pico 2 RP2350
108 parts459GPL-3.0 - 2 layers88.9 × 98.4 mm
Kickstart switcher-12up
keirf/pcb-projects
The old Kickstart switcher documentation is here.
197 parts108CC0-1.0 - 2 layers100 × 100 mm
Explorer
anyshake/explorer
🌏 Detecting seismic wave using 3 geophones and 3-axis accelerometer, pack & send data to AnyShake Observer over RS232 / RS485 serial.
266 parts100 - 2 layers160.1 × 101 mm
PLC-14500
nicolacimmino/PLC-14500
Retro trainer board based on the MC14500 1-bit ICU. The project is OSHW certified and a ready to assemble kit is available on Tindie.
173 parts70GPL-3.0 - 4 layers69 × 74 mm
- 2 layers154.9 × 139.7 mm
68kBoard
transistorfet/computie
A collection of 68k computer projects, including a unix-like operating system written in C that runs on them
78 parts69GPL-3.0 - 2 layers139 × 190 mm
Programmable precision resistor
sbstnh/programmable_precision_resistor
A SCPI programmable precision resistor
253 parts65BSD-3-Clause - 2 layers100 × 100 mm
