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Yes—but first decide what “build a Vectrex” means. You can recreate the original-style electronics with the open-hardware SCOPETREX, add Raspberry Pi control to an existing console with PiTrex, or build a modern vector-display/emulator system. These paths differ radically in display hardware, safety, cost, and authenticity.
Choose the right project
| Goal | Best route | Main limitation |
|---|---|---|
| Recreate Vectrex-style electronics | SCOPETREX plus an XY monitor | No monitor included; vintage ICs can be difficult to source |
| Keep an original Vectrex CRT | PiTrex | Requires a working or repairable Vectrex |
| Build a small modern console | Raspberry Pi/emulator and custom enclosure | Does not reproduce CRT behavior |
| Learn game development | VectreC and an emulator | Creates software, not console hardware |
| Buy a ready-made modern product | Vectrex Mini | OLED, no original cartridge slot or accessories |
For a hands-on electronics project, SCOPETREX is the clearest starting point. For a beginner, run an emulator first, then consider a vector-output experiment before working with a CRT.
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Why Vectrex hardware is unusual
The original Vectrex is an integrated monochrome CRT driven as an X-Y vector display. Instead of scanning a rectangular raster like a television, its beam is steered directly to coordinates and draws lines. The system therefore needs analog X and Y deflection, brightness control, and blanking. HDMI, VGA, composite video, an ordinary LCD, or a normal television input cannot accept those signals directly.
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What SCOPETREX gives you—and what it does not
SCOPETREX is a Vectrex-style single-board recreation with configurable X/Y size and polarity, brightness and blanking polarity, cartridge support, and a separate controller board. It supports 68A09/68B09 and 68A09E/68B09E processors, AY-3-8912 or compatible AY-3-8910/YM2149F sound chips, and a regulated 5-volt supply rated for at least 500 mA.
It is not a complete tabletop console. You must provide a fabricated main PCB (documented as 7 × 5 inches), components from the BOM, CPU and I/O chips, sound chip, programmed AT28C64 ROM, cartridge connector, controller, DE-9 hardware, power supply, cables, and an oscilloscope or suitable XY/vector monitor. You also need a case if you want a finished console.
Build SCOPETREX in stages
1. Decide on the display before ordering
Choose an analog oscilloscope in XY mode, a purpose-built XY monitor, or another compatible analog vector display. Do not connect native X/Y outputs to a conventional raster-video input. Scope suitability depends on input range, bandwidth, configuration, and safe connection; “has XY mode” is not a universal compatibility guarantee.
2. Select the exact processor
The project requires 1.5 MHz operation and documents 68A09/68B09 or 68A09E/68B09E parts. Plain 1 MHz 6809/6809E devices are unsuitable. The documentation notes that E-suffix parts can be easier to find and less prone to counterfeiting. Verify suffix, speed rating, package, and seller provenance before buying.
3. Fabricate the boards
Download the current fabrication files and BOM from the repository, then submit the Gerbers to a board manufacturer. PCB fabrication is separate from component purchasing: account for minimum order quantities, finish, shipping, and the documented controller board size of about 5.8 × 2 inches.
4. Source parts carefully
Use the current BOM revision and its Mouser references, while comparing reputable distributors such as Mouser and DigiKey. Socket the 6809, 6522/VIA, and sound ICs. Marketplace “new old stock” listings are not automatically genuine; counterfeit or wrong-speed logic can waste more time than it saves.
5. Install the cartridge connector correctly
The listed connector is Sullins EBC18DRAS (also S3311-ND), with an EDAC alternative. The EDAC part may need right-angle mounting and 18 bodge wires because of mechanical clearance. Confirm orientation against the current assembly notes before soldering; an electrically working board can still be unusable if the cartridge collides with the case or nearby parts.
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6. Set jumpers and trimmers
SCOPETREX identifies jumpers J301, J302, and J303. If polarity is unknown, the documented default is NORM. Set trimmers roughly halfway initially and adjust only after a stable image appears. These controls affect display polarity and geometry, not game software.
7. Program the firmware
The AT28C64 device must contain the intended firmware before operation. A MINIPRO/TL866-style programmer is one possible approach; confirm programmer and adapter support for your exact package. Do not confuse system firmware with a game cartridge. BIOS images differ, and some do not include the built-in Mine Storm game. SCOPETREX does not distribute ROMs, so use legally obtained firmware, homebrew, or lawful dumps.
8. Assemble the controller
The separate controller board uses a thumb joystick and a four-position slide switch selecting which button is triggered by the joystick top-hat press. The DE-9 connector is installed on the bottom side of the PCB. Before enclosing it, check connector orientation, joystick clearance and travel, cable pinout, adjacent-pin shorts, and every button mapping.
Safe first power-up
- Inspect IC orientation, polarized capacitors, diodes, electrolytics, headers, jumpers, connectors, solder bridges, and unfilled pads.
- Measure resistance between 5 V and ground and verify ground continuity across the board.
- Use a regulated 5 V supply rated at least 500 mA; current limiting is sensible during initial tests.
- Verify the programmed AT28C64 contents, socket contact, and orientation.
- Connect only a known-compatible XY device. Begin with conservative gain, brightness, and polarity settings.
- Test joystick axes and each button, then verify audio wiring and an amplifier/speaker stage.
- Start with a known-good, legally obtained test cartridge or ROM and adjust centering and size only after the image is stable.
The project documents the jumpers, trimmers, firmware, controller, and external-XY requirement, but not one universal oscilloscope setup. Scope voltage ranges and calibration controls vary, so follow your instrument manual and never assume a random scope is safe for the output.
Troubleshooting guide
| Symptom | Likely checks |
|---|---|
| Blank display | XY mode selected; display connected; firmware programmed; CPU clock/reset; analog stage; X/Y polarity and blanking; no raster-input connection |
| Dot or tiny image | Increase X/Y gain carefully; inspect trimmers, scope scaling, deflection wiring, and input range |
| Mirrored or inverted image | Polarity jumpers, swapped X/Y channels, scope inversion, or monitor wiring |
| Clipped, oversized, or unstable image | Reduce gain; check trimmers, volts/division, deflection-amplifier limits, brightness, and blanking |
| CPU runs but games fail | Correct 1.5 MHz processor suffix, genuine IC, ROM contents, VIA, cartridge connector, bus contention, and soldering |
| No sound | AY-family part, audio wiring, amplifier/speaker, power, and ground |
| No controller response | DE-9 orientation, cable pinout, shorts, joystick wiring, and top-hat switch selection |
| Cartridge will not fit | Recheck Sullins versus EDAC orientation; the EDAC option may require right-angle mounting and 18 bodge wires |
Raspberry Pi alternatives
PiTrex uses a Raspberry Pi Zero-class setup to control an original Vectrex display and I/O. It preserves the authentic CRT and avoids recreating the original logic board, but it is an adapter or enhancement—not a standalone console. You still need an original Vectrex, its deflection hardware, power circuitry, and a safe, working display.
vecdisp is a different project: Raspberry Pi hardware, MCP4822 12-bit DACs, a custom HAT, and an analog oscilloscope in XY mode. Its buffered-vector library and SDL2 simulator are useful for learning vector graphics without reproducing the 6809 architecture.
For software-only play, Vectrexy provides a C++ emulator. Its documented Windows build is:
git clone --recursive https://github.com/amaiorano/vectrexy.git
cd vectrexy
mkdir build
cd build
cmake ..
cmake --build .Ubuntu also requires CMake, GCC 8 or newer, SDL2-related development libraries, and other packages; check the repository for current distribution-specific names.
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The vectreC toolchain compiles C into Vectrex ROM images for an emulator or real hardware. Its Windows guide uses CMOC, lwtools, and 6809 assembler/linker tools:
. $env:USERPROFILEretro-toolsvectrecvectrec-env.ps1
cmoc --vectrex -I $env:VECTRECstdlib -L $env:VECTRECstdlib -o game.bin game.cThis is a software-development route, not a replacement for building the console.
CRT safety and preservation
A Vectrex CRT assembly contains dangerous high voltage that can remain after power is removed. Flyback transformers, anode connections, deflection coils, and power circuitry can cause serious injury. For a first build, use an external oscilloscope or professionally built XY monitor. Do not transplant a CRT or probe an exposed high-voltage section without relevant training, isolation, discharge procedures, and appropriate test equipment; use one-handed probing practices and keep the assembly enclosed. Refer repair to a qualified technician if in doubt.
Likewise, avoid modifying a valuable original console until your replacement setup works. Use legitimate ROM sources, homebrew releases, or lawful dumps; copyright and preservation rules vary by jurisdiction.
What about the Vectrex Mini?
The official Vectrex Mini FAQ describes a modern OLED product rather than a CRT recreation. It lists 14 built-in games and microSD homebrew support, but no original cartridge slot and no compatibility with the original 3D Imager or Light Pen. Campaign pricing was listed as $173 regular and $265 limited white, excluding tax and shipping, with delivery planned for September 2026; treat those as dated campaign figures, not guaranteed current retail prices.
Bottom line
Build SCOPETREX if you want original-style architecture and are comfortable sourcing vintage chips, programming ROM, fabricating PCBs, and using an analog XY display. Choose PiTrex if you already own a Vectrex and want modern software. Choose vecdisp or an emulator for a safer learning path, and choose the Vectrex Mini only if convenience matters more than CRT authenticity. In every case, make the display decision first—the vector monitor is the defining part of the project.
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