Modern Retro Hardware List for the BBC Micro Master and Acorn Electron

Following is a list of Modern Hardware projects that have been created for the Acorn 8bit series of computers. They may be commercial or produced by hobbyists; they could be open source or propriety and they might be supplied as a PCB, a kit, fully built or anywhere in between!

The Main List

Product Description Designers ActiveSupplier Connection Compatible Category Built License Org_Type URLs
GoMMC MMC storage system John Kortink EOL ROM Slot ALL * Storage Prebuild Propriety Commercial http://www.zeridajh.org/hardware/gommc/index.htm
GoSDC SDC Storage system John Kortink Y ROM Slot ALL * Storage Prebuild Propriety Commercial http://www.zeridajh.org/hardware/gosdc/index.htm
ReCo6502 Remake of Acorn 6502 CoPro John Kortink EOL Cheese BBC B, Master CoPro Prebuild Propriety Commercial http://www.zeridajh.org/hardware/reco6502/index.htm
ReTuLa Remake of Acorn Tube ULA John Kortink EOL N/A BBC B, Master Tube Prebuild Propriety Commercial http://www.zeridajh.org/hardware/retula/index.htm
TubeSilencer Tube Interface voltage step down (aka silencer, muffler) John Kortink Y Tube BBC B, Master Tube Prebuild Propriety Commercial http://www.zeridajh.org/hardware/tubesilencer/index.htm
ReCo6502Mini Remake of 65C102 Internal CoPro John Kortink Y Internal Tube Master CoPro Prebuild Propriety Commercial http://www.zeridajh.org/hardware/reco6502mini/index.htm
BBC2DVI Allows your Acorn BBC or Electron to connect to modern monitors John Kortink Y RGB All Video Prebuild Propriety Commercial http://www.zeridajh.org/hardware/bbc2dvi/index.htm
Ethernet Module Master series 10/100Mbps ethernet module Sprow Y Internal Econet Master Comms Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/masternet.htm
3.5” Floppy 3.5 Disc drives compatible with the 8271 DFS via pulse modification Sprow ? Disc BBC B, Master Storage Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/floppydrives.htm
Extra Serial Port Add-on board for extra serial port Sprow Y 1Mhz Bus BBC B, Master Comms Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/extraserial.htm
ARM7 Internal CoPro Internal ARM7 coprocessor Sprow ? Internal Tube Master CoPro Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/armcopro.htm
ARM7 External CoPro External ARM7 coprocessor Sprow ? Tube BBC B, Master CoPro Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/armcopro.htm
Speech Kit Reprogrammable speech system Sprow Y Speech Sockets BBC B Audio Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/speechupgrade.htm
BeebIDE Interface BeebIDE harddisc interface Sprow Y 1Mhz Bus BBC B, Master Storage Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/beebide.htm
MiniB The floppy disc sized BBC micro Sprow Y N/A N/A Computer Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/minib.htm
MS DOS FS Rom PC DOS and Windows 95 long filename format Sprow Y ROM Slot BBC B, Master ROM Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/dosfs.htm
8MB RAM Disc High Speed RAM disc Sprow Y 1Mhz Bus BBC B, Master Storage Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/ramdisc.htm
Y2k ROM Fixes Year 2000 problem on Master Sprow Y ROM Slot Master ROM Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/doomsday.htm
ROM Cartridge Spare ROM/RAM cartridges Sprow Y Cartridge Electron, Master Cartridge Prebuild Propriety Commercial http://www.sprow.co.uk/bbc/cartridges.htm
BeebSID Expansion with C64 SID Music Chip MartinB/TomW/Prime Y 1Mhz Bus ALL *E Audio Kit Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14803
Master Ram Board Remake of Slogger MRB Prime ? CPU Socket Electron ShadowRAM Prebuild Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=6729
Electron Plus 3 RAM/ROM Plus 3 RAM/ROM board Prime ? Internal Plus3 Electron Expansion Kit Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=8706
Electron User/UPURS Ports Twin User and One UPURS Port MartinB Sixxdog_uk Cartridge Electron Expansion   Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=8&t=12817&hilit=Electron+user+port
Internal Data Centre USB, CF, IDE, NVRAM with 1MB Flash RAM. Fits internally. RetroClinic N 1Mhz Bus BBC B, Master Storage Prebuild Open Source Commercial http://www.retroclinic.com/acorn/datacentre/datacentre.htm
External Data Centre USB, CF, IDE, NVRAM with 1MB Flash RAM. Fits externally. RetroClinic N 1Mhz Bus ALL *E Storage Prebuild Open Source Commercial http://www.ebay.co.uk/usr/retroclinic
Micro-SPI MMC Micro-SPI MMC Jukebox RetroClinic Y Disc BBC, Master Storage Kit Other Commercial http://www.ebay.co.uk/usr/retroclinic
BBC 1770 Upgrade 1770 Disc Upgrade Kit RetroClinic Y Disc IC Socket BBC B Storage Kit Other Commercial http://www.ebay.co.uk/usr/retroclinic
BBC B+ ROM Switcher B+ MOS switch between 2.0 and 1.2 RetroClinic Y ROM Slot BBC B+ MOS Prebuild Other Commercial http://www.ebay.co.uk/usr/retroclinic
Master ROM Switcher Master MOS Switch - 3.5, 3.2, 2.0 and 1.2 RetroClinic Y ROM Slot Master MOS Prebuild Other Commercial http://www.ebay.co.uk/usr/retroclinic
BeebMaster Econet Clock Econet Clock for running your own Econet network Beebmaster Y Econet BBC B, Master Comms Prebuild Other Not for Profit http://www.beebmaster.co.uk/BeebShop/BMClock.html
BeedMaster Econet Module Remake of Master Intenral Econet Module Beebmaster Y Internal Econet Master Comms Prebuild Other Not for Profit http://www.beebmaster.co.uk/BeebShop/BMEconet.html
VideoNuLA Palettemate Remada and improved. GFX mode that gives 16 colours in mode 2 and 4096 palette in all modes RobC Y Video Socket BBC, Master Video Prebuild Other Not for Profit http://stardot.org.uk/forums/viewtopic.php?p=169107#p169107
Internal 1Mhz connector Adaptor Converts internal SCSI/Modem connect in Master to a stnadard 1Mhz bus connector. simoni ? Internal SCSI/Modem Master Storage Design Only Open Source Not for Profit http://www.domesday86.com/?page_id=409
BeebSCSI Emulate the original BBC Domesday Laser Video Disc system and provides a microSD storage card simoni Y - danielj 1Mhz Bus ALL * E Storage Design Only Open Source Not for Profit http://www.domesday86.com/?page_id=400
BeebSCSI Mini Mini BeebSCSI fitting under Beeb Flynnjs N 1MHz Bus ALL *E Storage PreBuilt TBC TBC https://stardot.org.uk/forums/viewtopic.php?f=8&t=13224
SmallyMouse2 Universal USB to Quadrature mouse converter simoni TheCorfiot User Port ALL * E User Interface Prebuild Open Source Not for Profit http://www.waitingforfriday.com/?p=827
ATI Tube Interface for the Electron Dave Hitchins Y Cartridge   Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=5588
ARA ROM Cartridge Dave Hitchins Y Cartridge Electron, Master Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=5555
ABR Advance Battery Backed Ram Cartridge Dave Hitchins Y Cartridge Electron, Master Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=5672
AP6 Remake of PRES AP6. Internal ROM expansion for Plus1 Dave Hitchins Y Internal Plus1 Electron Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=6280
MGC Mega Games Cartridge. Programmable 200+ Game slots with interative menu Dave Hitchins Y Cartridge Electron Expansion Prebuild Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=1&t=8246
MGC Mk II Mk. II Dave Hitchins In Development Cartridge Electron Expansion Prebuild Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14517
AP5 Remake of PRES AP5. User, Tube and 1Mhz Port Cart Dave Hitchins Y Cartridge Electron Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=8602
Metal Cartridge Cases Pegasus, New AP5 and New AP3/4 Painted Metal case Dave Hitchins Y Cartridge Electron Case Kit Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=13284
Ultimate Electron Upgrade ReMake of Electron ULA with a few extra features Dave Hitchins/Hoglet/myelin In Development ULA Electron Expansion TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=9223
Electron ULA Basic Board ReMake of Electron ULA Lite Budgie/(Hoglet) In Development ULA Electron Expansion TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=19463
Match box copro CoPro reproduced on a matchbox Hoglet/Flynnjs/BigEd Y - flynnjs Tube ALL *E CoPro Kit Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=8&t=8932
Level shifter : 5v DIP to 3v3 DE0-nano Used to allow other Spartan FPGAs to be used with ICE-T Flynnjs Y CPU Socket ALL *E Diagnostics Prebuild Other Not for Profit http://www.xeropage.co.uk/shop/index.php?id_product=16&controller=product
Femto Flash Floppy Mini Gotek using SDCard fitting under Beeb Flynnjs Development Disc ALL *E Storage TBC TBC TBC https://stardot.org.uk/forums/viewtopic.php?f=3&t=17753
BeebOPL Yamaha circa 1980 Midi Chip Expansion lazarusr N 1Mhz Bus ALL *E Audio Kit Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?t=11434
Acorn Master Switcher MOS ROM Switcher for BBC Master ctorwy31/IFEL Y ROM Slot Master MOS Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
Turbo MMC MMC Storage for Acorns ctorwy31/IFEL Y User Port ALL *E Storage Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
ROM/SRAM Cartiridge Acorn BBC Micro Master RAM/ROM cartridge preloaded with eight ROM images ctorwy31/IFEL Y Cartridge Master Cartridge Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
EEPROM Cartridge Acorn BBC Micro Master non-volatile EEPROM ROM cartridge + Free Snapper ROM ctorwy31/IFEL Y Cartridge Master Cartridge Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
BBC Micro 1772 Disc Upgrade 1772 Disc Upgrade PCB + DFS & DDFS ROMS ctorwy31/IFEL Y Disc IC Socket BBC B Storage Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
16 socket BB RAM/ROM EEPROM Board Acorn BBC Micro 16 socket battery backed RAM ROM EEPROM expansion board ctorwy31/IFEL Y Rom Slot BBC B Expansion Prebuild Other Commercial http://www.ebay.co.uk/usr/ctorwy31
32kB RAM & 32kB ROM 32 kB RAM/ROM kit cmorley Y ROM Slot BBC B Expansion Prebuild Other Not for Profit http://www.boobip.com/index.php/hardware/32kb-ram-32kb-rom
64kB EEPROM Module 64kB EEPROM kit cmorley Y ROM Slot BBC B Expansion Prebuild Other Not for Profit http://www.boobip.com/index.php/hardware/64kb-eeprom
OS RAM Module (Extra 30k) Code needs to be OS RAM Mod Aware cmorley Y ROM Slot BBC B Expansion Prebuild Other Not for Profit http://www.boobip.com/hardware/osram/osram-technical
Model B paged ROM breakout boards Access BBCs ROM externally cmorley Last Run ROM Slot BBC B Expansion Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=12753
Master ROM switcher 27C400/800/160/320 emulator/ROM switcher cmorley Dev ROM Slot Master Mos Prebuilt TBC TBC https://stardot.org.uk/forums/viewtopic.php?t=17715
External PiTubeDirect Signal Converter Steps down voltage from 5v to 3.3v Kjell Y Tube ALL *E Tube Prebuild Open Source Not for Profit https://github.com/hoglet67/PiTubeDirect/wiki/Level-Shifter-options
Under PiTubeDirect Signal Converter Steps down voltage from 5v to 3.3v, fits underneath to the external tube connector for use with Pi Zero only. Kjell Y Tube BBC, Master Tube Prebuild Open Source Not for Profit https://github.com/hoglet67/PiTubeDirect/wiki/Level-Shifter-options
Internal PiTubeDirect Signal Converter Steps down voltage from 5v to 3.3v Kjell Y Internal Tube Master Tube Prebuild Open Source Not for Profit https://github.com/hoglet67/PiTubeDirect/wiki/Level-Shifter-options
DIY Master Quad ROM Switch Kit based ROM MOS Switcher Kjell Y ROM Slot Master MOS Kit Open Source Not for Profit http://www.sundby.com/index.php/diy-bbc-master-quad-os-rom-switch/
Dual Digital Joystick Adapters Dual Digital Joystick Adapters, converts analoge port to digital Bryce Y Analogue Port ALL User Interface Prebuild Other Not for Profit http://www.amibay.com/showthread.php?76794-BBC-Electron-Dual-Digital-Joystick-Adapters/page11
RAMagic PC to Beeb File Transfer. RTC, 32KB NVRAM, 16K SRAM MartinB EOL? ROM Slot BBC B, Master Expansion Prebuild Other Not for Profit http://chrisacorns.computinghistory.org.uk/New4Old/MBarr_RAMagic.html
Atom 32K RAM/ROM Provides 32K RAM, sideways Rom and a faster 6502 Clock Speed. Prime Y IC22/44 Sockets Atom Expansion Prebuild Other Not for Profit http://stardot.org.uk/forums/viewtopic.php?t=5056
Atom Floppy Board WD177x Floppy Controller board Prime ?   Atom Storage Prebuild Other Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=44&t=10351
Atom Colour Board   Prime Y IC31 Socket Atom Video Prebuild   Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=44&t=17032
AtoMMC2 SC Card MMC Storage for Acorn Atoms SirMorris     Atom Storage       http://stardot.org.uk/forums/viewtopic.php?f=8&t=2888
Atom 6809 Second Processor 6809 CoPro for the Atom Roland     Atom CoPro       http://stardot.org.uk/forums/viewtopic.php?f=44&t=8518
Atom 2015 Remake Remake of the Atom from ground up Roland N N/A Atom Computer PCB Only Open Source Not for Profit http://diy.acornatom.nl/links.html
Atom 2018 Remake Remake of the Atom from ground up Roland Development N/A Atom Computer PCB Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=44&t=15197
Atomic ESP8266 WiFi WiFi interfacefor the Atom Roland Dev Serial Port Atom Network TBC Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=44&t=8518
Atom Dual Serial Port   Roland Y TBC Atom Serial TBC Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=44&t=8518
Electron Wifi ESP8266 Wifi Cartridge for the Electron Roland Dev Cartridge Electron Network TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=19013&start=60#p276032
Atom GODIL Video Adapter   Hoglet     Atom Video       http://stardot.org.uk/forums/viewtopic.php?f=44&t=7320
Atom Tube Interface Tube interface for CoPro on ATOM Hoglet     Atom Tube       http://stardot.org.uk/forums/viewtopic.php?f=44&t=10090
Atom FPGA   Hoglet (+AlanD)   Tube Atom CoPro       http://stardot.org.uk/forums/viewtopic.php?f=44&t=6313
Acorn RGBHDMI Adaptor RGB to HDMI using a Pi Zero and a small CPLD Hoglet Y RGB ALL Video TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=14430
Pi to 1MHz Interface Raspberry Pi to 1MHz bus interface dp11 N 1MHz ALL *E Expansion PCB Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=15848
Beeb Blitterator Blitter for the Beeb dominicbeesley In Development CPU Socket BBC B, Master Expansion PCB Only TBC Not for Profit http://stardot.org.uk/forums/viewtopic.php?p=187133#p187133
FreeFi-232 v2 Internet access on your Beeb via your serial port danielj Y Serial BBC B, Master Comms TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=15211
Music 4000 STM32 Music 4000 stm32 controller interface doodad danielj In Development User Port ALL *E Audio TBC Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=17146
Beeb SD Card Beeb SD card interfaces SirMorris N User Port ALL *E Storage Prebuild Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=8&t=12689
Electron MicroSD & SRAM Card Electron SD card and SRAM interface Ramtop Y Electron Ext Edge Electron Storage Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=17347
Electron SD Card Electron SD card interfaces Ramtop N Electron Ext Edge Electron Storage Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=16840
Electron MicroSD Card Electron SD card interfaces Ramtop N Electron Ext Edge Electron Storage Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=8&t=16481
SD Interface for Plus 1 Electron SD card interface for Plus 1 Ramtop Dev Cartridge Electron Storage Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=18055
Computer Concept PALROM redesign 128K Software ROMs KenLowe Y ROM Slot BBC, Master Utilities Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=17124
Integra-B Remake Modern build of the Integra-B ROM/RAM board KenLowe Y ROM Slot BBC, Master Expansion Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=8&t=16825
IntegraB V2 Modern improvement of the Integra-B ROM/RAM board KenLowe In Development ROM Slot BBC, Master Expansion Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=19392&p=269720#p269720
User Port Extender / SD Card Reader Interface Allows power to be drawn from user port and still be used KenLowe Y User Port BBC, Master Expansion Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=19788#p275822
New Raspberry Pi to 1MHz bus interface Alternative level shifter using less components KenLowe Y 1MHz BBC, Master Expansion Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=18513
New Tube Level Shifter Alternative level shifter using less components for Tube KenLowe Y Tube BBC, Master Expansion Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=18513&start=60#p258205
New SCSI Host Adaptor Connect old SCSI HDs to the 1MHz port KenLowe Y 1MHz BBC, Master Storage Prebuild TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=18815
Compact Beeb SD Card A Compact option for Beeb MMC Tricky et al. Y User Port ALL *E Storage Prebuild & Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=12869
Atari Joystick Adaptor BitSeeker Joystick Adaptor BitSeeker Y Analogue Port ALL User Interface Kit Other Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=15037
Atari Joystick Adaptor Tricky Atari Joystick Adaptor Tricky Y Analogue Port ALL User Interface Prebuild Other Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=14355
SEGA Joypad Adaptor Tricky SEGA Joypad Adaptor Tricky Y Analogue Port ALL User Interface Prebuild Other Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=17547
Music 5000 Interface MIDI Input Interface for Music 5000 BrokenARM Y User Port ALL *E Audio PreBuild Propriety TBC https://stardot.org.uk/forums/viewtopic.php?f=3&t=16893
E2P Remake Remake of Electron Second Process Cart jms2 Y Cartridge Electron CoPro PCB Only TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=17069
E2P 512K Expansion Daughter board for E2P board giving extra RAM Banks iwasjafa Y E2P RAM Electron RAM PCB Only TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?p=261209
Electron User Port Splitter Electron Riser/Splitter & the User Port walkerworks Y Cartridge Electron User Port PCB Only TBC Not for Profit http://www.bygonebytes.co.uk/Acorn_revival.html#UserPort
Electron Synth Interface A Synth/Sequencer Interface for the Electron walkerworks Y User Port Electron Sound PCB Only TBC Not for Profit http://www.bygonebytes.co.uk/Electron_Sequencer.html#User_Interface
TTL RGB Switch Din Style RGB Switcher for Acorn Machines walkerworks Y RGB ALL Video PCB Only TBC Not for Profit http://www.bygonebytes.co.uk/Acorn_revival.html#RGB%20Switch
32-16 ROM Board 4x16K instead of 2x32k ROM Board for the BBC Master walkerworks Y ROM Slot ALL Expansion PCB Only TBC Not for Profit http://www.bygonebytes.co.uk/Acorn_revival.html#Master

Hardware System Integration Software

Product Description Designers Active Connection Compatible Category Built License Org_Type URLs
PiTube RPi Software + 5v Step down design to turn RPi into a CoPro Hoglet/BigEd Y N/A ALL *E CoPro Custom Open Source Not for Profit https://github.com/hoglet67/PiTubeDirect
UPURS The main software for the UPURS system. Also requires a user port serial cable and the correct USB Serial dongle. MartinB Y User Port All *E Comms Custom Open Source Not for Profit http://www.retro-kit.co.uk/UPURS/
I2C (4 U) Software on a ROM to glue an Acorn to I2C devices MartinB Y User/Analogue Port All *E Comms Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=10966
Flashfloppy (& Gotek) Open Source Firmware that support Acorns Filesystems on Gotek USB Floppy Drive Keir Fraser Y Disc Port All *E Storage Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14994#p201604
Beeblink A file storage system (using a PC) for the BBC Micro Tom Seddon Y User Port BBC B, Master Storage/Comms Custom Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=53&t=15605
Godil Adaptor Godil 50 to 40 pin Adaptor bprosman Y N/A All *E Comms Custom TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=12954&start=30#p221943

DIY - Relevant DIY project not covered by above

This section covers any recent new or remakes of DIY projects that don’t have an equivalent kit/prebuilt option above. There are 1000’s of other DIY projects in Mags, Books and on the Web; But only a handful of really useful ones (that have been reimagined) currently appear here.

Product Description Designers Active Connection Compatible Category Built License Org_Type URLs
2 or more User Ports Need more user ports on your BBC Mike Cook Sweh Rework User Port BBC B Expansion Design Only Open Source Not for Profit http://sweh.spuddy.org/Beeb/2nd_User_Port/
Electron Breakout Cartridge Breakout circuit board in cartridge format for the Electron Paul Boddie N/A Cartridge Electron Prototyping PCB Only Open Source Not for Profit https://oshpark.com/shared_projects/648KdmKd
32k Flash Cart Simple Flash memory cartridge myelin Y Cartridge Electron Storage PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=12730
USB Cart Interface Read Electron Cartridges from a PC/MAC myelin Y USB Electron Cart Reader PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=12964
3-Cart Expansion Cartridge-only Plus 1 replacement, with one extra cartridge slots myelin Y Electron Ext Edge Electron Expansion PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=13089
Elk PiTubeDirect Electron cartridge interface for PiTubeDirect myelin Y Cartridge Electron CoPro PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=11325&start=720#p166961
Microcontroller UPURS cable ATMEGA32U4-based UPURS cable myelin Y User Port ALL *E Comms Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=13299&sid=abc4d45cc022b22e1448e6e08a48da91
Updateable MegaROM for the BBC Master 128 In-system updateable MegaROM for the BBC Master 128 myelin Y ROM Slot Master MOS PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14032
FX2 Tube/Cartridge Adapter An adapter board to make it easy to monitor your Electron, BBC Micro, or BBC Master’s bus using a cheap logic analyzer myelin Y Tube or Cartridge ALL *E Diagnostics PCB Only Open Source Not for Profit http://myelin.nz/acorn/fx2tube
Fast serial port/SD card adapter Fast serial port/SD card adapter for the 1MHz Bus myelin Y 1Mhz Bus ALL *E Comms PCB Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14033
Electron +1ROM & SD Interface Electron Plus 1 ROM emulation and SD interface using an STM32F4 kernelcrash Y Electron Ext Edge Electron Expansion Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=16821
EEPROM Original EEPROM ‘ROM’ design, now incorporated into many projecs in the list. MartinB Various ROM Slot All Expansion Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=7393&hilit=Eeprom
Master UPURS Port Plus 6522 boardinto internal Econet to turn into a user port for UPURS Sydney Y Internal Econet Master Comms Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=7149
Extra Master User Ports Use the Internal SCSI/Modem port for some extra user ports Sydney Y Internal SCSI/Modem Master Comms Design Only Open Source Not for Profit http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=9403
High Density Disk 1772 Mod High Density Disk Mod, versions for Beeb and Electron AP4 MartinB Y Disc IC Socket All Storage Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=1884&start=60#p14648
MMBeeb Much copied and tweaked MMC storage medium for the Beeb (and anything with a user port) Martin Mather Y - Stardot User Port ALL *E Storage Design Only Open Source Not for Profit http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=1919&start=0
MMFS Parallel Tweaked version of MMB software/hardware to run from the Parallel Port Hoglet/Martin Mather Y - Stardot Parallel Port ALL *E Storage Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=17827
Acorn Econet Clock V2 Acorn Econet Clock V2 remake simoni Y Econet ALL *E Comms Design Only Open Source Not for Profit http://www.waitingforfriday.com/?p=19
Acorn Speech PHROM TMS6100 Speech PHROM TMS6100 Remake simoni Y Speech IC Sockets BBC B Audio Design Only Open Source Not for Profit http://www.waitingforfriday.com/?p=30
BBC Master PSU Upgrade 60W Acorn BBC Master power supply upgrade simoni Y N/A Master Power Design Only Open Source Not for Profit http://www.waitingforfriday.com/?p=794
Domesday AIV SCSI Board Recreation of Acorn AIV SCSI Adapter card simoni Y N/A Master Storage Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=15020
Acorn Econet Clock V2 Second version of remake of Acorn Econet Clock simoni Y Econet BBC, Master Comms Design Only Open Source Not for Profit https://www.waitingforfriday.com/?p=19
Acorn Cartridge Breakout Acorn Master and Electron Cartridge Breakout Board simoni Y Cartridge Electron & Master Development Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=15158
1MHz Breakout 1MHz bus breakout board dominicbeesley N 1Mhz Bus BBC B, Master Expansion Part Build TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=16436
HostFS+TCPIP Transfer files between Beeb and PC using ethernet dominicbeesley Dev 1Mhz Bus BBC B, Master Expansion TBC TBC Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=16565
beeb816 65816 upgrade for BBC Micro, including lots of fast RAM, shadow mode, sideways RAM, fast CPU BigEd/Revaldinho Y CPU Socket BBC B Expansion Design Only Open Source Not for Profit https://github.com/BigEd/beeb816/
ICE-T65/Z80/6809 In-Circuit Emulator for the 6502, 65C02, Z80, 6809 and 6809E 8-bit processors (socketed cpu req.) Hoglet Y CPU Socket ALL Diagnostics Design Only Open Source Not for Profit https://github.com/hoglet67/AtomBusMon/wiki
Beeb 1MHz Bus FPGA Adaptor Allows a Xilinx FPGA Spartan 6 XC6SLX9 board to be connected to a Beeb Hoglet Y 1 MHz Bus BBC B, Master Expansion PCB Only Open Source Not for Profit https://github.com/hoglet67/Beeb1MHzBusFpga/wiki
6502 Code Profiling A holistic method of diagnostics using various projects and techniques. Hoglet, BigEd, myelin and cmorley Y N/A ALL Diagnostics Custom Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=14885&p=199582&hilit=Dave+6502+profiler#p199582
Upgrading 64k B+ to 128K Instructions for DIYing a 128K B+ Various Stardot ROM Slot BBC B+ Expansion Design Only Open Source Not for Profit http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=9483
Cheap 32k SRAM mod for Beeb BBC Model B DIY 32K Sideways RAM Retroclinic ? Stardot N/A BBC B Expansion Design Only Open Source Not for Profit http://www.retroclinic.com/acorn/swr/swr.htm
Atom YARRB Yet Another RAM/ROM Board Roland Stardot ROM Slot Atom Expansion Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=44&t=11373
AtomSID v1.8 AtomSID Music Expansion Prime Stardot   Atom Audio Design Only Other Not for Profit https://stardot.org.uk/forums/viewtopic.php?t=17572
AtomSID AtomSID Music Expansion oss003 Stardot   Atom Audio Design Only Other Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=44&t=5053
Master Config Backup Mod Using supercaps instead of batteries Various Stardot N/A Master Repair Design Only Open Source Not for Profit http://stardot.org.uk/forums/viewtopic.php?f=3&t=13353
128K Banked Flash ROM Electron 128K Banked Flash ROM Cartridge davidb Y Cartridge Electron Cartridge Design Only Open Source Not for Profit https://oshpark.com/shared_projects/wV3DlKuX
https://aisler.net/davidb/acorn-electron-128k-banked-flash-rom-cartridge/main-pcb
Mini 128K Banked Flash ROM Mini 128K Banked Flash ROM Cartridge davidb Y Cartridge Electron Cartridge Design Only Open Source Not for Profit https://oshpark.com/shared_projects/D69NmI70
32K Banked Flash ROM Electron 32K Banked Flash ROM Cartridge davidb Y Cartridge Electron Cartridge Design Only Open Source Not for Profit URL TBC
Music 5000/3000 Clone Music 5000/3000 Clone in KiCAD jasonl Y 1 MhZ Bus BBC & Master Audio Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=16895
Music 4000 Interface Music 4000 Keyboard(less) Interface jasonl Y User Port BBC & Master Audio Design Only Open Source Not for Profit https://github.com/jlbeebprojects/music4xxx-AtMega
Music 2000 Clone Music 2000 Midi Interface Clone jasonl Y Music 5000 BBC & Master Audio Design Only Open Source Not for Profit https://github.com/jlbeebprojects/music2xxx
ArduinoFilestore Arduino based Econet Filestore garethdavisbbc Y Econet Port BBC & Master Network Design Only Open Source Not for Profit https://github.com/stardot/ArduinoFilestore
Beeb Bot Clone Clone design of the BBC Micro Bot simoni Y Robot BBC & Master Other Design Only Open Source Not for Profit https://github.com/simoninns/Beeb-Bot/wiki
BBC B+ SRAM Clone BBC B+64K Acorn expansion board pmul128 Y BBC B+ Expansion Slot BBC B+ Expansion Design Only Open Source Not for Profit http://www.bygonebytes.co.uk/BBCBPlus_SRAM.html
Pegasus Disc Layout New Pegasus Disc Interface PCB Layout davejhitchins Y Electron Cartridge Slot Electron Expansion Design Only Open Source Not for Profit https://stardot.org.uk/forums/viewtopic.php?f=3&t=22291

3D Printing - 3D Printing Projects for the Acorn 8bit

This section covers 3d prints that relate to 8 bit Acorn machines. Bear in mind there are other non Acorn based designs that are not listed here, e.g. Amiga Gotek Designs could be used.

Product Description Designer Rafts Support Infill Category Format License URLs
PiTubeDirect Case aerobaticant N/A Yes 10-20% Case STL Creative Commons https://www.thingiverse.com/thing:4131308
Joystick Adapter Case for Monster Joystick adapter Tom_DD N/A N/A TBC Case STL Creative Commons https://www.thingiverse.com/thing:3320298
BBC Micro Joystick Adapter Case (REMIX) Pledg N/A N/A TBC Case STL Creative Commons https://www.thingiverse.com/thing:4917665
3.5” Drive Bay Gotek Floppy Emulator Bracket Tom_DD N/A N/A TBC Drive Bracket STL Creative Commons https://www.thingiverse.com/thing:3387674
Acorn Electron Transformer Box DigitalDunc N/A N/A TBC Case STL Creative Commons https://www.thingiverse.com/thing:3563581
Acorn Electron Edge Connector Cover DigitalDunc No No TBC Cover STL/FCStd Creative Commons https://www.thingiverse.com/thing:3561356
Beeb “Ashtray” cover OldVersion No No 20% Cover STL/FCStd Creative Commons https://www.thingiverse.com/thing:4256116
Electron/Master ROM Cartridge Case daveejhitchins N/A N/A TBC Case STL TBC https://stardot.org.uk/forums/viewtopic.php?f=3&t=18607
BeebSCSI Case Simon Inns No No 15% Case STL/SCAD Creative Commons https://github.com/simoninns/BeebSCSI/tree/master/BeebSCSI_OpenSCAD
BeebSCSI “Vertical” Case Remix Elminster No Optional 15% Case STL Creative Commons https://www.thingiverse.com/thing:4549392
FreeFi232 Case Elminster No No 15% Case STL Creative Commons https://www.thingiverse.com/thing:4540983
BeebSID 2.4 Case Elminster No No 15% Case STL Creative Commons https://www.thingiverse.com/thing:4545234
BBC Micro Coprocessor Tube Hat with Raspberry Pi 3A+ Case Tom_DD No Yes TBC Case STL Creative Commons https://www.thingiverse.com/thing:3290517
Mini BBC Micro Model B RabbitEngineering N/A N/A TBC Model STL Creative Commons https://www.thingiverse.com/thing:2465712
GoTek USB Floppy Emulator External Mini Caddy Tom_DD No Yes 20% Caddy STL Creative Commons https://www.thingiverse.com/thing:2878265
BBC Micro Owl Logo chrislogic N/A N/A TBC Artifact STL Creative Commons https://www.thingiverse.com/thing:839200
BBC Master Cartridge Slot Cover Commisioned by bleister N/A N/A TBC Cover STL TBC https://stardot.org.uk/forums/viewtopic.php?p=318857&sid=05ea84f8a38f5e07ff661a65e66d016d#p318857
BBC Type 1 KeyCaps Piedg No No TBC Keyboard STL Creative Commons https://stardot.org.uk/forums/viewtopic.php?p=322854#p322854 https://www.thingiverse.com/thing:4867915
BBC Micro Speaker Mount Piedg No No TBC Cover STL Creative Commons https://stardot.org.uk/forums/viewtopic.php?p=325885#p325885 https://www.thingiverse.com/thing:4890893
Gotek Drive Top Replacement Piedg No No TBC Case STL Creative Commons https://stardot.org.uk/forums/viewtopic.php?p=326610#p326610 https://www.thingiverse.com/thing:4897514
BBC Micro Turbo SPI Case MrLurch No No 38% Case STL Creative Commons https://www.thingiverse.com/thing:4885518
(BBC) Gotek USB floppy emulator case Magma/Matt No No TBC Case STL GNU V3.0 https://www.prusaprinters.org/prints/71645-gotek-usb-floppy-emulator-case

Resellers

Product Description Designers Active Connection Compatible Category Built License Org_Type URLs
C.J.Micros ReSeller of various new (and old) products N/A N/A N/A N/A N/A Custom Other Commercial http://www.cjemicros.co.uk/
RetroClinic Many spares, refurbs and repair services N/A N/A N/A N/A N/A Custom Other Commercial http://www.retroclinic.com/

6502 SBC Kits

This section covers a few of the popular ‘to buy’ DIY 6502 Single Board Computer Kits that are available. For a complete list of 6502 homebrew projects check out http://6502.org/homebuilt, https://hackaday.io/search?term=6502, & https://hackaday.com/?s=6502

Product Description Designers Active Connection Compatible Category Built License Org_Type URLs
L-Star Plus Software-Defined 6502 Computer Jac Goudsmit Y N/A N/A SBC Kit Open Source Not for Profit https://www.l-star.org/
PE6502 PE6502 single board computer Putnam Electronics Y N/A N/A SBC Kit ?? ?? http://putnamelectronics.com/products.html
RC2014 Simple 8 bit Z80 based modular computer Spencer Owen Y N/A N/A SBC Kit Open Architecture ?? https://rc2014.co.uk//
RC2014 6502 Modules Turn an RC2014 into a 6502 system Ben Chong Y N/A N/A SBC Kit Open ?? Not for Profit https://www.tindie.com/stores/ancientcomputing/

Note the RC2014 requires the 3rd party 6502 modules by Ben Chong (or design your own), otherwise you have a Spectrum and not a BBC Micro!

Connectors, Cables & Spares

Product Description Designers Active Connection Compatible Category Built License Org_Type URLs
Econet Terminator Terminators to terminate an Econet Beebmaster Y Econet Master, BBC *O Comms Prebuild Open Source Not for Profit http://www.beebmaster.co.uk/BeebShop/Default.html
Econet Lead Connection leads for Econet Beebmaster Y Econet Master, BBC *O Comms Prebuild Open Source Not for Profit http://www.beebmaster.co.uk/BeebShop/Default.html
Power and ribbons? Various power and Ribbon Cables Beebmaster Y   BBC, Master Various Prebuild Other Not for Profit http://www.beebmaster.co.uk/BeebShop/Default.html
Serial Cables BBC to PC Serial Crossover Cable Sprow Y RS432 BBC, Master Comms Prebuild Open Source Commercial http://www.sprow.co.uk/bbc/extraserial.htm
Ethernet Cables DIN->RJ45 Connect Sprow Ethernet Module to a Switch/Router Sprow Y Econet Master Comms Prebuild Open Source Commercial http://www.sprow.co.uk/bbc/masternet.htm
Cap Replacement Kit Kit containing the Caps to be replaced in PSU on old Beebs RetroClinic Y N/A BBC Repair Kit Other Commercial http://www.ebay.co.uk/usr/retroclinic
Cap Replacement Kit Kit containing the Caps to be replaced in PSU on old Beebs ctorwy31/IFEL Y N/A BBC Repair Kit Other Commercial http://www.ebay.co.uk/usr/ctorwy31
Battery Packs Replacement Battery Pack for Master RetroClinic Y N/A Master Repair Prebuild Other Commercial http://www.retroclinic.com/acorn/mbattery/mbattery.htm
Manuals Various Manual Reprints for Acrorn’s RetroClinic Y N/A ALL Books Prebuild Other Commercial http://www.retroclinic.com/acorn/manuals/manuals.htm
RGB Scart Lead RGB Scart Lead Video TV Cable retrocomputershack Y RGB ALL Video Prebuild Other Commercial http://www.ebay.co.uk/itm/250877464070?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Cassette Lead Cable to connect Beeb to Cassette retrocomputershack Y Cassette Port ALL Storage Prebuild Other Commercial http://www.ebay.co.uk/itm/250877464070