The Curious Engineer

All blogs / ZX Spectrum / Sinclair

Tynemouth Software

blog.tynemouthsoftware.co.uk

Tynemouth Software - Making new things for old computers - Contact Me - Buy Tynemouth Products

ZX Spectrum / SinclairCommodore 8-bitElectronicsRetro computing

’10’15’20’25
Posts
579 from 11 Jul 2010 to 25 Oct 2026
Posting
weekly (52 in the last year)
Kind
company blog
Feed
http://blog.tynemouthsoftware.co.uk/feeds/posts/default

2026 43

  1. Cosmic Snake - Machine Code in REM statements on a VIC20
  2. Loading Programs on the Timex Sinclair TS1500
  3. VIC20 Bunny Blitz
  4. Penultimate Cartridge +3 DCR V7.70
  5. Tynemouth 9 Way D Joystick for Minstrel 4th and RC2014 V2.0
  6. ZX81 Repairs Part 3 - The Case and the Membrane
  7. ZX81 Repairs and Upgrades - Board 2
  8. ZX81 Repairs - Board 1
  9. Minstrel ZXpand II
  10. Update on Ordering
  11. Minstrel 4th Repair
  12. Timebomb Part 2 - Bug Fixes and Code Optimisation
  13. Timebomb Part 1 - Speeding It Up
  14. Game over?
  15. PET ROM/RAM Board Updates
  16. Commodore PET No Video Output Repair - 3032 #1
  17. Testing not-quite-a-ZX-Printer on not-quite-a-ZX81
  18. Lambda 8300 BASIC for Minstrel 4th
  19. Lambda 8300 ROM Reverse Engineering
  20. Improving Tape Loading on Minstrels Part 4 - A New Hope
  21. Improving Tape Loading on Minstrels Part 3 - A New Idea
  22. Improving Tape Loading on Minstrels Part 2 (BBC, Electron and Oric)
  23. Improving Tape Loading on Minstrels Part 1 - ZX80, ZX81 and Jupiter Ace
  24. PET 2001 Repair and Dealing with Bad 6540 and 6550 Chips
  25. Swedish Commodore 64 No Colour Repair
  26. Commodore 4064 Repair - Part 2 - Reverse Engineering the Video Conversion Board
  27. Commodore 4064 Repair - C64 in a PET style case
  28. The TFW8b SX-20 - Portable VIC20
  29. VIC20 S-Video Conversion
  30. Roller Bearing IC Leg Straighteners
  31. Joystick Emulators
  32. PCB Design Hints and Tips - Round the corners, don't cut the corners
  33. TFW8b.com Low Voltage DC Power Supply Tester
  34. PET Serial Interfacing
  35. Acorn A5000 RISC PC Repair(s)
  36. AVR Command Line Hello World in C
  37. Diagnosing a PET Video Fault from One Photograph
  38. 10 Years with my Second Nissan Leaf
  39. 10 Years of the Penultimate Cartridge
  40. A New CRTC for the Minstrel 4th? Part 3
  41. A New CRTC for the Minstrel 4th? Part 2
  42. A New CRTC for the Minstrel 4th? Part 1
  43. Minstrel Expansion Bus Roundup

2025 52

  1. Fitting Perilous Swamp into 8K on a PET 2001
  2. Faster isn't always better - A cautionary tale
  3. I Sold One! (now I have to write the documentation)
  4. Can I Add Games to the Penultimate Cartridge?
  5. A New Serial Card for Minstrel 4th and RC2014
  6. Perilous Swamp ZX81 BASIC to Commodore BASIC Conversion
  7. A New Serial Card for Minstrel 4th and RC2014 - How It Began
  8. Userport LED tester for PET, VIC, C64
  9. CBM 4016 Repair Part 2
  10. CBM 4016 Repair Part 1
  11. Minstrel ROM Cart
  12. Changing SD2IEC Device IDs
  13. The Wonderful 74HC74
  14. Revisiting the Minstrel 4th Enhanced Forth ROM
  15. SD2PET ?Device Not Preset Error
  16. New Microcontroller Features Part 1
  17. Logic analyser replacement clip leads
  18. New SD2IEC and Fastload Combo - Pink Windmill Edition
  19. Minimal ZX81 Compute and Display Code
  20. Playing 60 VIC20 Games in One Hour
  21. PET 2001 6540-010 Character ROM Replacement Update
  22. Measuring ZX81 Speed
  23. 3D Monster Maze Repair
  24. Multi part VIC20 game conversions part 9 million and 12
  25. VIC20 Penultimate +3 DCR Cartridge
  26. VIC20 Turbo Wedge
  27. ZX81 BASIC on the Minstrel 4th [Original Version]
  28. Corn Cob LED Bulb Repairs
  29. A ZX81 game on a ZX81 emulator on a Jupiter Ace emulator on a Windows emulator
  30. Tynemouth USB Keyboard Controllers - A History
  31. Mini PET 40/80 Internal on Tindie
  32. ZX81 BASIC on the Minstrel 4th
  33. Some tips for building (and troubleshooting) a Minstrel kit
  34. Minstrel Input Monitor (Revisited)
  35. Minstrel 4th Returns
  36. Minstrel ZXpand V1.5
  37. Building a 1581 Disk Drive Part 3
  38. Building a 1581 Disk Drive Part 2
  39. Building a 1581 Disk Drive Part 1
  40. PET Composite Video Out - New Kit Version
  41. 48K RAM Pack for Jupiter Ace
  42. Excelerator Plus disk drive repair
  43. Finally Fixing VIC20 Tornado
  44. Penultimate +3 Turbo - VIC20 Fastload
  45. A New Penultimate Cartridge Help Page
  46. Stag P301 EPROM programmer P322 memory upgrade
  47. Mini VIC Revisited Part 5
  48. Mini VIC Revisited Part 4 - Non Overlapping Two Phase Clock
  49. Mini VIC Revisited Part 3
  50. Mini VIC Revisited Part 2
  51. Why does the 1541 disk drive keep spinning?
  52. Mini VIC Revisited Part 1

2024 52

  1. Coming up in 2025
  2. Reading the joystick port from VIC20 BASIC
  3. VIC20 / VIC-1001 Video output
  4. VIC20 / VIC-1001 Repair
  5. Minstrel 3 Repair
  6. Five years of the Minstrel 3
  7. Fixing Autofire in VIC20 Bandits
  8. VIC20 Multipart Game Conversions - Tank War
  9. Minstrel 2 Update
  10. Sony TCM-818 Cassette Recorder Part 2 - Battery Upgrade
  11. A Change of Plan...
  12. Sony TCM-818 Cassette Recorder Part 1 - Overview
  13. Thoughts on "Refurbished" Spectrums
  14. Adding Super Monza Gran Prix 2 to the Penultimate Cartridge
  15. divMMC Troubleshooting
  16. Micro Professor EPROM Programmer Board - Part 1
  17. Jelly Load with Artificial Sweetener
  18. Introducing Jelly Load
  19. Another monitor repair
  20. Salvaging 18650 Cells
  21. Last of the Minstrel and Mini PET kits
  22. Minstrel Input Monitor (includes requirements creep)
  23. ZX Spectrum "Lo Profile" Keyboard
  24. Penultimate Cartridge Repairs
  25. Commodore PET 64K / 128K RAM boards
  26. Using the ZX-IO with the Minstrel Expansion Bus
  27. Annoying LCD Monitor Repair
  28. New Commodore 16 internal 64K RAM upgrade
  29. Repair Parts for Commodore PETs
  30. MOS 6550 RAM Chips - An interesting (if flawed) idea
  31. Building a divIDE Spectrum IDE interface
  32. The actual Kempston joystick interface is not the best Kempston compatible joystick interface
  33. The Micro ZXpand Minstrel
  34. Minstrel Expansion Bus
  35. Minstrel Joystick
  36. Lots of new things for the Minstrel 3
  37. (Not a) VIC 20 Top 20
  38. XGeco Pro / TL866 II Plus (not a Mini Pro) Repair
  39. VIC20 Penultimate +2 Cartridge V7.42
  40. Whatever happened with the Minstrel 3 V3.5.6?
  41. Building lots of Mini PET 40/80s
  42. Mini PET Kit Build Troubleshooting
  43. Why don't you use a bridge rectifier?
  44. Commodore PET 2001 Repair Part 3 - Video Glitch
  45. Commodore PET 2001 Repair Part 2 - IEEE-488 Bus
  46. Commodore PET 2001 Repair - Part 1
  47. $10 Monitor for Minstrel or Mini PET kits
  48. Converting VIC20 Multi-Part Games - Vegas Jackpot
  49. Converting VIC20 Multi-Part Games - Operation Ganymed
  50. Converting VIC20 Multi-Part Games - Outback
  51. Converting VIC20 Multi-Part Games - Rock Man
  52. Converting VIC20 Multi-Part Games - Cops'n'Robbers

2023 51

  1. 25 year old DIY valve amp revisit
  2. Commodore Disk Directory Structure
  3. ZX80 BASIC on a Minstrel 4D - Part 4 - ZX80 Autoload
  4. ZX80 BASIC on a Minstrel 4D - Part 3 - Testing some flicker-free games
  5. ZX80 BASIC on a Minstrel 4D - Part 2 - New tape load and save routines
  6. ZX80 BASIC on a Minstrel 4D - Part 1
  7. December shipping times
  8. Fixing my Jupiter Ace Clone
  9. PET 8032 Repair
  10. Building a Mini PET B Kit
  11. PET IEEE-488 Diagnostics (updated version)
  12. How the ZX81 Generates Video
  13. Testing some new PET games on the Mini PET
  14. How the ZX80 Generates Video
  15. Minstrel and Mini PET Kit Updates
  16. Commodore PET Keyboard Repair / Refurbishment
  17. Damaged Mini PET 40/80D Repair
  18. Inexplicable Autofire Explained (sort of)
  19. ZX Spectrum Issue 2 Future Proofing
  20. VIC20 Key-Quest Multi-Region Game Conversion
  21. Minstrel 3 PCBs, Kits and Built Boards in stock.
  22. Converting yet more multipart games for the VIC20 - Snake and Super Breakout
  23. Tut-Tut for the VIC20
  24. 3D Monster Maze for the VIC20
  25. Converting even more multipart games for the VIC20 - Falcon Fighter and Kwazy Kwaks
  26. Converting more multipart games for the VIC20 - Cataclysm, Battleground and City Crusher
  27. Converting a multipart game for the VIC20 - Galaxia
  28. Diagnosing IEC serial bus faults on the VIC20 and C64
  29. Fun with Crazy Cavey
  30. Penultimate +2 Cartridge
  31. Commodore C64 Repair (with a slight cheat)
  32. Multitech Micro-Professor MPF-I Repair
  33. Building a Minstrel 4D Kit
  34. Viglen Cased BBC Micro Repair
  35. Mini VIC Development Part 4 - Video out tests
  36. Mini VIC Development Part 3 - Clocks and clocks and clocks and clocks.
  37. Mini VIC Development Part 2 - Picking a Microcontroller (including USB Keyboard composite video mod)
  38. Mini VIC Development Part 1 - Mini VIC without a VIC chip?
  39. EPROM Eraser Repair / Upgrade
  40. Spectrum +2 128K Grey Repairs
  41. Minstrel 4D Development Part 6 - CRTC Updates
  42. VIC 20 Colour RAM repair
  43. Minstrel 4D Development Part 5 - Loading From Tape
  44. Minstrel 4D Development Part 4 - It Flips but it won't Flop
  45. Minstrel 4D Development Part 3 - Auto Typing
  46. Minstrel 4D Development Part 2 - A sort of rubbish SPI
  47. Minstrel 4D Development Part 1 - The First Prototype
  48. Odd keyboard issues, or "My Spectrum Won't Stop"
  49. Driving the AY-3-8910 / YM2149 from an 8 bit micro
  50. Some simple Forth programs for the Minstrel 4D
  51. Testing the AY-3-8910 / YM2149 Sound Card for RC2014 (and Minstrel 4D)

2022 47

  1. Digital I/O Card for RC2014 (and Minstrel 4D)
  2. AY-3-8910 / YM2149 Sound Card for RC2014 (and Minstrel 4D)
  3. Minstrel 4D Kits are Shipping Now
  4. Loading a game from a damaged tape
  5. Oric Atmos Repair
  6. VIC 20 Repair - The VIC that did not like Cheese and Onion
  7. Minstrel 4D Quick Start Guide
  8. Minstrel 4D Power Options
  9. Valkyr - One Game, so many changes.
  10. 9 way D Joystick port for RC2014 and Minstrel 4th
  11. AVR Dx Programmer
  12. ZX80 USA
  13. Minstrel 2 Pixel Synchronisation (Part 3)
  14. Minstrel 2 Pixel Synchronisation (Part 2)
  15. Minstrel 2 Pixel Synchronisation (Part 1)
  16. Tut-Tut for the Commodore PET
  17. Building a Minstrel 4D Kit
  18. Testing PET ROM/RAM Boards
  19. Power supplies of the 8 bit generation
  20. Minstrel 4D Overview
  21. Commodore PET Dual Userport Joystick
  22. Commodore plus/4 7 pin power conversion
  23. New VIC20 Cartridge PCBs
  24. Remaking 3D Monster Maze for the Commodore PET
  25. One and a Half Million Views
  26. How the Mini PET works - Debouncing
  27. Custom ROM sets for the Mini PET and PET ROM RAM
  28. Powering Commodore Datasette Drives
  29. Creating Commodore Tapes - Adventures in Modern Recording
  30. Commodore 8250LP Repair
  31. ZX81 External Keyboards and the Minstrel 3
  32. Reverse Engineering a ZX Spectrum Keyboard
  33. PET Sounds
  34. Sinclair 5x8 Keyboards
  35. Happy 2nd Birthday to the Minstrel 4th
  36. Running Cheese and Chive from ROM on a Mini PET
  37. The History of the Mini PET
  38. Amiga 500 USB keyboard and dual joystick and the A500 Mini
  39. The story of the Mini PET 40/80 Advanced Level Kit
  40. Mini PET 40/80 Advanced Level Kit
  41. Commodore PET Datasette Port 2 Problems
  42. The Mini PET 40/80D
  43. (Not a) Jupiter Ace 4000 Prototype
  44. Items for Sale at Sell My Retro (UK Only)
  45. Minstrel Final Edition Kits
  46. The Mini PET 40/80
  47. The Blog Returns

2020 23

  1. Mini PET Perspex Case
  2. RC2014 Mini CP/M Upgrade Kit
  3. Mini PET Deluxe Keyboard
  4. SD2IEC Power Options
  5. Minstrel Updates
  6. Mini PET Update
  7. Mini PET Options
  8. IKA Logic SQ200 Logic Analyser Review
  9. Minstrel 4th Quick Start Guide by George Beckett
  10. The Mini PET Pre-Order Open
  11. Loading Programs on a Minstrel 4th (or Jupiter Ace)
  12. What is a Minstrel?
  13. Minstrel Goes Forth
  14. Commodore 16 PAL to NTSC switchable conversion
  15. Commodore 64 IEEE-488 Cartridges and the SD2PET future
  16. Upgrading the divMMC future firmware
  17. Commodore PET checkerboard and one odd character on the screen
  18. A ZX Spectrum with 80K of RAM?
  19. Commodore PET USB keyboard / Keyboard testers
  20. How banked ROM cartridges work
  21. Marina64 1MB Banked ROM Cartridge for C64
  22. Minstrel building hints and tips
  23. The Minstrel ZXpand

2019 36

  1. A Minstrel 3 based clone of the Lambda 8300 ZX81 clone - Part 2
  2. A Minstrel 3 based clone of the Lambda 8300 ZX81 clone - Part 1
  3. TZXduino master tape creator update
  4. Developing the Minstrel Issue 3
  5. Minstrel Issue 3 - ZX81 Compatible computer kit
  6. Atari 2600 Junior with discrete modulator AV Out Mod
  7. How the ZX80 works
  8. Minstrel Keyboard now with Overlay PCBs
  9. How the VIC20 Works
  10. Commodore SX-64 Repair and 1541 Diagnostics
  11. Commodore 116 Repair
  12. Oric Atmos and Oric-1 Repairs
  13. Amstrad CPC 6128 Repair
  14. The story of the SD2PET Future
  15. BBC Micro B+ 64K and 128K
  16. BBC Micro Issue 3 Model B Repair
  17. BBC Micro Issue 2 Model A Repair
  18. Taking Pictures of Computer Screens
  19. Epson Equity LT Laptop - Part 1
  20. Picicle Build - Handheld RetroPie Console
  21. Update rollup
  22. Acorn Electron Repair - Part 2 Keyboard
  23. Acorn Electron Repair - Part 1 Main Board
  24. ZX81 with early ULA
  25. Atmel AVR Programming Clip Review
  26. SD2PET - pre-order
  27. ZX Spectrum +2 Grey Repair - Working but with screen corruption
  28. DivMMC Programmer Joystick Tester
  29. LHT00SU1 Logic Analyser and Sigrok
  30. Commodore 16 64K Upgrades
  31. VIC20 Dead Test+
  32. USB Arcade Controllers
  33. 8K or 16K ROM Cartridge PCBs for Commodore VIC20
  34. Commodore PET 8032 Repair - Screen repeating in blocks
  35. Commodore PET 8032 Repair - ROMs, Regulators and Rivets
  36. Atari 5200 not powering on repair and AV mod

2018 40

  1. Sega Master System II Composite Video Mod
  2. Commodore 64 Joystick interferes with keyboard
  3. Commodore 128 Keyboard repairs
  4. Commodore 64K 8K Cartridge PCBs
  5. Commodore 16 internal SD2IEC SD card disk drive
  6. PET IEEE-448 port faults
  7. Toshiba HX-10D Japanese MSX
  8. Atari XE System (XEGS) Repair
  9. Atari 5200 DC in and Composite Video Out
  10. Toshiba HX-10 MSX Repair
  11. Atari 2600 NTSC 4 switch composite video conversion
  12. Wellon VP-390 Universal Programmer Repair
  13. Pimoroni Picade build
  14. ZX Spectrum IO Interface
  15. Commodore PET replacement keyboard update
  16. Atari 7800 PAL AV out Composite Video Conversion
  17. Atari 7800 AV out Composite Video Conversion
  18. TFW8b Value - VIC20 MAX RAM Cartridge
  19. Spectrum +2 Repair - locks up after an hour
  20. ZX Spectrum+ mystery repair
  21. ZXBaremulator - Bare metal ZX Spectrum emulator for Raspberry Pi
  22. The Ultimate History of the Penultimate Cartridge
  23. ZX Spectrum, no -5V repair
  24. ZX Spectrum Resurrection
  25. Commodore PET replacement keyboards
  26. Easy Atari 2600 VCS Composite Video Modifications
  27. Binatone TV Master Mk 8 TV Game Composite Video Conversion
  28. Binatone Superstar 'Programmable' TV Game Composite Video Mod
  29. Oric-1 Repair Part 2 - Power and Video
  30. VIC20 Diagnostics Harness and Cartridge Kits
  31. ZX Spectrum "4 Out of Memory" Error Repair
  32. Vectrex Repair
  33. Updating a motherboard BIOS the hard way
  34. Stag P301 EPROM Programmer upgrades
  35. Binatone TV Master 4 plus 2 (MK VI) Composite Video Conversion
  36. Minstrel ZX80 Clone Keyboard
  37. Keyboard options for the ZX Max 48 ZX Spectrum Clone
  38. Commodore PET 8032 Repairs - Killer RAM Chips!
  39. Commodore PET 3032 Repairs - Intermittent Problems
  40. Designing the divMMC Future

2017 44

  1. Commodore VIC20 2pin PAL vs NTSC differences
  2. Custom VIC20 Kernal for Cartridge Testing
  3. Arduino EEPROM Programmer
  4. Blank ZX81 membranes and overlays
  5. ZX Spectrum Issue 2 Colour Adjustment
  6. Radofin tele-sports TV game composite video modification
  7. Get Your T-Shirts Here
  8. Commodore 64 C Internal SD2IEC
  9. ZX81 Internal 16K RAM (reversible version)
  10. Commodore PET 3016 repair
  11. Commodore PET - digital tape counter repair
  12. Commodore 64 Cartridge Cases and PCBs
  13. VIC20 Tape to Disk Conversion
  14. Camputers Lynx 48K Repair
  15. Commodore PET video RAM faults
  16. Z80 CPU, Clock and Reset module for RC2014
  17. Timex Sinclair TS1000 Replacement keyboard membranes
  18. Minstrel ZX80 Clone Troubleshooting
  19. Minstrel ZX80 Clone V2.5 boards
  20. Commodore PET 2001 Repair - Keyboard only some keys responding
  21. ZX Spectrum tape master creator
  22. Commodore PET 2001 Repair - Garbage screen with noise
  23. Commodore Amiga 600 and 1200 USB keyboard kit
  24. RC2014 Modular Z80 System
  25. Z80 M1 signals
  26. Spectrum 128K +2 Grey Repairs
  27. Microace repair
  28. Minstrel ZX80 Clone Issue 2.4 Boards
  29. Reverse PC build
  30. Timex Sinclair TS1500 Repair
  31. BBC Micro Repair
  32. BBC Micro Power Supply Repair
  33. ZX80 Keyboard Overlays
  34. Minstrel ZX80 Clone and the ZXpand
  35. DivMMC Programmer
  36. Commodore 8096 Mainboard Repair
  37. Spanish Spectrum+ 128K Repair
  38. Minstrel ZX80 Clone Issue 2.3 Boards
  39. ZX Spectrum Issue 2 Repair
  40. VIC20 Repair
  41. PET MicroSD
  42. Minstrel ZX80 Clone Issue 2
  43. ZX Spectrum Issue 2 Testing with DivMMC Future
  44. Minstrel ZX80 Clone Video Output Enhancement

2016 42

  1. Minstrel ZX80 Clone
  2. VIC20 Penultimate CartridgeV5.0D
  3. Commodore 1571 Power Supply Conversion
  4. Building a Harlequin ZX Spectrum Clone
  5. TS1000 Multiregion Composite Video Modification
  6. ZX81 Composite Video Modification
  7. VIC20 Penultimate Cartridge Testing
  8. PET Diagnostics update
  9. Spanish Spectrum+ 128K Keypad
  10. Spanish Spectrum+ 128K 'Toastrack'
  11. ICL One Per Desk Microdrive Repair
  12. BT Merlin Tonto (ICL One Per Desk) Repair
  13. Commodore PET ROM RAM boards
  14. Nintendo SNES Mini power supply repair and upgrade
  15. VIC20 PAL to NTSC conversion
  16. PET LCD
  17. VIC20 Penultimate Cartridge User Guide
  18. Commodore 1541 disk drive to 2031 conversion
  19. 6502 Diagnostics Tester
  20. VIC20 Penultimate Cartridge Preorder
  21. VIC20 Internal SD2IEC
  22. PET Diagnostics
  23. VIC20 Penultimate Cartridge Part 4
  24. 6502 Diagnostics Update
  25. VIC 20 Cartridge PCBs
  26. Vintage Computers - an ebay buyers guide
  27. Oric-1 Repair Part 1 - Reset circuitry
  28. Colecovision repair
  29. VIC20 Diagnostics user guide
  30. VIC20 Diagnostics Cartridge and Test Harness Kits
  31. PET Diagnostics - Upcoming Project Preview
  32. Nissan Leaf - Three Years On
  33. VIC20 Diagnostics Kits
  34. Museum of London Exhibit - London in Video Games
  35. 3D Printed Raspberry Pi Cases
  36. Zipstik Joystick Repair
  37. Commodore 64 Pseudo Stereo Dual SID Questions
  38. IBM Model M Keyboard Restoration
  39. VIC20 Penultimate Cartridge Part 3 - No more DIP switches
  40. VIC20 IEEE-488 Cartridge
  41. VIC20 - The Penultimate Cartridge - Part 2 Multi ROM and RAM
  42. VIC20 Diagnostic Cartridge

2015 37

  1. Commodore 64 Pseudo Stereo Dual SID boards
  2. Commodore 64 PLA replacements
  3. VIC20 - The Penultimate Cartridge - Part 1
  4. Commodore PET 2001-8 Mainboard Repair - Part 2
  5. Commodore PET 2001-8 Mainboard Repair - Part 1
  6. MOS 6530 replacements
  7. PET IEEE-488 diagnostic tool
  8. BBC floppy disk transfer
  9. Which PETs support which PET microSD
  10. PET microSD on a VIC20 - VICmicroSD
  11. PET microSD new boards added to range
  12. Commodore PET ROM / RAM replacement boards
  13. Commodore PET 8032 repair - Overclocked to death!
  14. Upcoming Commodore 64 projects
  15. PET microSD V2.0
  16. Commodore PET 2001-8 Repair - Part 1
  17. Exploding Commodore PET Mains Filters
  18. Commodore PET 3032 Mainboard Repair
  19. New PET microSD boards
  20. Commodore PET text adventures
  21. PET microSD user guide
  22. Commodore 8032 Mainboard Repair
  23. PET microSD 8032-SK internal fitting guide
  24. pet microSD - Commodore Pet SD card disk drive
  25. Commodore PET ROM/RAM replacement boards
  26. Commodore 4032 Editor ROM for Business keyboard
  27. Commodore PET 4032 Repair - only 16K reported
  28. PET microSD - Commodore Pet SD card disk drive
  29. Petdisk clone
  30. Arduino based Pet Disk Clone
  31. Atari 2600 Jr Composite Video Modification
  32. Atari 2600 Composite Video Modification
  33. Atari 2600 Black Screen Repair
  34. USB to IEEE-488 for Commodore Disk Drives
  35. Two very different PCs - Custom built vs HP
  36. Commodore 8032 and 4032 GPIB IEEE-4888 Repair
  37. Commodore IEEE-488 Disk Drives

2014 47

  1. Commodore PET 8032 Update
  2. Commodore PET 8032 Repair and Restoration
  3. Commodore 8032 Main Board Repair #2
  4. BBC Micro Issue 3
  5. Commodore 8032 Main Board Repair #1
  6. ZX Spectrum Plus Keyboard Restoration
  7. ZX Spectrum Voltage Regulator Replacement
  8. USB to 1541 Adapter
  9. Commodore 128 Repair - Part 4 Commodore 128 Modes
  10. Commodore 128 Repair - Part 3 Testing
  11. Commodore 128 Repair - Part 2 Keyboard
  12. Commodore 64 Diagnostics Test Harness
  13. Commodore 128 Repair - Part 1 PSU
  14. BBC Micro keyboard repair
  15. Windows 10 - First Impressions
  16. Simple battery powered, LCD clock / calendar
  17. Commodore PET transfer cable
  18. Commodore PET Repair Part 12 - Datasettes
  19. Commodore PET Repair Part 11 - Finished
  20. Commodore PET Repair Part 10 - Monitor Refurbishment
  21. Commodore PET Repair Part 9 - Building a 4032
  22. Commodore PET Repair Part 8 - Keyboard Restoration
  23. Commodore PET Repair Part 7 - DRAM repairs
  24. BT 741 Wallphone conversion
  25. Commodore PET Repair Part 6 - 8032 to 4032 Fat 40 Conversion
  26. Commodore PET Repair Part 5 - Some ROMs a NOP Generator and a Logic Analyser
  27. ZX Spectrum Plus Replacement Keyboard
  28. Commodore PET Repair Part 4 - Video Circuits
  29. Commodore PET Repair Part 3 - Power, Reset, Clock
  30. Commodore PET Repair Part 2 - Power Supply
  31. Commodore PET Repair Part 1 - Main board cleanup
  32. Raspberry Pi Real Time Clock Upgrade
  33. Dymo Label Maker PnP Review
  34. ZX81 internal 16K RAM
  35. Commodore 64 PLA replacement - Mark II
  36. 6502 ROM / RAM Replacement
  37. Raspberry Pi Model B+
  38. Unnecessary Complexity
  39. Improved Arduino Frequency Counter
  40. Plustron TVR5 TV
  41. Nissan Leaf Review - One Year On
  42. Google Chromecast Review
  43. Commodore 264 (C16 and Plus 4) Diagnostic Cartridge
  44. Setting the time
  45. Commodore 64 DRAM fault diagnosis with Thermometer
  46. Raspberry Pi SD Card Socket Repair
  47. Eneloop Batteries and BL700 Charger Review

2013 37

  1. Commodore 64 Diagnostics Cartridge
  2. Commodore 64 PLA Replacement
  3. Rusty VIC20 Restoration
  4. Commodore 64 DRAM Repair
  5. Z80 CP/M Single Board Computer
  6. Keyboard Error, Press F1 - IBM 5160 Part 3
  7. VIC20 Repair Revisited
  8. Z80 Single Board Computer (PET Project Part 3)
  9. Arduino TV Out Terminal Library
  10. Vintage IBM 5160 XT Teardown - Part 2: A Brief History of Disk Drives
  11. Arduino 80x25 Text TV Out Shield and Library
  12. Arduino 80x25 TV Video Output Library I2C Mode
  13. Arduino 80x25 TV Video Output Library V0.2
  14. Commodore PET Project Part 2 - Screen and Keyboard
  15. Vintage IBM 5160 XT Teardown - Part 1
  16. Arduino 80x25 TV Video Output Library
  17. Commodore PET Project Part 1 - History
  18. Acorn Archimedes A3000 Repair
  19. ZX81 Clone Part 2 - ZX80 Clone
  20. ZX81 Clone Part 1
  21. Simple Arduino Frequency Counter
  22. Free Electric Vehicle Charging Point
  23. OUYA Review
  24. Cooler Master Elite 431 Plus Review
  25. Battery Powered LCD Desk Clock
  26. Enough Leafs to fill an autumn
  27. Arduino revival with EPROM programmer
  28. Nissan Leaf Review - Part 4: One Month On
  29. Nissan Leaf Review - Part 3: Living with a Leaf
  30. Nissan Leaf Review - Part 2: First Impressions
  31. Nissan Leaf Review - Part 1: Actually Getting One
  32. How not to wire a plug
  33. Sinclair ZX80 Repair
  34. Commodore VIC20 Repair
  35. ZX81 Acorn Electron Casemod
  36. Tiny LED Clock
  37. LED Clock Part 4 - The Finished Product

2012 20

  1. LED Clock Part 3 - Display Multiplexing
  2. LED Clock Part 2 - Teardown
  3. Simple LED Clock
  4. Raspberry Pi as a Subversion Server
  5. Ikea's record breaking shelves
  6. Doctor Who - Pop Up
  7. SATA Docking Stations Review
  8. Online Learning
  9. Asrock CIR Remote Demystified
  10. Windows 8 Review
  11. Atari 800XL Memory Repair
  12. The fun of Ikea
  13. Do Not Press This Button
  14. Acorn Electron Repair
  15. USBtiny ISP Review
  16. PIC vs Arduino
  17. Samsung LCD TV's - power supply fault
  18. Universal Laptop Power Supply Further Update
  19. Universal Laptop Power Supply Update
  20. Universal Laptop Power Supply Teardown

2011 2

  1. Hotswap IDE bays
  2. Home Theatre PC

2010 6

  1. Hard drive recovery
  2. Laptops and water don't mix
  3. eMac repair
  4. Repairs
  5. Data recovery
  6. Welcome!