Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 27/09/2026New blog post - A new multi-standard 9 way D joystick interface for the Minstrel 4th and RC2014. blog.tynemouthsoftware.co.uk/2026/09/tyne... This card can be configured as * Boldfield (Jupiter Ace) * ZXpand IO port (ZX81) * Kempston (ZX81, ZX Spectrum) standards Available as kit or assembled. 2204
Tynemouth Software @tynemouthsoftware.co.uk · 27/09/2026New blog post - A new multi-standard 9 way D joystick interface for the Minstrel 4th and RC2014. blog.tynemouthsoftware.co.uk/2026/09/tyne... This card can be configured as * Boldfield (Jupiter Ace) * ZXpand IO port (ZX81) * Kempston (ZX81, ZX Spectrum) standards Available as kit or assembled. 2204
Tynemouth Software @tynemouthsoftware.co.uk · 22/09/2026My experience ordering parts from a certain UK electronics supplier: Go to site, search for part number - not found Try half a dozen search terms until I find the part, with the exact part number I searched for before. Need to spend more to get free shipping, order so parts I don't really need. 1/2 3110
Tynemouth Software @tynemouthsoftware.co.uk · 22/09/2026Happy Birthday to the Jupiter Ace. If you fancy a bit of Forth (or ZX81 BASIC, ZX80 BASIC or Lambda 8300 BASIC) with added RC2014 expansion and maxed out 51K of RAM, check out the Minstrel 4th. www.tindie.com/products/tyn... Message me direct if you want to order from outside the UK. 0244
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 20/09/2026New blog post - Continuing with the ZX81 repairs, this time I turn my attention to the rather tatty case and membrane. blog.tynemouthsoftware.co.uk/2026/09/zx81... 1334
Tynemouth Software @tynemouthsoftware.co.uk · 20/09/2026New blog post - Continuing with the ZX81 repairs, this time I turn my attention to the rather tatty case and membrane. blog.tynemouthsoftware.co.uk/2026/09/zx81... 1334
Tynemouth Software @tynemouthsoftware.co.uk · 18/09/2026Another ZX81 repair in 4 photos. This is the second board, and was covered in more detail in this weeks blog post. blog.tynemouthsoftware.co.uk/2026/09/zx81... Tune in on Sunday to see part 3, covering restoration of the case and membrane. 1142
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 13/09/2026New blog post - The second ZX81 board repair. blog.tynemouthsoftware.co.uk/2026/09/zx81... This time with an internal 16K RAM upgrade, an EPROM ROM replacement and a switching regulator 7805 replacement. 2224
Tynemouth Software @tynemouthsoftware.co.uk · 13/09/2026New blog post - The second ZX81 board repair. blog.tynemouthsoftware.co.uk/2026/09/zx81... This time with an internal 16K RAM upgrade, an EPROM ROM replacement and a switching regulator 7805 replacement. 2224
Tynemouth Software @tynemouthsoftware.co.uk · 09/09/2026A ZX81 repair in 4 photos. Or if you want more details (and another 38 photos), you can check out the full blog post. blog.tynemouthsoftware.co.uk/2026/09/zx81... Part 2 is up on Patreon now if you can't wait (and/or want to support the creation of more of this stuff) www.patreon.com/tynemouthsof... 0113
Reposted by Tynemouth SoftwareL Break Into Program @breakintoprogram.co.uk · 09/09/2026And how it generates the video is also incredibly bonkers and very Sinclair.blog.tynemouthsoftware.co.ukHow the ZX81 Generates VideoNow the Minstrel kits are back in stock, it's time for the second in this series of posts from my Patreon, this one covering the video outpu... 2182
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 06/09/2026New blog post - The first of a series of ZX81 repairs - blog.tynemouthsoftware.co.uk/2026/09/zx81... I couldn't find any of my ZX81s, but I did find a box with three "untested" boards. They can't all be broken, can they? 1183
Tynemouth Software @tynemouthsoftware.co.uk · 06/09/2026New blog post - The first of a series of ZX81 repairs - blog.tynemouthsoftware.co.uk/2026/09/zx81... I couldn't find any of my ZX81s, but I did find a box with three "untested" boards. They can't all be broken, can they? 1183
Tynemouth Software @tynemouthsoftware.co.uk · 01/09/2026Where does the new Minstrel ZXpand II fit, compared to the other? * Minstrel ZXpand - SD, ZXpand Joystick, Kempston Joystick - Needs external ROM + wire * Minstrel ZXpand II - SD, ZXpand Joystick, Kempston Joystick, Overlay ROM * ZXpand / ZXpand+ - SD, ZXpand Joystick, Overlay ROM, RAM 092
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 30/08/2026New blog post - Introducing the new Minstrel ZXpand II - SD card and joystick interface for the Minstrel 2, Minstrel 3 and a ZX81 or TS1000 with an internal RAM upgrade. blog.tynemouthsoftware.co.uk/2026/08/mins... Shipping worldwide, but as per last week, please contact me if you are interested. 2195
Reposted by Tynemouth SoftwareGeorge Beckett @markgbeckett.bsky.social · 30/08/2026This @tynemouthsoftware.co.uk blog blog.tynemouthsoftware.co.uk/2026/08/time... rekindled my interest in maze generation, and I delved into Eller's Algorithm which generates perfect mazes (weblog.jamisbuck.org/2010/1W2/29/...). Here's my Forth implementation - github.com/markgbeckett... 293
Tynemouth Software @tynemouthsoftware.co.uk · 30/08/2026New blog post - Introducing the new Minstrel ZXpand II - SD card and joystick interface for the Minstrel 2, Minstrel 3 and a ZX81 or TS1000 with an internal RAM upgrade. blog.tynemouthsoftware.co.uk/2026/08/mins... Shipping worldwide, but as per last week, please contact me if you are interested. 2195
Reposted by Tynemouth SoftwareSinclair Research @sinclairresearch.bsky.social · 27/08/2026Brilliant repair walkthrough on a Minstrel 4th - the ZX81-compatible clone from Tynemouth Software. Tracks down a video display fault through clever debugging with the Lambda 8300 ROM. Love this kind of detective work! blog.tynemouthsoftware.co.uk/2026/0… 071
Tynemouth Software @tynemouthsoftware.co.uk · 25/08/2026It amazes me that legislation like this keeps getting through and nowhere along the line do any of our alleged representatives consider how this might impact anything other than large corporations. All I can say is, if you want something from a small seller, buy it now, whilst you still can. 181
Reposted by Tynemouth SoftwareChris Garrett @chrisg.com · 24/08/2026"Slow is smooth, smooth is fast" retrogamecoders.com/minstrel-4th... (Borking my Minstrel 4th)retrogamecoders.comHow I Broke My Minstrel 4th Before It Ever BootedI rushed a Minstrel 4th kit build and nearly ruined it. Here is what I would do differently. 1112
Reposted by Tynemouth SoftwareL Break Into Program @breakintoprogram.co.uk · 23/08/2026Finally got around to reading this - an interesting write-up of an almost-working Minstrel and a sound explanation of the diagnostic process involved. 1142
Tynemouth Software @tynemouthsoftware.co.uk · 23/08/2026New blog post. I have quite a few posts written and ready, but all waiting on one things or another, so this is an update on the international shipping situation and the best way to order from me. blog.tynemouthsoftware.co.uk/2026/08/upda... (sorry, if it's a bit ranty and a wee bit political) 1174
Reposted by Tynemouth Software16k should be enough for anyone 🇦🇺 @zx81keyboardadventure.com · 22/08/2026Zevious Seven has now been release on Cassette by Cronosoft On Tape: cronosoft.fwscart.com/product/zevi... Digital Copy: zx81keyboardadventure.itch.io/zevious-seven #ZX81 #retrogaming #indiedev 3389
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 16/08/2026New blog post - repairing a Minstrel 4th build that almost worked first time. blog.tynemouthsoftware.co.uk/2026/08/mins... Why the Lambda 8300 ROM was calling itself Kamaca 8200, why the keys were not showing the right thing when pressed, and why bits of the screen weren't quite in the right place. 2318
Tynemouth Software @tynemouthsoftware.co.uk · 16/08/2026New blog post - repairing a Minstrel 4th build that almost worked first time. blog.tynemouthsoftware.co.uk/2026/08/mins... Why the Lambda 8300 ROM was calling itself Kamaca 8200, why the keys were not showing the right thing when pressed, and why bits of the screen weren't quite in the right place. 2318
Reposted by Tynemouth SoftwareSinclair Research @sinclairresearch.bsky.social · 14/08/2026The divMMC Future is one of the best things to happen to the ZX Spectrum - an SD card interface that just works with every Speccy from Issue 1 to the +3, no jumpers needed. Built in the UK with an injection-moulded case and rainbow stripe. Love it. tfw8b.com/divmmc-future-for-the-zx-spectrum/ 3268
Reposted by Tynemouth SoftwareJason Moore @moorejh.bsky.social · 14/08/2026Love the Penultimate 2 cartridge for my Vic-20. Load games, expand the RAM, & run a dead test. Amazing! #commodore #vic20 #retrocomputing 1174
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 09/08/2026New blog post - second part of the VIC20 Timebomb game. This time fixing some bugs and optimising and tidying up the code blog.tynemouthsoftware.co.uk/2026/08/time... Includes looking at how the maze is generated and displayed, and how I slightly broke that when I rewrote it in 6502 assembler. 0186
Reposted by Tynemouth SoftwareRod Hull @futurewas8bit.bsky.social · 09/08/2026Rod Hull Replays another Bunch of NEW VIC20 Games that you may have missed🕹️🏎️👾🚀🎮 #ItsARealGoodTreat www.youtube.com/watch?v=6Bxj... #RetroGaming #RetroComputing #Commodore #Commodorevic20 #VIC20 #8bit #KoolKidzyoutube.comRod Hull Replays another Bunch of NEW VIC20 Games that you may have missed🕹️🏎️👾🚀🎮 #ItsARealGoodTreatYouTube video by Rod Hull 02310
Tynemouth Software @tynemouthsoftware.co.uk · 09/08/2026New blog post - second part of the VIC20 Timebomb game. This time fixing some bugs and optimising and tidying up the code blog.tynemouthsoftware.co.uk/2026/08/time... Includes looking at how the maze is generated and displayed, and how I slightly broke that when I rewrote it in 6502 assembler. 0186
Tynemouth Software @tynemouthsoftware.co.uk · 06/08/2026"Hey AI, write me a spam email that definitely doesn't look like I have wedged a keyword into a standard template using mail-merge software from 1993." 060
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 02/08/2026New blog post - Speeding Up a Timebomb blog.tynemouthsoftware.co.uk/2026/08/time... Timebomb is a nice little VIC20 BASIC game, but the maze generation at the start was very slow, so I rewrote it in 6502 assembler. This one contains lots of hints and tips for VIC20 BASIC and 6502 assembler coding. 0239
Tynemouth Software @tynemouthsoftware.co.uk · 02/08/2026New blog post - Speeding Up a Timebomb blog.tynemouthsoftware.co.uk/2026/08/time... Timebomb is a nice little VIC20 BASIC game, but the maze generation at the start was very slow, so I rewrote it in 6502 assembler. This one contains lots of hints and tips for VIC20 BASIC and 6502 assembler coding. 0239
Reposted by Tynemouth SoftwareRod Hull @futurewas8bit.bsky.social · 30/07/2026One Hour / 30ish Random Commodore VIC20 Games🕹️ Using Penultimate+2 & Arduino 'new' game every 2mins www.youtube.com/watch?v=QPNw... #RetroGaming #Retrocomputing #8bit #VIC20 #Commodore #commodorevic20 #PenultimateCartridge #VIC20Rulezyoutube.comOne Hour / 30ish Random Commodore VIC20 Games🕹️ Using Penultimate+2 & Arduino 'new' game every 2minsYouTube video by Rod Hull 0116
Reposted by Tynemouth SoftwareChris Garrett @chrisg.com · 30/07/2026Minstrel 4 by @tynemouthsoftware.co.uk progress so far 0182
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 26/07/2026Please come back next week when there is a nice post about writing a VIC 20 game. Or there is 50% of my Patreon if you want to read it now, along with many hundreds of other posts. www.patreon.com/tynemouthsof... I don't normally mention Patreon, but I could really do with the support right now.patreon.comSpeeding Up a Time Bomb [Patreon Preview] | Dave CurranSpeeding Up a Time Bomb [Patreon Preview] by Dave Curran on Patreon. Join Dave Curran's community for exclusive content and updates. 162
Reposted by Tynemouth SoftwareMika Misfit @retrogamermisfit.bsky.social · 27/07/2026I released a new game for the VIC-20 misfit.itch.io/drpsilmisfit.itch.ioDr.Pösilö by Misfit 0109
Tynemouth Software @tynemouthsoftware.co.uk · 26/07/2026New blog post: Changes to international shipping rules mean I now ask you to contact me and tell me what you want (and which options) and your address and I will get you an accurate price. blog.tynemouthsoftware.co.uk/2026/07/game... If you want to know why, read on, otherwise give this one a miss. 2145
Reposted by Tynemouth SoftwareKIM-1 @kim-6502.bsky.social · 24/07/2026Garth Wilson has been designing and documenting 6502 systems at wilsonminesco.com for decades. His site covers everything from basic hardware design to advanced interrupt handling to building a full 6502 workstation. No flash, no frameworks - just deep knowledge served as plain HTML. 0103
Reposted by Tynemouth SoftwareRod Hull @futurewas8bit.bsky.social · 22/07/2026Rod Hull Replays: The game I missed from the last video 'Death Chase' and a Rods Runs a Random Rom🕹️ www.youtube.com/watch?v=mOQ7... #RetroGaming #RetroComputing #Commodore #Commodorevic20 #VIC20 #8bityoutube.comRod Hull Replays: The game I missed from the last video 'Death Chase' and a Rods Runs a Random Rom🕹️YouTube video by Rod Hull 1185
Reposted by Tynemouth SoftwareSmallRun @smallrun.bsky.social · 21/07/2026New on SmallRun — PET ROM/RAM Board by Tynemouth (@tynemouthsoftware.co.uk). → smallrun.net/shop/tynemouth/pet-rom… 051
Tynemouth Software @tynemouthsoftware.co.uk · 21/07/2026Yay, I now can't post to Germany without paying the 20% VAT up front as part of the postage costs. Thank you the world for making international trade increasingly expensive and increasingly complicated at every opportunity. 2101
Reposted by Tynemouth SoftwareGeorge Beckett @markgbeckett.bsky.social · 19/07/2026First version of #Forth I2C interface is complete (for #JupiterAce ROM on @tynemouthsoftware.co.uk #Minstrel4th). Based on Steve Cousin's Z80 m/code I2C demo. It includes example for LM75A temperature sensor. github.com/markgbeckett... 1214
Reposted by Tynemouth SoftwareJason Moore @moorejh.bsky.social · 19/07/2026Love this visualization of the 6502 instruction set. May you JMP for joy as you digest this ;) #retrocomputing #coding 815336
Tynemouth Software @tynemouthsoftware.co.uk · 19/07/2026New blog post - Updates to the PET ROM/RAM board, and the places I sell things. blog.tynemouthsoftware.co.uk/2026/07/pet-... Lots of new options, as well as Tindie, I am starting to list things on Lectronz, SmallRun and SellMyRetro, or contact me and order direct via PayPal or UK bank transfer. 0102
Reposted by Tynemouth SoftwareSmallRun @smallrun.bsky.social · 18/07/2026New shop on SmallRun: Tynemouth (@tynemouthsoftware.co.uk). Making new things for old computers → smallrun.net/shop/tynemouth 0125
Reposted by Tynemouth SoftwareSinclair Research @sinclairresearch.bsky.social · 17/07/2026Tynemouth Software is reverse-engineering the Lambda 8300 ROM - a ZX81 clone that makes you type PRINT in full, squeaks at you with every keypress, and uses inverse video like the Jupiter Ace. Delightfully weird. blog.tynemouthsoftware.co.uk/2026/0… 0121
Reposted by Tynemouth SoftwareRod Hull @futurewas8bit.bsky.social · 16/07/2026Rod Hull Replays an Bunch of NEW VIC20 Games for 2026 🕹️⚡👽👾🚀🎮 2026 might be a good year after all! 🥰 www.youtube.com/watch?v=PugP... #RetroGaming #RetroComputing #Commodore #Commodorevic20 #VIC20 #8bityoutube.comRod Hull Replays an Bunch of NEW VIC20 Games for 2026 🕹️⚡👽👾🚀🎮 2026 might be a good year after all! 🥰YouTube video by Rod Hull 0219
Reposted by Tynemouth SoftwareLectronz: The new maker marketplace. @lectronz.com · 15/07/2026New on Lectronz: PET ROM/RAM Board lectronz.com/products/pet-rom-ram-b… #Retrocomputing #TestEquipmentlectronz.comPET ROM/RAM BoardA ROM and RAM replacement / repair / upgrade board which plugs in the 6502 socket of a Commodore PET 052
Reposted by Tynemouth SoftwareTynemouth Software @tynemouthsoftware.co.uk · 12/07/2026New blog post - the repair of a Commodore PET 3032 board with no video output. blog.tynemouthsoftware.co.uk/2026/07/comm... Also a capacitor that is looking decidedly unwell. 0194