Tynemouth Software

@tynemouthsoftware.co.uk

1426 Followers 243 Following

Making new things for old computers. http://blog.tynemouthsoftware.co.uk/ https://www.tindie.com/stores/tynemouth/ https://www.patreon.com/tynemouthsoftware

PET ROM/RAM board, 5 switch version, at a jaunty angle on my world famous battered desk top.
Commodore PET 2001N-32 / 3032
A ZX Printer (non-functional as many of them are)
10 PRINT Maze program on Lambda 8300 for Minstrel 4th, in ZX81 colours.
ZX80 4K integer BASIC running on Minstrel 4th
Lambda 8300 BASIC running on a Minstrel 4th.
Minstrel 2, a Z80 based 8 bit computer kit which is based on the Sinclair ZX80 with modern parts and a Z80 from the last batch every made.
Lambda 8300 ROM modified to run on the Minstrel 4th. Part 1 link below, Part 2 coming Sunday. http://blog.tynemouthsoftware.co.uk/2026/06/lambda-8300-reverse-engineering.html
10 PRINT "LAMBDA 8300 (plus some graphics)" 20 GOTO 10
The start of the BASIC listing for Perilous Swamp
Some bike pedals
Zevious Seven by David Stephenson - https://zx81keyboardadventure.itch.io/zevious-seven
The new Minstrel 4th V4.52 - looks rather splendid, doesn't it? Available to order now, shipping this week.
Breadboard circuit which is a lot neater than my usual breadboard test circuits.
Obvious click-bait, sorry, but you might be interested to see the design I have come up with.
Colossal Caves for the PET
ZX81 keyboard showing SLOW and FAST keywords.
Acorn Electron 3 stage tape input circuit.
Loading a tape into a Minstrel 4th from a Sony TCM-818 cassette player.
Minstrel 3 with keyboard and Minstrel ZXpand
Minstrel 4th v4.28 with keyboard and sockets for all ICs.
PET 2001 with built in datasette with 3D Monster Maze tape ready to load.
The Minstrel 4th with keyboard in all it's glory
"Doctor Who and Mastering Machine Code on your ZX81 or ZX80" by Tom Baker
Snake Pit on a Commodore 1901 monitor from an S-Video modded VIC20
Genuine MOS 6522 IC showing date code of 0482, 4th week 1982, and a remarked 6502 showing a date code of 1837, presumably intended to be 2018, but using Commodores numbering scheme would be 1937 or 2037.
Red and blue PCBs from JLCPCB arranged in a heart shape.