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JezC
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Re: General Stuff(tm)

Post by JezC »

stephen_usher wrote: Wed Dec 13, 2023 12:25 pm And the rest has arrived.

I think I now have enough 74LS04s to last a lifetime. :-)
:lol:
It may be a reflection on when I was at Uni...but we used to use NAND gates to implement pretty much any other logic function as a stop gap.
It may have been 'inspired' by the VLSI parts of the course we were on... :roll:
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

I've hit a roadblock on the OPD interface.

The ROM image which was mentioned as being available in the article I was using for reference has disappeared. So, if I don't find a source then the project is dead in the water.

Bother!
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

OK. Looks like the ROM image has been lost over the years and no-one has any knowledge, so it's a dead project.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Well, that's my Christmas present to myself ordered, a 3D printer.

This is mostly going to be for use with the model railway, producing buildings etc. but there will be some retro-computing jobs that it'll come in useful for too.

It's a Bambu X1 Carbon with AMX unit (mostly to keep the filament dry and store it too rather than swapping filaments).

I can see this being used a great deal over the next few years.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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exxos
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Re: General Stuff(tm)

Post by exxos »

stephen_usher wrote: Thu Dec 14, 2023 7:46 pm Well, that's my Christmas present to myself ordered, a 3D printer.
Oh no :hide:
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

exxos wrote: Thu Dec 14, 2023 7:56 pm
stephen_usher wrote: Thu Dec 14, 2023 7:46 pm Well, that's my Christmas present to myself ordered, a 3D printer.
Oh no :hide:
Hehe... This one is the first generation of printers where you're not expected to rebuild it every week to keep it running. :-)

Oh, and I'm not Exxos so it probably won't break. ;-)
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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JezC
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Re: General Stuff(tm)

Post by JezC »

stephen_usher wrote: Thu Dec 14, 2023 7:58 pm Oh, and I'm not Exxos so it probably won't break. ;-)
Did you really have to go and jinx yourself like that?
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

JezC wrote: Thu Dec 14, 2023 9:58 pm
stephen_usher wrote: Thu Dec 14, 2023 7:58 pm Oh, and I'm not Exxos so it probably won't break. ;-)
Did you really have to go and jinx yourself like that?
:lol:
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

The OPD floppy interface PCBs have arrived.

IMG_3479.JPG
IMG_3479.JPG (366.93 KiB) Viewed 17866 times

Thanks to the QL community there's a chance that the ROM has been tracked down but this won't be able to be looked into until after Christmas unfortunately.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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rubber_jonnie
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Re: General Stuff(tm)

Post by rubber_jonnie »

stephen_usher wrote: Fri Dec 15, 2023 12:00 pm The OPD floppy interface PCBs have arrived.


IMG_3479.JPG


Thanks to the QL community there's a chance that the ROM has been tracked down but this won't be able to be looked into until after Christmas unfortunately.
Looking good, fingers crossed the ROM will turn up.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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