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General Stuff(tm)

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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Indeed.

I could mod the OPD internally to use the normal +5V rail as an alternative "power good" using a resistor.
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 »

PhilC wrote: Sun Feb 04, 2024 2:39 pm The joys of owning retro computers. Broken, then
Fixed, shortly followed by broken again.
I feel ya.
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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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Cracked joints on the PSU main connector, which was actually affecting every pin. The other voltages all had two pins each so they didn't show the effect.
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.
Top
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

The display is now a lot brighter, more stable and slightly taller. I think I'm going to have to open the monitor up again and adjust it now it's getting proper power.
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.
Top
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rubber_jonnie
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Re: General Stuff(tm)

Post by rubber_jonnie »

stephen_usher wrote: Sun Feb 04, 2024 4:04 pm The display is now a lot brighter, more stable and slightly taller. I think I'm going to have to open the monitor up again and adjust it now it's getting proper power.
Good stuff. Glad to hear it wasn't anything too major.

I had a weird PSU issue on my Amstrad ALT-386 and it would sometimes work and sometimes not, and it ended up being the fingers in the internal power plug being cracked. That was a bit of a sod to find.
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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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Adapter plate for the Mean Well RT-85B power supply designed and built and the connector desoldered from the original power supply.

IMG_3561.jpeg
IMG_3561.jpeg (332.04 KiB) Viewed 919 times

The new PSU arrives tomorrow but I'll be out tomorrow evening as it's my birthday and I may be out on Wednesday as well, so later in the week before I can wire things up and test.
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.
Top
User avatar
rubber_jonnie
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Re: General Stuff(tm)

Post by rubber_jonnie »

stephen_usher wrote: Mon Feb 05, 2024 10:28 pm Adapter plate for the Mean Well RT-85B power supply designed and built and the connector desoldered from the original power supply.


IMG_3561.jpeg


The new PSU arrives tomorrow but I'll be out tomorrow evening as it's my birthday and I may be out on Wednesday as well, so later in the week before I can wire things up and test.
Happy birthday for tomorrow :)
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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stephen_usher
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Posts: 7498
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Re: General Stuff(tm)

Post by stephen_usher »

Thanks!
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.
Top
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JezC
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Re: General Stuff(tm)

Post by JezC »

Yes, Happy Birthday (for today now?)
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

JezC wrote: Tue Feb 06, 2024 8:48 am Yes, Happy Birthday (for today now?)
:thumbup:
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.
Top
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