General Stuff(tm)

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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

After a clean and a polish the machine almost looks new:

IMG_3205.jpeg

Very mid-80s styling though. (The model was released in 1984.)
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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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mrbombermillzy
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Re: General Stuff(tm)

Post by mrbombermillzy »

:dualthumbup:

I'm all for mid 80's styling.
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Last night the machine broke, or rather it stopped being able to load or unload the tape around the head. The motor and gearbox driving it just spun.

In the end I discovered manually moving a lever which actuates the end of travel switch for the tape wrapping ring would allow it to work.

I thought that it must be some sort of actuator not working properly but I didn't know how the thing works.

I found the service manual and the exploded diagram showed noting driving it other than a tension spring and the outside of the ring, with a dimple into which the little roller at the end of the lever rode, actuating the switch.

Anyway, this evening I started looking into it. I first lubricated the bearings and runners and it made no difference, it still seemed to jam in the notch.

I then tried to remove the gearbox which sits on top of the motor and which eventually drives the ring, but couldn't get it out as it was held in by a run of wires. So, I refit it. As I did so there was a slight twang and the gearbox dropped a couple of millimetres. Suddenly rotating the gears caused the ring to move. So I replaced everything and tried the system and it worked.

Obviously during shipping gears had rattled around and partly disengaged. The extended running of the machine last night whilst recording an old Horizon, "Uranus Encounter", had caused it to fully disengage.
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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mrbombermillzy
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Re: General Stuff(tm)

Post by mrbombermillzy »

Hopefully you can get it working again.

I'm going to gently tiptoe around the name of that show you were recording! :hide: :lol:
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

Oh, the machine's now working again. :-)

Yes, well, better not talk about crater rims in this regard either. Anyway... I can record "The Sky at Night" from November 1985, all about Halley's Comet, now.
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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mrbombermillzy
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Re: General Stuff(tm)

Post by mrbombermillzy »

stephen_usher wrote: 05 Jul 2023 20:45 .... So I replaced everything and tried the system and it worked.
Somehow I managed to miss that line. :roll:

Great news then.
stephen_usher wrote: 06 Jul 2023 16:38 I can record "The Sky at Night" from November 1985, all about Halley's Comet, now.
Was that the show that Patric Moore used to present?
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stephen_usher
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Re: General Stuff(tm)

Post by stephen_usher »

mrbombermillzy wrote: 06 Jul 2023 18:46
stephen_usher wrote: 06 Jul 2023 16:38 I can record "The Sky at Night" from November 1985, all about Halley's Comet, now.
Was that the show that Patric Moore used to present?
Yes, until his death in 2011.
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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mrbombermillzy
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Re: General Stuff(tm)

Post by mrbombermillzy »

Perhaps an interesting interlude, if I may?

I used to live in Selsey around 2009-2010 and remember being told this story by someone who had witnessed it happen:

So, it's an established fact that Brian May (from the band Queen) used to be good friends with Patrick Moore.

Anyway, on this particular day, he had come to Selsey to visit Patrick and either on his way to or back (can't recall) from his visit, saw someone carrying some unwanted items, including a guitar into one of the the charity shops on the high street.

Apparently, Bryan took the guitar, signed it and gave it back to the charity shop. :)

I never did find out what price that guitar ended up being sold for unfortunately. Would have been interesting to know.
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Re: General Stuff(tm)

Post by stephen_usher »

Yesterday I travelled up Leicester way to help the widow of Paul Vernon (https://www.retro-kit.co.uk/), along with another member of the Elite: Dangerous "fan club", to clear some of his collection.

In August there's an Elite Community Meet and one of the displays will be a tribute to Paul and as part of that they want one of his two Hybrid Music Systems set up, so I brought one home.

Now all I have to do if figure out how to put it together and get it working!

IMG_3213.JPG
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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: 10 Jul 2023 09:40 Yesterday I travelled up Leicester way to help the widow of Paul Vernon (https://www.retro-kit.co.uk/), along with another member of the Elite: Dangerous "fan club", to clear some of his collection.

In August there's an Elite Community Meet and one of the displays will be a tribute to Paul and as part of that they want one of his two Hybrid Music Systems set up, so I brought one home.

Now all I have to do if figure out how to put it together and get it working!


IMG_3213.JPG
That is really very cool, I suspect you will be able to figure it out no problem :)

I heard about Paul some time ago, possibly through Stardot, I don't recall, but his website was a great resource and incredibly helpful when I was repairing the A5000.

A sad loss indeed.

I personally have a BBC B donated to me in memory of a work colleague who died about a year ago, it's amazing the connections you make through these machines.
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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