Worth Taking a Look At

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Fri Mar 09, 2018 9:05 pm

A model A. Not working but probably a simple fix judging by the description?

https://m.ebay.co.uk/itm/BBC-Micro-Comp ... 0678.m3607

Quite a big gap at the back - does that make it an early-ish one?

Also an instant music setup!

https://m.ebay.co.uk/itm/BBC-Model-B-Co ... 0675.m4236
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

crj
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Re: Worth Taking a Look At

Post by crj » Sat Mar 10, 2018 2:16 am

Lardo Boffin wrote:Quite a big gap at the back - does that make it an early-ish one?
The presence of an aperture for a rear reset button makes it an Issue 1, doesn't it? I'm not sure I'm seeing an auxiliary power connector, so an early PSU as well?

That looks really desirable; which could lead to a pretty ugly bidding war...

steve3000
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Re: Worth Taking a Look At

Post by steve3000 » Sat Mar 10, 2018 6:35 am

crj wrote:
Lardo Boffin wrote:Quite a big gap at the back - does that make it an early-ish one?
The presence of an aperture for a rear reset button makes it an Issue 1, doesn't it? I'm not sure I'm seeing an auxiliary power connector, so an early PSU as well?

That looks really desirable; which could lead to a pretty ugly bidding war...
Issue 2s and early issue 3s also had the big gap and reset button hole (never seen a button actually fitted to one though...). Shame can't see the pcb...

This A doesn't seem to have any ports fitted which is nice to see as most have been upgraded to B spec with at least disc drive, analogue and printer ports added. So that alone will raise interest in sure...

cmorley
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Re: Worth Taking a Look At

Post by cmorley » Sat Mar 10, 2018 7:33 am

steve3000 wrote:Shame can't see the pcb...

This A doesn't seem to have any ports fitted which is nice to see as most have been upgraded to B spec with at least disc drive, analogue and printer ports added. So that alone will raise interest in sure...
Message the seller and ask for more photos with the lid off.

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kieranhj
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Re: Worth Taking a Look At

Post by kieranhj » Sat Mar 10, 2018 8:59 am

What is this?!

https://rover.ebay.com/rover/0/0/0?mpre ... 1992801779

No pictures of the back.
Bitshifters Collective | Retro Code & Demos for BBC Micro & Acorn computers | https://bitshifters.github.io/

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vanekp
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Re: Worth Taking a Look At

Post by vanekp » Sat Mar 10, 2018 9:05 am

Don't know about the simple fix, the smoke part yes maybe but he said both LED's stay on which is not a good sign, as normally even if the capacitors are smoking the BBC starts up without a problem, it could be because of the electrolytic capacitor that also needs to be changed in the PSU.
Good luck and hope you win and are able to get it up and running [-o<
Peter.

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vanekp
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Re: Worth Taking a Look At

Post by vanekp » Sat Mar 10, 2018 9:10 am

kieranhj wrote:What is this?!

https://rover.ebay.com/rover/0/0/0?mpre ... 1992801779

No pictures of the back.
mmm looks like its a BBC keyboard only, as some company's came out with a different box to put your BBC and drives into and then had the keyboard lose from the BBC itself, so I would not pay too much for it as I don't see the BBC in any of the photos only a keyboard.
The monitor is a mono display and the printer a old dot matrix printer.
Peter.

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flaxcottage
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Re: Worth Taking a Look At

Post by flaxcottage » Sat Mar 10, 2018 9:18 am

Just a keyboard in a 'posh' case. The monitor and printer may not be working. The printer is an Epson clone. It is at its money now at £20. :?
- John
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vanekp
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Re: Worth Taking a Look At

Post by vanekp » Sat Mar 10, 2018 9:22 am

O and I see "Collection only from Shipdham."

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kieranhj
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Re: Worth Taking a Look At

Post by kieranhj » Sat Mar 10, 2018 9:27 am

Thanks folks. I had no intention of bidding on it - that’s the ugliest “Beeb” I’ve ever seen. :lol:
Bitshifters Collective | Retro Code & Demos for BBC Micro & Acorn computers | https://bitshifters.github.io/

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1024MAK
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Re: Worth Taking a Look At

Post by 1024MAK » Sat Mar 10, 2018 11:05 am

kieranhj wrote:What is this?!

https://rover.ebay.com/rover/0/0/0?mpre ... 1992801779

No pictures of the back.
It's just a BBC keyboard in that case. So sign of the actual recased Beeb.

Mark

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1024MAK
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Re: Worth Taking a Look At

Post by 1024MAK » Sat Mar 10, 2018 11:07 am

Lardo Boffin wrote:A model A. Not working but probably a simple fix judging by the description?

https://m.ebay.co.uk/itm/BBC-Micro-Comp ... 0678.m3607

Quite a big gap at the back - does that make it an early-ish one?
Darn you, I'll put a bid in and try to find out...

Mark

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Sat Mar 10, 2018 11:12 am

1024MAK wrote:
Lardo Boffin wrote:A model A. Not working but probably a simple fix judging by the description?

https://m.ebay.co.uk/itm/BBC-Micro-Comp ... 0678.m3607

Quite a big gap at the back - does that make it an early-ish one?
Darn you, I'll put a bid in and try to find out...

Mark
:oops:
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

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vanekp
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Re: Worth Taking a Look At

Post by vanekp » Sat Mar 10, 2018 5:24 pm

Electron only no power supply so unknown state https://www.ebay.nl/itm/VINTAGE-COMPUTI ... 1438.l2649

VincentVega
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Re: Worth Taking a Look At

Post by VincentVega » Sat Mar 10, 2018 6:43 pm

Not Acorn/Beeb, but I'm quite tempted by this rather nice looking IBM PS/2, despite having no need for it, nowhere to put it and it being on the other side of the country (400 mile round trip):

https://www.ebay.co.uk/itm/IBM-PS-2-Mod ... SwXOVadb8r

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martinw
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Re: Worth Taking a Look At

Post by martinw » Sat Mar 10, 2018 7:04 pm

Go for it, I love my XT :)
CFA0C951-CD11-4F3C-85E5-B6CE34C831EF.jpeg
The first computer I worked on was a PS/2, the tower one though.

Martin

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Multiwizard
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Re: Worth Taking a Look At

Post by Multiwizard » Sat Mar 10, 2018 7:24 pm

martinw wrote:Go for it, I love my XT :)

Martin
(last year) I sold my XT...


Greetings, Wim... :-)
Attachments
P1200110 IBM 5150 Overview.JPG
IBM.jpg

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martinw
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Re: Worth Taking a Look At

Post by martinw » Sat Mar 10, 2018 8:25 pm

Multiwizard wrote:
martinw wrote:Go for it, I love my XT :)

Martin
(last year) I sold my XT...


Greetings, Wim... :-)
Did it go to a good home ... :cry:

Martin

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Multiwizard
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Re: Worth Taking a Look At

Post by Multiwizard » Sat Mar 10, 2018 8:54 pm

martinw wrote:
Multiwizard wrote:
martinw wrote:Go for it, I love my XT :)

Martin
(last year) I sold my XT...


Greetings, Wim... :-)
Did it go to a good home ... :cry:

Martin
Yes... :D

The trouble is, there are to many nice/beautiful things in this world I wish to collect, but why keeping it all knowing I'm never gonna use it, let some else have it to have much fun/joy... :D


Greetings, Wim... :-)

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Sat Mar 10, 2018 9:06 pm

That can be a hard decision to make!

I bought an unbuilt ZX81 kit a year ago with a view to building it. I still have not done so (unbuilt ones are pretty rare) and am rapidly coming to the conclusion that if I am not going to build it maybe I should sell it on for somebody else to do so.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

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jonb
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Re: Worth Taking a Look At

Post by jonb » Sun Mar 11, 2018 9:13 am

@LB - It takes less than an hour to build a ZX81 from a kit, then the value is gone. Maybe you should frame the case and components and hang them on a wall?

I'm not joking...

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Sun Mar 11, 2018 9:28 am

jonb wrote:@LB - It takes less than an hour to build a ZX81 from a kit, then the value is gone. Maybe you should frame the case and components and hang them on a wall?

I'm not joking...
Thats the argument I keep having with myself. But then it seems a shame if it is never used as a computer.

But then unbuilt kits are so rare...
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

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jonb
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Re: Worth Taking a Look At

Post by jonb » Sun Mar 11, 2018 12:48 pm

Ask yourself why you collect computers. To play or preserve? Then you'll know the answer to the "build it or not" question. If it was me I'd buy a built ZX81 to play with and keep the kit as is.

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1024MAK
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Re: Worth Taking a Look At

Post by 1024MAK » Sun Mar 11, 2018 12:55 pm

jonb wrote:Ask yourself why you collect computers. To play or preserve? Then you'll know the answer to the "build it or not" question. If it was me I'd buy a built ZX81 to play with and keep the kit as is.
He already has a number of ZX81s :D

Mark

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Sun Mar 11, 2018 3:23 pm

1024MAK wrote:
jonb wrote:Ask yourself why you collect computers. To play or preserve? Then you'll know the answer to the "build it or not" question. If it was me I'd buy a built ZX81 to play with and keep the kit as is.
He already has a number of ZX81s :D

Mark
One or two! I decided to build my own anyway. I got an incomplete one from eBay, desoldered it to the PCB and bought all new components (except for a new old stock ULA and the original ROM) and put it all together. It didn’t work but this turned out to be due to the 6.5 MHz resonator. By the time I found this out a house move rudely interrupted proceedings so I have got no furthet yet. Once I find a working one of these (and move house) I can finish off. And then decide what to do with the kit. :?:
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

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DutchAcorn
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Re: Worth Taking a Look At

Post by DutchAcorn » Sun Mar 11, 2018 7:23 pm

I guess different people get fun out of retro computers in different ways. We have the Collectors who enjoy getting rare hardware and keep it for keep’s sake. And we gave the Hobbyists who like to play with old computers. For the Hobbyists the state of the computer is less relevant.

I guess you are not a Collector so an unbuilt ZX81 is really not for you. Why not sell it on to a Collector who values items like that?
Paul

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1024MAK
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Re: Worth Taking a Look At

Post by 1024MAK » Sun Mar 11, 2018 7:35 pm

DutchAcorn wrote:I guess different people get fun out of retro computers in different ways. We have the Collectors who enjoy getting rare hardware and keep it for keep’s sake. And we gave the Hobbyists who like to play with old computers. For the Hobbyists the state of the computer is less relevant.

I guess you are not a Collector so an unbuilt ZX81 is really not for you. Why not sell it on to a Collector who values items like that?
One of the threads over on Sinclair ZX World :wink:

Now, back to the topic...

Mark

steve3000
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Re: Worth Taking a Look At

Post by steve3000 » Thu Mar 15, 2018 10:53 pm

https://www.ebay.co.uk/itm/323144519162

Title says A310 pcb, but it's an A305 as half the memory is socketted and not populated.

Seems to be mssing MEMC, VIDC and (strangely) the 9 pin RGB out socket, so needs some work, but could be interesting for someone.

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Lardo Boffin
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Re: Worth Taking a Look At

Post by Lardo Boffin » Fri Mar 16, 2018 7:28 pm

1024MAK wrote:
Lardo Boffin wrote:A model A. Not working but probably a simple fix judging by the description?

https://m.ebay.co.uk/itm/BBC-Micro-Comp ... 0678.m3607

Quite a big gap at the back - does that make it an early-ish one?
Darn you, I'll put a bid in and try to find out...

Mark
Did you get it?
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet

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1024MAK
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Re: Worth Taking a Look At

Post by 1024MAK » Fri Mar 16, 2018 9:40 pm

Nope, it went over my bid...

Reviewing the pictures and the problems listed by the seller, I can say that it has a SMPSU.

Mark

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