Compukit UK101

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jimmydeath
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Re: Compukit UK101

Postby jimmydeath » Sun Jan 12, 2014 8:24 pm

Hello Ian

The full version of the scan of both sides of my PCB has now been uploaded to your FTP site. Please unRAR and check that they are OK so that I can delete the RAR files off my PC

Regards

James

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erazmus
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Re: Compukit UK101

Postby erazmus » Sun Jan 12, 2014 8:57 pm

jimmydeath wrote:The full version of the scan of both sides of my PCB has now been uploaded to your FTP site. Please unRAR and check that they are OK so that I can delete the RAR files off my PC

James,

Thanks! The scans arrived, and successfully UNRARed. Unbelievable quality. I applaud you for the foresight in capturing this piece of history during your rebuild project.

A close examination really shows up the imperfections in the trace layouts - the hand-taped nature of the original is obvious with a little bit of magnification.

I will post a link here once I've got the files up on the site and ready for anyone to download. Is there a specific citation you'd like me to put there to recognize your contribution?

Ian

jimmydeath
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Re: Compukit UK101

Postby jimmydeath » Sun Jan 12, 2014 9:10 pm

Hi Ian

err, a citation not sure about that. Just a simple 'scans by jimmydeath' or similar will be fine

Regards

James

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erazmus
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Re: Compukit UK101

Postby erazmus » Mon Jan 13, 2014 4:37 am

Thanks to jimmydeath's hard work, the *very* high resolution scans of the UK101 PCB are now up at my site for anyone to grab. They can be found at this page:

http://www.compukit.org/Motherboard_Versions

Now, all we need are scans of the other two versions of the board :)

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erazmus
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Re: Compukit UK101

Postby erazmus » Mon Jan 13, 2014 11:10 pm

Does anyone have their Compukit board handy? I would really like to know the exact dimensions of the PCB.

JonTr7
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Re: Compukit UK101

Postby JonTr7 » Mon Jan 13, 2014 11:37 pm

erazmus wrote:Does anyone have their Compukit board handy? I would really like to know the exact dimensions of the PCB.


296mm X 366mm

John

jimmydeath
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Re: Compukit UK101

Postby jimmydeath » Tue Jan 14, 2014 12:30 am

When I printed out the scans I made of the PCB on an A3 printer it came out as an exact one to one of the board itself. Sadly though you couldn't then solder the components on to it....

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KarateEd
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Re: Compukit UK101

Postby KarateEd » Tue Jan 14, 2014 2:53 am

Hey JD,

That would make it a floppy board......

Ed......:-)

jimmydeath
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Re: Compukit UK101

Postby jimmydeath » Tue Jan 14, 2014 5:56 pm

Ed.

Don't tell me, you're here all week...

:)

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Re: Compukit UK101

Postby jimmydeath » Wed Jan 15, 2014 11:39 pm

Just wanted to say a big thanks to John (JonTr7) for sending me a set of replacement BASIC PROMs which have allowed me to remove the carbunkle of a 2764 EPROM and return my UK101 to its original configuration.

Regards

James
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flaxcottage
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Re: Compukit UK101

Postby flaxcottage » Thu Jan 16, 2014 7:37 am

Nice. =D>
- John

Currently running Level 4 Econet with BBC B, BBC B+ 128K, Master 128K, 4Mb A3000, 4Mb A3020, 4Mb A4000, 4Mb A5000 dual FDD; UK101; HP41CX setup; Psion 3a, 3mx and 5mx; Z88; TI-58c, TI-59 and printer, HP-16C programmer's calculator

JonTr7
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Re: Compukit UK101

Postby JonTr7 » Thu Jan 16, 2014 10:45 am

Very happy I was able help you put the finishing touches to all the hard work you've done restoring this beauty.

John

IanB
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Re: Compukit UK101

Postby IanB » Sat Jan 25, 2014 12:39 am

I must pay more attention to the off topic forum, I see this thread has been running for a long time!

Like many here, I built a UK101 from a kit back in late 1980. It was bought from a stand at the "Breadboard" exhibition in the Royal Horticultural Halls (anyone remember those shows?). It was my third computer, following on from an MK14 and a ZX80.

I did many mods and built many addons over the next few years before graduating to a BBC micro. Like PeteB I interfaced a Creed 7B teleprinter and modified the monitor ROM to include the drivers so I could print anything that was sent to the screen (having first built an eprom programmer!)

I still have it and even have an original copy of "Galactic Hitchhiker" which was my favourite game as I was a serious HHGTTG fan back then.

I also have a few other games:

8K Super Invaders
Sea Battle
Supertrek
New York Taxi
Hectic
Assault Course
Hound
Dogems
Connect Four
Piranha
Lunar Lander
Quest for the Golden Crown
Adventure 10: Caverns of Doom
Ski Run
Life

Any need for any of those?

Like the atom, the UK101 had screen noise when the screen was updated and I designed a mod to fix that so I had a UK101 with noise free graphics and no speed penalty. The mod didn't require any extra ICs, it simply rewired the screen circuitry slightly (it actually used one less IC as the screen blanking circuit got disabled as part of the mod)
The modification instructions eventually got published in "TJ's workshop" in PC World magazine for which I was paid £10 I think!

The mod ran the screen memory at 2Mhz instead of 1Mhz so that both the CPU and the screen could access at any time without conflicting but the 2114 RAMs had to be higher speed than required for 1Mhz access so it might not work reliably on early UK101s unless their screen RAM was upgraded.

If anyone's interested, I can dig out the mod instructions and post them.

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erazmus
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Re: Compukit UK101

Postby erazmus » Sat Jan 25, 2014 1:29 am

IanB wrote:8K Super Invaders
Sea Battle
Supertrek
New York Taxi
Hectic
Assault Course
Hound
Dogems
Connect Four
Piranha
Lunar Lander
Quest for the Golden Crown
Adventure 10: Caverns of Doom
Ski Run
Life

Any need for any of those?

I haven't seen a repository of UK101 software. I'd love to offer a home for this kind of stuff at compukit.org if you wanted to send me copies.
Like the atom, the UK101 had screen noise when the screen was updated and I designed a mod to fix that so I had a UK101 with noise free graphics and no speed penalty. The mod didn't require any extra ICs, it simply rewired the screen circuitry slightly (it actually used one less IC as the screen blanking circuit got disabled as part of the mod)
The modification instructions eventually got published in "TJ's workshop" in PC World magazine for which I was paid £10 I think!

The mod ran the screen memory at 2Mhz instead of 1Mhz so that both the CPU and the screen could access at any time without conflicting but the 2114 RAMs had to be higher speed than required for 1Mhz access so it might not work reliably on early UK101s unless their screen RAM was upgraded.

If anyone's interested, I can dig out the mod instructions and post them.


Do you happen to have scans of the original article as printed in the magazine? Again, I'd love to post this online with your permission.

IanB
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Re: Compukit UK101

Postby IanB » Sat Jan 25, 2014 2:53 am

I haven't seen a repository of UK101 software. I'd love to offer a home for this kind of stuff at compukit.org if you wanted to send me copies.

Drop me a PM and we can sort something out

Do you happen to have scans of the original article as printed in the magazine?

Here's the scan from page 147 of the December 1981 issue of Personal Computer World (just to bring things back on topic, look what was on the front cover!).

I'd be interested to hear from anyone that attempts the mod as I never had any feedback to indicate if the instructions worked or not.

Note that the article refers to "01" which should of course be the 6502 clock "Φ1" but I suppose they didn't have the right typeface.
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Seldon2k
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Re: Compukit UK101

Postby Seldon2k » Thu Jun 26, 2014 12:18 am

James,

What became of the 64k EPROM, I have been asking about the upgraded
ROM's in several posts but to no avail.
Have you the ability to read the EPROM and send me a copy?

Thanks in advance,

Terry.

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daveejhitchins
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Re: Compukit UK101

Postby daveejhitchins » Thu Jun 26, 2014 6:45 am

Seldon2k wrote:Have you the ability to read the EPROM and send me a copy?
If not, I can assist, if need be :D

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

iainjh
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Re: Compukit UK101

Postby iainjh » Thu Jun 26, 2014 10:05 pm

Ian B, back on topic even more ;) .. do you please have scans of the 'BBC micro inside story' PCW mentioned on the cover?

Love PCW's from that era :)

cheers loads if not too much trouble. Unless anyone knows of an archive..

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Seldon2k
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Re: Compukit UK101

Postby Seldon2k » Fri Jun 27, 2014 12:04 pm

Hi,

I also have a massive collection of PCW's, (and others), from the 1970's through the 1980's.
They are however in deep storage and I can't access them for a few months!

When I can I will post a list of them here, I may include an index of articles!

Terry

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hoglet
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Re: Compukit UK101

Postby hoglet » Fri Jun 27, 2014 2:06 pm

Here is an index of PCW the first 10 years of PCW Magazine:
http://ukfree.tv/pcw/pcwindex.htm

Here are the articles relevant to the UK101

Computer Answers:
all change (jun82)
better graphics (aug82)
distorted view (aug82)
fans wanted (sep81)
in france (apr84)
micro rtty (nov81)
wrong! (jun81)

Programs:
butterfingers (aug84)
car rally (jul81)
conversion of units (aug82)
crossword notepad (may82)
get them (may81)
logic (nov82)
long multiplication & addition (aug82)
machine code basic converter (jul81)
screen converter (jul82)
vocabulary test (feb83)
zor (jun81)

TJ's Workshop:
easy music (sep82)
error list (dec82)
evan easier music (nov82)
improved display (dec81)
multi monitor mod (mar82)
negative supply (jun82)
ouput (jun82)
power-on reset (may82)
quirks (oct82)
reverse (jan82)
rubout (dec82)
screen handling (oct81)
simpler negative supply (sep82)
stop print (aug82)
string insert (apr82)
variables list (mar82)

iainjh
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Re: Compukit UK101

Postby iainjh » Fri Jun 27, 2014 5:38 pm

excellent, thank you. if anyone does ever come across scans... would love to see some. Ive found a couple covers, which are obviously classics now, but articles too would be superb

cheers!

iainjh
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Re: Compukit UK101

Postby iainjh » Fri Jun 27, 2014 6:36 pm

Hope Ok to drag this thread off topic (again)

has anyone seen this: a superboard ii remake. I've always had a soft spot for a UK101 (riding bike down't lane to East Barnet's CompShop in 1979 or thereabouts and saving up for one) .. but never got one.

thought this might be of interest to the Uk101'ers :)

http://www.brielcomputers.com/wordpress/?cat=39

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jonb
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Re: Compukit UK101

Postby jonb » Sat Jun 28, 2014 10:07 am

Doesn't seem to be available yet, but it looks very nice... likely to be expensive though!

omerr
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Re: Compukit UK101

Postby omerr » Fri Jul 18, 2014 3:23 am

Premier Publications did a couple of BASIC extension ROMS for the UK101 of which I have BASIC4, BASIC5 and Toolkit.
I have no documentation for these any longer and have been untangling the command syntax for the BASIC5 ROM.
Does anybody have info , documentation, magazine article etc that may give the commands and syntax for these ROMs ??

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hoglet
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Re: Compukit UK101

Postby hoglet » Fri Jul 18, 2014 6:51 am

Hi omerr (and welcome)

Have you seen the advert in Your Computer:
YourComputer811200070.jpg

There a bit of detail on Basic 5.

Dave

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flaxcottage
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Re: Compukit UK101

Postby flaxcottage » Fri Jul 18, 2014 6:56 am

That brings back memories of drooling. :lol:

BITD I lusted after that gear but could never afford it. My eldest had just been born and my wife had packed in her job so funds were quite tight.

One day I'll get the code and blow an EPROM and get it working but that will be after I have upgraded to 32K of RAM.
- John

Currently running Level 4 Econet with BBC B, BBC B+ 128K, Master 128K, 4Mb A3000, 4Mb A3020, 4Mb A4000, 4Mb A5000 dual FDD; UK101; HP41CX setup; Psion 3a, 3mx and 5mx; Z88; TI-58c, TI-59 and printer, HP-16C programmer's calculator

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hoglet
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Re: Compukit UK101

Postby hoglet » Fri Jul 18, 2014 7:01 am

Omerr,

Do you fancy uploading the ROM Images? I don't think I've seen copies anywhere else. Might even give them a try myself.

Dave

jimmydeath
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Re: Compukit UK101

Postby jimmydeath » Fri Jul 18, 2014 11:21 pm

What became of the 64k EPROM, I have been asking about the upgraded
ROM's in several posts but to no avail.
Have you the ability to read the EPROM and send me a copy?


Sorry Terry I haven't been on this thread for a while so missed your post.

The 64k EPROM only replaced one of the 4 proms, not sure if it was an upgrade or to replace a faulty one. If I can find it I will dump it but I vaguely recall it being an identical image of the revised version.

Regards

James

omerr
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Re: Compukit UK101

Postby omerr » Sat Jul 19, 2014 2:24 am

Thanks for the Premier Basic article Dave. Never seen that before.

I dont know if the ROMS would be of any use to you as they are for UK101/OHIO Superboard.

The BASIC 4 info at least gives me a bit more info as to what features it added.
What I really need is the manuals or a review I guess to get the actual command syntax.

This link is as close as I have got but have had no replies to emails to them:
http://www.computinghistory.org.uk/det/ ... wsletters/

I wonder if anyone nearby in the UK may have a bit of leverage?
These usergroup items were full of info and I would love to get copies !

Mike

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richardtoohey
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Re: Compukit UK101

Postby richardtoohey » Sat Jul 19, 2014 2:55 am

omerr wrote:I dont know if the ROMS would be of any use to you as they are for UK101/OHIO Superboard.
If you upload the ROMs, then they could be disassembled to work out the information you are after (not that I know anything about Compukits; just before my time!)


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