Newbear 77-68

[chris-uk]

I've added the few listings I have found so far to:-

http://www.cmas-net.org.uk/vintage/Newbear-77-68/Programs/

Chris

 

[swynn97]

I'm in the process of restoring my system - it's been off since 1988.... I'm currently waiting for a new T-BUG Eprom. If anybody needs the S19 format file for T-BUG, let me know. Also, could the owner of the docs provide me with the 32K DRAM design note?

I think I have some additional design docs beyond what is listed in this thread, so I'll post my entire set when I've scanned everything.

Simon

 

[chris-uk]

...could the owner of the docs provide me with the 32K DRAM design note...

OK: Its only 2 double sided sheets of A4, folded into an A5 booklet, so I've quickly scanned the pages and put them into a .zip and uploaded that.

chris

 

[swynn97]

Thanks Chris!

 

[chris-uk]

More docs ( including all the 77/68 newsletters I have + some other bits ) now posted to

http://www.cmas-net.org.uk/vintage/

 

[chris-uk]

I've scanned all the docs for 77/68 that I have available at present and re-arranged a little... all are at:-

http://www.cmas-net.org.uk/vintage/Newbear-77-68/

Index:-

[ ] 77-68-Cassette-Blandford-Cottis.pdf 11-Aug-2016 16:20 555K
[ ] 77-68-Cassette-Kansas-City-CI30-60.pdf 14-Aug-2016 19:01 590K
[ ] 77-68-Construction.pdf 09-Aug-2016 17:04 4.0M
[ ] 77-68-DN15-4K-RAM-BOARD.pdf 08-Sep-2016 16:23 2.8M
[ ] 77-68-DN22-MON-1-Board.pdf 12-Sep-2016 14:44 2.1M
[ ] 77-68-DN35-6800-Prom-Programmer.pdf 13-Sep-2016 13:03 586K
[ ] 77-68-DN36-VDU-Board.pdf 13-Sep-2016 13:03 1.5M
[ ] 77-68-DN38-ROM-Monitor-Board.zip 13-Sep-2016 13:04 1.1M
[ ] 77-68-DN47-ROM-A-Board.zip 13-Sep-2016 16:16 641K
[ ] 77-68-DN49-PIO-A-Board.pdf 13-Sep-2016 14:17 666K
[ ] 77-68-DN53-32K-DYNARAM.zip 13-Sep-2016 16:10 294K
[ ] 77-68-DN81-79-09-6809-CPU-Board.zip 13-Sep-2016 14:47 772K
[ ] 77-68-DN82-Disc-Controller-Board.zip 13-Sep-2016 16:10 1.6M
[ ] 77-68-MINIMON-sw-for-MON1-board.pdf 09-Aug-2016 20:26 3.1M
[ ] 77-68-MON-1-BOARD.pdf 09-Aug-2016 20:27 4.4M
[ ] 77-68-TBUG-Monitor-Software-Package.zip 08-Sep-2016 16:23 5.4M
[ ] 77-68-The-Well-Tempered-Microprocessor-S3-Tune-Player-1977.pdf 08-Sep-2016 16:23 481K
[ ] 77-68-Usergroup-Newsletter-1-Sept-1977.pdf 07-Sep-2016 12:52 139K
[ ] 77-68-Usergroup-Newsletter-2and3-April-1978.pdf 07-Sep-2016 12:52 2.0M
[ ] 77-68-Usergroup-Newsletter-4-Sept-1978.pdf 07-Sep-2016 14:26 737K
[ ] 77-68-Usergroup-Newsletter-5-Jan-1979.pdf 09-Sep-2016 09:47 1.2M
[ ] 77-68-Usergroup-Newsletter-6-July-1979.pdf 09-Sep-2016 09:47 2.6M
[ ] 77-68-Usergroup-Newsletter-7-Dec-1979.pdf 09-Sep-2016 10:51 846K
[ ] PETITEVID-Mark-2-Tech-Description-1978.zip 09-Sep-2016 11:41 491K
[DIR] Pictures/ 29-Aug-2016 10:44 -
[DIR] Programs/ 10-Aug-2016 08:38 -
[TXT] readme.txt 08-Sep-2016 15:00 848

 

[swynn97]

I have both TSC 4k and 8K basics running on my 77/68, supporting the ACIA/TBUG and ctrl-breaks. If anybody wants a copy, send me a pm or post.

Simon

 

[chris-uk]

BASIC files from Simon now posted to :-

http://www.cmas-net.org.uk/vintage/Newbear-77-68/Programs/Basic/

Chris

 

[Moonferret]

Thanks again Chris for scanning all this in. I've got no excuse now not to get my machine up and running

Cheers,
Dave

 

[chris-uk]

I have now posted a 77-68 brochure from Simon ( swynn97 ) at:-

http://www.cmas-net.org.uk/vintage/Newbear-77-68/77-68-Brochure-1979.pdf

Chris

 

[hughmason]

I built one of these around 1982. I donated the machine to the Computer Museum, Swindon, UK about 2002 I think - no idea if they retained it. Happy to answer any questions.

I will look out the documentation I have buried in files and post it here: https://www.evernote.com/pub/hughmason/newbear77-68documentation

 

[chris-uk]

My brother & I have been playing around with the 77/68s and so I've taken a few more pictures and update the notes at:-

www.cmas-net.co.uk/vintage/Newbear-77-68/Pictures/

Chris

 

[daver2]

Nice!

And you even have it doing something useful around the house - like driving the trains...

Dave

 

[chris-uk]

Hello Simon,

Did you get around to scanning & posting your docs ? - I'm interested as my brother's collection of docs is incomplete.

No problem if not, I'd just rather not miss the stuff it you've posted it

Chris

 

[mister35mm]

If you wanted to build a 'modern' Newbear 77-68 is there a 6800 that only requires a 5v supply to make it a bit simpler?

regards

Stephen
G7VFY
https://www.facebook.com/groups/PROGRAMMINGFORTH/
https://www.facebook.com/groups/6809assembly/?ref=group_header

 

[chris-uk]

The 77-68 motherboard we have with only a 4k ram board and home-brewed board with rom/ram, pio, acia only uses a 5v supply.
( See: http://www.cmas-net.org.uk/vintage/Newbear-77-68/Pictures/Sys3-77-68-Neat-CPU-Board-view-2.jpg )

It's only some of the other boards which need other voltages.
.
If you wanted to build a `modern` one, a small computer (such as Raspberry PI) with SIMH could be a start point - the SWTP emulation could be modified/configured to look more like a 77-68

It rather depends on if your interest is in building hardware or `playing` with software

 

[mister35mm]

Building a modern Newbear 77-68

Building a modern Newbear 77-68

Thanks very much.

I'd like to have a go at the hardware....

The 77-68 motherboard we have with only a 4k ram board and home-brewed board with rom/ram, pio, acia only uses a 5v supply.
( See: http://www.cmas-net.org.uk/vintage/Newbear-77-68/Pictures/Sys3-77-68-Neat-CPU-Board-view-2.jpg )

It's only some of the other boards which need other voltages.
.
If you wanted to build a `modern` one, a small computer (such as Raspberry PI) with SIMH could be a start point - the SWTP emulation could be modified/configured to look more like a 77-68

It rather depends on if your interest is in building hardware or `playing` with software

 

[MaddyC]

Interesting to find a conversation about this...

One of my brothers worked for Newbear in the 77/68 team (under Tim Moore) when they were based in Newbury ( Berks, UK ) and my other brother still has two of them.
He orignally had an old ASR33 teletype as its console terminal.

He still keeps one in working condition and regularly plays some games on it... though he uses a terminal emulator on a PC as the console nowadays.
He has also recorded all of his program tapes via sound recorder on the pc and plays them back from that to load the programs - much faster than
an old cassette recorder.

I know he has some literature, so I'll ask him about it.

It's great to see so much enthusiasm for the Newbear 77-68. My father was Tim Moore and he sadly passed away in August 2022. He was a true pioneer with the development of computers. We donated some of the manuscripts to the museum of computing history during the Covid lockdowns.

 

[jdreesen]

For what it's worth : I created the BitBucket, which is a generic 6800 / 6802 system on an Eurocard sized PCB ( i.e. 10x16 cm)
It has either a 6802 or a 6800/6871 combo, a 6850' ACIA, RAM & ROM and a GAL that enables to freely define the memory map. It is 5V only.
Should be reasonably easy to transform into a NewBear77. Still have some PCB's left....

 

[colinwre]

It's great to see so much enthusiasm for the Newbear 77-68. My father was Tim Moore and he sadly passed away in August 2022. He was a true pioneer with the development of computers. We donated some of the manuscripts to the museum of computing history during the Covid lockdowns.

That is a nice looking set of early boards your father built, fascinated by these systems, which came out as I started working 77/78. Interested by the Newbury connection, I must have driven past the Bartholomew Road office in Newbury for 13 years and and never worked out
who Newbury Labs were. Worked for a computer company which might have been based a couple of buildings north of that office in 1979, but never found any connection.