Search found 692 matches

by ralcool
Fri Nov 18, 2016 10:35 am
Forum: News & Announcements
Topic: Atari meetup in Brisbane, QLD (first in a decade!)
Replies: 16
Views: 7257

Re: Atari meetup in Brisbane, QLD (first in a decade!)

Hey all.

It is the night of the meet, but no I am unable to make it due to distance.

I do hope it turns out a success, with some photos to share of the evening.

Cheers!
Sean
by ralcool
Mon Aug 22, 2016 2:28 pm
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

http://web.archive.org/web/201604190702 ... rdware.htm

You guys could probably tell us more about this project... but wow.
by ralcool
Tue Jul 19, 2016 7:06 am
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

Finding some simple pictures isn't very easy, but I want to bring to your attention a version of the Speaking Clock that I know to have used. All things come to an end, but the mechanical nature is intriguing. Not to mention ladies working around the clock to read you the time before it was invented...
by ralcool
Thu Jul 14, 2016 3:11 pm
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

I guess on the back of that discussion I have to mention, the guy that talked about the reading the screen via the emissions... (And I now remember he also used that term 'Tempest') ... I'll add an edit here and say that I'm not sure if I can say his name okay?! Was another interesting story you'll ...
by ralcool
Sat Jul 09, 2016 11:02 am
Forum: Hardware
Topic: Mega STE 1.44 floppy upgrade
Replies: 26
Views: 4523

Re: Mega STE 1.44 floppy upgrade

If you still need a GAL made... I have a programmer that can do it.

Might even have a spare 16V8 chip or two somewhere.
by ralcool
Sat Jul 09, 2016 10:57 am
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

I did something similar at boot camp, I was tuning my TV while a friend in the next room (coincidentally on an analogue mobile phone call) when the TV picked up the audio from his phone- no picture of course, but his voice was clear as a bell through the TV speakers. About 800mhz IIRC was the mobile...
by ralcool
Sat Jul 09, 2016 7:18 am
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

There are a few videos on the utube that explain the clever programming and resourcefulness of the Apollo Flight computer. Not to be dismissed lightly on account of it being 'old', it lives among the other fathers of the digital age. Now, A paper that I cannot find to share went to great lengths to ...
by ralcool
Wed Jul 06, 2016 10:20 am
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

Which probably has more memory than this: http://gizmodo.com/5932207/the-computer-for-the-apollo-program-used-rope-memory-woven-by-little-old-ladies http://drhart.ucoz.com/index/core_memory/0-123 Don't think it will hold TOS2.06 though. :) http://hackaday.com/2013/10/09/making-a-core-rope-read-only-...
by ralcool
Tue Jul 05, 2016 11:48 am
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Re: Something worth sharing

How most people see circuit diagrams

http://imgs.xkcd.com/comics/circuit_diagram.png
by ralcool
Thu Jun 30, 2016 12:44 pm
Forum: Hardware
Topic: Something worth sharing
Replies: 17
Views: 6176

Something worth sharing

I feel sometimes in the spirit of hardware hacking sometimes we come across things that inspire or amaze. To kick off the idea I found this, and its really quite something even if its not actually Atari related. (Although you might argue Commodore is the evil half brother) http://blog.tynemouthsoftw...
by ralcool
Wed Jun 29, 2016 10:43 am
Forum: Hardware
Topic: ELCO high density floppy module - anyone had any experience with this?
Replies: 32
Views: 7194

Re: ELCO high density floppy module - anyone had any experience with this?

I think that is the alternative mode provided by the elCo, but the explanation is bad in the manual. For this the Pin 2 is wired to the Violet wire. B: drive would go to the white if fitted. The 3 pin connector is then all grounded. However I never tried this configuration, and the modified Sony wou...
by ralcool
Wed Jun 29, 2016 9:50 am
Forum: Hardware
Topic: ELCO high density floppy module - anyone had any experience with this?
Replies: 32
Views: 7194

Re: ELCO high density floppy module - anyone had any experience with this?

Do you have a meter or cro to check the clk frequency to the WDC while the drive is being accessed? Do check those voltage levels, there are different things happening to make this all work. Using TOS 2 mean no driver at all, just that the jumper adds the HD format menu. 1.6 and under need the step ...
by ralcool
Wed Jun 22, 2016 12:36 pm
Forum: Hardware
Topic: ELCO high density floppy module - anyone had any experience with this?
Replies: 32
Views: 7194

Re: ELCO high density floppy module - anyone had any experience with this?

The manual is conflicting. It says so on page 6 (page 8 in the PDF), but doesnt say anything elsewhere. Also it makes connections to the PSG that I don't really understand, why on earth does it connect to the lower 2 bits of the parallell port? I've often wondered if they were using those bits to d...
by ralcool
Wed Jun 22, 2016 11:44 am
Forum: Hardware
Topic: ELCO high density floppy module - anyone had any experience with this?
Replies: 32
Views: 7194

Re: ELCO high density floppy module - anyone had any experience with this?

I remember it was a absolute pain to configure. Use the 3 pin header for the density detect.. the red wire for Drive A, ground the brown wire, and orange too unless you need it for drive B. I had to make a modification to the detect switch on my Sony... http://www.atari-forum.com/viewtopic.php?f=15&...
by ralcool
Wed Apr 13, 2016 12:05 pm
Forum: Hardware
Topic: [PICS] Exxos TOS 1.2/1.4 Board - Build and fitment
Replies: 3
Views: 1694

Re: [PICS] Exxos TOS 1.2/1.4 Board - Build and fitment

If I'm not mistaken Spiny, if you can fit that dallas chip into any of the spare 6 tos sockets under that board.. That program we found will read it.
by ralcool
Sun Sep 27, 2015 10:05 am
Forum: Hardware
Topic: Slightly modded STM...
Replies: 18
Views: 5525

Re: Slightly modded STM...

Just went looking through the dusty atari mod corner.. there is still one early LaScan pcb sitting here.

I pinched the header pins off it at some point... I can put a fresh one on and clean the pcb... it should be fine.

We'll chat later cause I have to possibly test it too. Hi... :)
by ralcool
Fri May 22, 2015 4:19 am
Forum: Hardware
Topic: Maxon MACH16 CPU Speeder Manual ...
Replies: 13
Views: 8441

Re: Maxon MACH16 CPU Speeder Manual ...

Doesn't it feel like some kind of dichotomy. On one hand a completed (superior?) Mach16 booster with cache, but little knowledge of its design workings or software. The other, Exxos plugging away with prototypes trying to reinvent the wheel. And here is a 'lost' Ferrari gathering dust. There is no m...
by ralcool
Wed Apr 01, 2015 11:32 pm
Forum: Hardware
Topic: Autoswitch overscan by System Solutions
Replies: 13
Views: 4608

Re: Autoswitch overscan by System Solutions

Yeah that thing... I have the manual and the software for it... as re-released by Compo. The manual was a terrible copy to begin with, but I'll scan it in and put it up on my google drive. It was/is a cool mod, I found a version that was a derivative home brew design called LaceScan. I built it to t...
by ralcool
Sun Feb 15, 2015 10:19 pm
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

Hey Colin, Share your copy of TOS, I'll have a look and see if it is indeed patched for step rate/HD .... No offical TOS 1.4 was so who knows. Otherwise its another version for the archives. :cheers: A question keeps burning in me... Where is the wiring for the modual?, Why was it removed? Did they ...
by ralcool
Sat Feb 14, 2015 11:37 am
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

I can not see any reason why I couldn't pass on the final GAL code Holger wrote for Darklord through my testing for, a GAL based HD mod board... he had some strange timing issues that affected his awesome PAK '030.. some members know this... (they) can/have read all about that elsewhere, but the GAL...
by ralcool
Fri Feb 13, 2015 11:41 pm
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

The Atari (Pre- Mega STE/TT/Falcon) motherboard has no idea about Pin 2. And it isn't used at ALL. (But some boards might have grounded it to tie it off, so we cut the wire and use it ourselves in case) Pin 2 Hi/Lo Density signal comes from the drive. IIRC, it is high (5v) when HD disc inserted, and...
by ralcool
Thu Feb 12, 2015 9:12 pm
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

Hi Colin, This modual was a pain to set up when I first got it, and partly to blame for me attempting other methods. Right the Violet, White and Grey wires of the 10w should NOT be used. You'll see in my loom they are cut short. They don't work. Connect the Brown wire to the Drive Pin 2 of A:, The O...
by ralcool
Thu Feb 12, 2015 9:39 am
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

Thanks Ralcool, you're a star. One slight fly in the ointment however, the documentation talks about the wires to the units connectors in terms of their colour and not pin number. As I do not have the original wiring, I still don't know which pin connects to where! You don't happen to have said wir...
by ralcool
Thu Feb 12, 2015 2:17 am
Forum: Hardware
Topic: 1.44Mb HD module info request.
Replies: 27
Views: 8222

Re: 1.44Mb HD module info request.

Hey there, That does look just like my old ElcoHD thing. I've got the manual and the software here. I probably uploaded it before, and I'll do so in this thread after I fire up the workshop computer and look for the manual too. I dunno if I've have a scanned copy of the book but I'll scan it up for ...
by ralcool
Sat Jan 24, 2015 10:54 am
Forum: Hardware
Topic: Installing COMPO/TALON AT-SPEED in mega ST
Replies: 24
Views: 4859

Re: Installing COMPO/TALON AT-SPEED in mega ST

Okay, So I'll try my Google Drive.. meh, Should work.

https://drive.google.com/file/d/0B5GwSS ... sp=sharing

Apparently. :mrgreen:

Cheers!

Sean

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