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by rubber_jonnie
Fri Mar 29, 2024 5:54 pm
Forum: HARDWARE ISSUES
Topic: ATARi 1040STE keyboard vs standard 520/1040ST
Replies: 12
Views: 254

Re: ATARi 1040STE keyboard vs standard 520/1040ST

mathias_matschke wrote: Fri Mar 29, 2024 5:49 pm it's the 520 ST without floppy. To be precise it is a 520STM.

Thanks again.
The ST and STM keyboards are not interchangeable with later STF/M/Es as mentioned.

You can try swapping keycaps, but that's all you can do.
by rubber_jonnie
Fri Mar 29, 2024 5:52 pm
Forum: 8 BIT CORNER
Topic: OSI 600D Superboard Build
Replies: 322
Views: 55496

Re: OSI 600D Superboard Build

I've been looking at cassette saving for the OSI today for fun ( :excited: ) and have hit another issue, possibly another dead IC, and though the TL866 says otherwise, I have ordered a replacement just in case. I also managed to find some 7476's as well so those are also on the way. It would be nice...
by rubber_jonnie
Fri Mar 29, 2024 5:04 pm
Forum: PSU (power supplies)
Topic: Dead psu where to start diagnosing?
Replies: 2
Views: 55

Re: Dead psu where to start diagnosing?

First off to test this PSU you'll need load resistors, which I think you have. Just be careful to mount them somewhere where they can dissipate heat as they do get pretty hot. Next obligatory warning - The heatsinks have high voltages on them, so DO NOT TOUCH when running the PSU for testing. Also t...
by rubber_jonnie
Fri Mar 29, 2024 3:32 pm
Forum: 8 BIT CORNER
Topic: OSI 600D Superboard Build
Replies: 322
Views: 55496

Re: OSI 600D Superboard Build

OK, so I tried this which I had kicking round in a drawer. It's just a composite mod I made for an Atari 2600 (I think) that I abandoned and bought a ready made one for that included a nice cable and audio built in too. IMG20240329145534.jpg IMG20240329150554.jpg And there is a definite improvement ...
by rubber_jonnie
Fri Mar 29, 2024 1:08 pm
Forum: MEMBER BLOGS
Topic: General Stuff(tm)
Replies: 1703
Views: 323992

Re: General Stuff(tm)

When I got the Apricot Xi out on the bench on Wednesday evening in anticipation of the arrival of the TexElec pads I found that the hard drive was finding it difficult to start spinning up. This morning, after getting back from work, I opened the machine up again and took a look. Knowing that previ...
by rubber_jonnie
Fri Mar 29, 2024 1:08 pm
Forum: MEMBER BLOGS
Topic: General Stuff(tm)
Replies: 1703
Views: 323992

Re: General Stuff(tm)

Apparently the post-person failed to deliver any post today as no-one was on our reception at five past two this afternoon. *sigh* P.S. Well, well. The receptionist says that she was at her desk at 2:05pm and was there without a break since 1:40pm. she's going to have stern words with the postie on...
by rubber_jonnie
Fri Mar 29, 2024 1:05 pm
Forum: 8 BIT CORNER
Topic: OSI 600D Superboard Build
Replies: 322
Views: 55496

Re: OSI 600D Superboard Build

I think the fuzzy video thing is due to the change in speed (and manufacturing process) between now and the 1970s. I wouldn't be surprised if it's that at all. Indeed, I'm surprised that the BoM didn't state a specific manufacturer's part as the timings differed so greatly back in the day. There ar...
by rubber_jonnie
Fri Mar 29, 2024 10:05 am
Forum: HARDWARE ISSUES
Topic: ATARi 1040STE keyboard vs standard 520/1040ST
Replies: 12
Views: 254

Re: ATARi 1040STE keyboard vs standard 520/1040ST

Hi Guys, thank you for the inout and happy that some seems interchangeable. @exxos I am also very suspicious re the too white/off color keys on the 520ST, as they seem just wrong and at least 20 other keys are also in this wrong color. So as my 520 ST keyboard is different can, I just put in a keyb...
by rubber_jonnie
Fri Mar 29, 2024 9:58 am
Forum: 8 BIT CORNER
Topic: OSI 600D Superboard Build
Replies: 322
Views: 55496

Re: OSI 600D Superboard Build

So here is the list of things that caused me problems during my build. Everybody will be different, and I'm happy to say I didn't have any shorts at all, but what I did have were some errors of my own making, and some that were baked in to the info I had in front of me. Clock circuit problem 1 - I u...
by rubber_jonnie
Thu Mar 28, 2024 3:05 pm
Forum: 8 BIT CORNER
Topic: OSI 600D Superboard Build
Replies: 322
Views: 55496

Re: OSI 600D Superboard Build

stephen_usher wrote: Thu Mar 28, 2024 2:59 pm Oh, so marginal timings... What fun.
Indeed...

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