Three Sparrow Mainboards on EBay

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Cyprian
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Re: Three Sparrow Mainboards on EBay

Postby Cyprian » Sat Aug 12, 2017 8:35 pm

mikro wrote:
Cyprian wrote:
mikro wrote:Not needed. My (working) Sparrow also doesn't have them..

congrsts. any details? photos?

Not yet. I posted some photos from the seller here: https://www.facebook.com/groups/2962672 ... 0668246618

Too bad it's waiting for me in Slovakia while I'm in Australia still for next few months. :-/

nice machine, "spring 2018" doesn't sound good but we 'Atarians' used to wait for good things.
Pls let us know also here on AF, what is difference between F030 an Sparrow.
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Re: Three Sparrow Mainboards on EBay

Postby iggydrougge » Mon Aug 21, 2017 8:46 pm

What about that TOS 2.07 the seller mentions?

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Mon Aug 21, 2017 9:31 pm

iggydrougge wrote:What about that TOS 2.07 the seller mentions?

What about it? He offers it only if you "Buy it now". I don't think those are going to sell for such price so it's perhaps a desperate move to attract more buyers.

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Re: Three Sparrow Mainboards on EBay

Postby Rustynutt » Mon Aug 21, 2017 11:32 pm

mikro wrote:
iggydrougge wrote:What about that TOS 2.07 the seller mentions?

What about it? He offers it only if you "Buy it now". I don't think those are going to sell for such price so it's perhaps a desperate move to attract more buyers.


It's been a while since I've seen it (no need for it), Sparrow TOS was floating around. I may have it on an old CD. Keep in mind, that disk was burned 22 years ago :)

Even then, you wont run much softs on it. At this point it's a collectors item, like the $2000 Atari CD that's been on eBay for 10 years :)

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Re: Three Sparrow Mainboards on EBay

Postby iggydrougge » Wed Aug 23, 2017 9:36 am

I mean, is it useful outside the Sparrow motherboard, and how does it compare visavis TOS 2.06 and TOS 4?

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Re: Three Sparrow Mainboards on EBay

Postby khooke » Mon Aug 28, 2017 3:17 am

One of those boards, s/n ending 40 is listed in this thread here. I didn't check the others. Just thought this was interesting given the limited number of these that were supposed to have been produced (they're previously known/identified boards): viewtopic.php?f=27&t=31148

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Mon Aug 28, 2017 4:06 am

khooke wrote:(they're previously known/identified boards): viewtopic.php?f=27&t=31148

Actually they are not, I update the list when I find a new Sparrow on the net (doesn't happen very often ;-)).

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Re: Three Sparrow Mainboards on EBay

Postby Mindthreat » Tue Sep 05, 2017 5:57 pm

The Sparrow not listed here missing keys and non-functional, the buyer wanted to fix and sell for $5,000 - and that's in pretty rough shape. Needless to say, I'm probably not going to be getting that one for the case or any other for that matter but, if someone does have a non-functional Sparrow case they are looking to sell, please let me know. Unless you want $5,000 for it, then please do not let me know.

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Re: Three Sparrow Mainboards on EBay

Postby wongck » Tue Sep 05, 2017 11:51 pm

Wow 8O 5 grand Wow 8O
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My Atari stuff for sale - click here for list

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Thu Sep 07, 2017 10:09 pm

FYI, I convinced the seller to let it go for a considerably cheaper amount so I have both rev.1 and rev.2 boards waiting to be paid & shipped. Not sure whether he is going to include the TOS ROMs, though. So I plan to compare them to the working unit I have and hopefully just populate the missing components.

Then most likely I will put it in a ST case + keyboard and sell to anyone (EU based, too) interested.

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Re: Three Sparrow Mainboards on EBay

Postby Mindthreat » Fri Sep 08, 2017 12:05 am

mikro wrote:FYI, I convinced the seller to let it go for a considerably cheaper amount so I have both rev.1 and rev.2 boards waiting to be paid & shipped. Not sure whether he is going to include the TOS ROMs, though. So I plan to compare them to the working unit I have and hopefully just populate the missing components.

Then most likely I will put it in a ST case + keyboard and sell to anyone (EU based, too) interested.


Convinced who, the eBay seller?
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Re: Three Sparrow Mainboards on EBay

Postby mikro » Fri Sep 08, 2017 3:16 am

Yes.

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Re: Three Sparrow Mainboards on EBay

Postby jvas » Fri Sep 08, 2017 11:45 am

mikro wrote:Then most likely I will put it in a ST case + keyboard and sell to anyone (EU based, too) interested.


I am interested !

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Sat Sep 09, 2017 5:29 am

jvas: you (and others) have to wait as with the working Sparrow unit... untill Spring 2018. :) (I know, it hurts, myself too).

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Re: Three Sparrow Mainboards on EBay

Postby jvas » Mon Sep 11, 2017 7:05 am

mikro wrote:jvas: you (and others) have to wait as with the working Sparrow unit... untill Spring 2018. :) (I know, it hurts, myself too).


I can wait :D

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Wed Oct 25, 2017 10:09 pm

Two more Sparrows available from the same guy:

https://www.ebay.co.uk/itm/302500195351
https://www.ebay.co.uk/itm/302500212155

No, I'm not taking these. ;-)

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Re: Three Sparrow Mainboards on EBay

Postby calimero » Wed Oct 25, 2017 10:39 pm

Thanks! I will add them to database http://milan.kovac.cc/atari/chipmunk/


btw
do we know who is ebay user "nyfinest"?
is he some ex-Atari employees?
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Re: Three Sparrow Mainboards on EBay

Postby mikro » Fri Oct 27, 2017 11:23 pm

It's the guy behind the (ex-?)Wizztronics company.

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Sun Aug 26, 2018 11:25 am

Rustynutt wrote:If Steve says they could probably be made to work, I imagine he knows what he's talking about.

Well, it took some time but I have managed to try both boards (Rev.1 & Rev.2) with all the components fitted (CPU, RAM, TOS 2.07; in the rev.2 one I had to put in the AJAX, too).

To make it brief, rev.1 didn't work at all (black screen although I could see some effort to change it), rev.2 "nearly" works:
IMG_20180826_123147.jpg

So apparently something is happening and could be debuggable with an oscilloscope.

Another bad news: I tested the diagnostic cartridge (which works on the Falcon) in my working Sparrow, nope, doesn't work. So you are on your own.

So Steve's words are a bit misleading, I've been in touch with people owning together six of those boards, none of them could make it work just with supplying missing ICs.
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Re: Three Sparrow Mainboards on EBay

Postby mzry » Sun Aug 26, 2018 11:37 am

Maybe Exxos could fix them for you.
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Re: Three Sparrow Mainboards on EBay

Postby derkom » Sun Aug 26, 2018 2:05 pm

mikro wrote:in the rev.2 one I had to put in the AJAX, too


Had to or chose to? I've got rev.2 #50, with no AJAX on the board. (I have the chip, but haven't wanted to solder it on.) I have been operating under the assumption that the board should work without the AJAX, simply with no floppy support. Am I wrong?

I haven't been able to get much out of the board. I put a 25 MHz 68030 on it (which according to Freescale docs should have no trouble with a 16 MHz clock), an Exxos SIMM board with 16 MB for the RAM, and dhedberg's 3-in-1 video adapter to connect to a VGA monitor. I am probably pushing my luck by using multiple third-party pieces there, and have so far gotten nothing out of it except for some steady green-on-black "static".

Right now that project is on hold while a few other life things sort themselves out, but I'm hoping to borrow some Atari-original RAM and video adapter hardware from a friend, to see if that makes any difference. And maybe try to scrounge up the right CPU.

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Sun Aug 26, 2018 2:25 pm

derkom wrote:Had to or chose to?

Well, my reference point is a working Sparrow and that one has an AJAX installed.

Btw the picture I've posted works only on RGB output, so indeed you may be pushing your luck on VGA. On the other hand, I've bought a 50 MHz 030, I don't think there's a reason why it shouldn't work on 16 MHz, I have a 33 MHz 030 in my CT2 overclocked (50 MHz) and underclocked (16 MHz) without any problem.

One day I'll take a deeper look, I just wanted to warn anybody considering to buy such a board from (ex-)Wizztronics that it's definitely not a straightforward operation.

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Re: Three Sparrow Mainboards on EBay

Postby derkom » Sun Aug 26, 2018 2:57 pm

mikro wrote:On the other hand, I've bought a 50 MHz 030, I don't think there's a reason why it shouldn't work on 16 MHz, I have a 33 MHz 030 in my CT2 overclocked (50 MHz) and underclocked (16 MHz) without any problem.


You may be wrong about that. Check out page seven of the Freescale MC68030 Electrical Specifications. That seems to indicate that the 50 MHz won't clock lower than 25 MHz. But then again, it also seems to say 33 won't clock below 20, and your experience clearly says otherwise.

Edit: That's page seven of the pdf. It's actually numbered "5".

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Re: Three Sparrow Mainboards on EBay

Postby mikro » Sun Aug 26, 2018 4:04 pm

derkom wrote:You may be wrong about that.

I may but I am not. ;-) Just when I thought I have to do the whole procedure (remove screws, shielding, PSU, CPU & TOS ROMs and putting them into the non-working machine) again I realised I can do the opposite - just to replace the 16 Mhz CPU with the 50 MHz one. Does it work? It does! So Motorola docs go to hell. ;)

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Re: Three Sparrow Mainboards on EBay

Postby derkom » Sun Aug 26, 2018 4:10 pm

mikro wrote: just to replace the 16 Mhz CPU with the 50 MHz one. Does it work? It does! So Motorola docs go to hell. ;)


I'm glad to hear that, because it means my 25 MHz CPU is definitely fine then. :D


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