hueyjones70
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Posts posted by hueyjones70
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2 hours ago, Mathy said:
Hello guys
1551 sounds like something for the Commodore community.
Sincerely
Mathy
I could badge it as XL551, I had XF315 badges made for my converted SF314.
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8 hours ago, _The Doctor__ said:
You could get it badged as a 5050 drive...
or a 1551 drive
I like the 1551 idea. XL 1551 or just 1551
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I am also fitting a Mitsumi 503 mechanism with a black face plate into another empty 1050 case. I haven't finished it but when finished, I will have a 1050 DSDD disk drive.
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I had it made at a trophy shop. It cost about $10. I took in the 1050 name badge that I had completely flattened out and told them to make the new one the same size. I put the bends on the ends. I haven't glued it down good enough, I am going to get some contact cement for that.
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When Dropcheck introduced the new and improved XF 551 PCBs, I bought 4. I butchered the first one that I attempted to populate by soldering in the wrong components and then destroying some traces in the desoldering process. Two of the next 3 turned out OK so I had two working 551 PCBs even though they were the old type. I finally used one of them along with an empty 1050 case to create a 1035 disk drive. I had to do some modifications to the bottom case. I glued some pieces of wood to the bottom case so I could secure the PCB and I cut a rectangular hole in the rear of the case. Afterwards I made a fitted a piece of plastic over the rectangular hole that had cutouts for the SIO connectors, power supply, switch, and dip switch. The switch in front is a dummy but the LED indicates power on.
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My SpartaDOS X cart has stopped working. Where can I get another one?
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I bought a Mitsumi 503 5.25" drive mech and I had a spare XF551 MB so I am going to install it in a 1050 case so I will have XL styled DSDD drive. I have just finished installing a 3.5 mech in an XL case. I'm just waiting for the 1035 label I am having made before I post pictures.
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On 6/10/2023 at 11:05 PM, _The Doctor__ said:
the doubler rom images et al and the instructions to make the ram stack are on these forums, a search should yield at least 2 readily usable bins and 2 different memory stack wiring configurations.
I have the RAM stack and as I stated previously, I don't have the capability to produce my own ROM. I would like to know where I can purchase one.
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What eprom is needed to make the USD work? I have an original USD, double height, molded plastic cover, but I don't know anything about the eprom that should go with it. I don't have the expertise or the equipment to program my own eproms.
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Are US Doubler DD disks compatible with XF551 DD disks?
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I found a list of 3.5 floppy drives that have instructions on how to to make them compatible with Amiga drives. Is there a similar list for Atari drives?
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Has anyone had an issue with the oscillators? I have had about 50% of mine to fail.
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Has anyone had an issue with the oscillators? I have had about 50% of mine to fail.
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Are these boards available thru OSHPARK or any other place? I have two or three of the old boards that I would like to try and resurrect. I am going to install a 3.5 floppy drive in a 1050 case.
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I am interested in three, what would be my total cost?
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I believe that would be up to the designer dropcheck (Lenore Underwood). She ran an online Atari store named Bits of the Past. She remanufactured some things and redesigned some others. I personally thought her redesign of the XF551 PCB was the most useful and the SF551 was the coolest things she did.
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On 5/11/2023 at 10:12 AM, Iguana Bob said:
Thanks for reviving this old thread. Was wondering what this was. Got this board in a lot of stuff I picked up a few months back. Very well made. Got to be from the same guy. Looks like a later revision perhaps?
I would be interested in learning more about this board. What casing is it designed for, what is the power supply, is there a BOM. The board in the picture at the top is not the same board as the bottom two.
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I don't believe this was made by the same person. The boards that were made by dropcheck had two sio connectors that weren't standard Atari SIOs. I will post a picture of her board tomorrow. I have several. Her board also used the same power supply as the SF 314/354. This is the dropcheck board.
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I don't think they are. The web site has temporarily shut down and the vendor sold out.
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Your 3 output cable probably has composite video and left and right audio. You need a cable that has 4 outputs that are chroma, luma, composite, and audio or a cable that outputs audio, composite, and S-video.
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Thanks for the clarification.
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As soon as I can find the time I plan to work on this project again.
or a 1551 drive
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XF551 Repair Question
in Atari 8-Bit Computers
Posted
I have a reimaged XF551 PCB that isn't working. When I turn on the disk drive it does the normal move to track zero. When I turn on the computer, I hear a couple of clicks like it is going to boot, then I get a screen that shows info about the OS developer, (Dorndorf) an error message (16). That tells me that the board is making some communication with the computer. Where should I start in my efforts to correct the problem?