Tandy 1000 TL Part 1 : Overview of the PC |
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- เผยแพร่เมื่อ 28 ก.ย. 2019
- This video is the first part in a series of videos about my Tandy 1000 TL
Still in time for #SEPTANDY, a collaborative effort and the brainchild of Mr. Lurch in collaboration with AkBKukU, Adrian's Digital Basement and DaveJustDave. Be sure to check out their channels / videos for some excellent content (links below) .
Other channels for Sep-Tandy:
DaveJustDave : / @davejustdave
AkBKukU: / akbkuku
Adrian Black: / craig1black
Mr Lurch's Things: / @mrlurchsthings
A great site for Tandy resources : www.oldskool.org/guides/tvdog/... and nerdlypleasures.blogspot.com/s... - วิทยาศาสตร์และเทคโนโลยี
Awesome! Looking forward for the part 2.
Should be up in a couple of days ... have a video planned on gaming and a detailed hardware review
Again a well made and entertaining video. Nice that you teamed up for the Septandy collaboration. I didn't know the Tandy's where sold in Europe. Never seen one here in the Netherlands...
I have 2. Also have a Tandy 1000 SL (8086) :) put they are indeed very rare .... If it wouldn't have been for my 5155 I would have created some videos sooner for #septandy ... But have footage for 2 more video's on this one ... But they will need to create an #octandy for me :)
Awesome video!!!
The TL was produced by Panasonic, the OEM version being the Panasonic Small Business System.
The 1000TL can be expanded to 768K of RAM so that the onboard video doesn't share any of the system RAM. Use SETUPTL /A for Advanced options. And did you try low-level formatting that MFM hard drive?
9v on the 12V rail is normal for a power supply of the era when there is no actual load. If you hooked up a hard drive or something, the voltage should show closer to 12v.
You can actually damage the power supply without a load.
And some power supplies won't even startup without appropriate load
For anybody trying to use 1.44MB disks formatted as 720KB disks, my advice is to format them at 1.44MB first and confirm that there are no bad sectors, then tape over the hole and format them in the destination system before copying data to them. I know that 1.44MB drives can technically format at 1.44MB disk at 720KB, but I've never gotten good results that way.
Great Video! I've never seen a Tandy in Sweden unfortunately, don't think they where ever sold here.
Also super rare over here .... When they do pop up a lot of the time the sellers don't know that much about it so you can get a good deal on them, but you have to be quick.
we need those analog knobs back on monitors. at least for sound settings on monitors (with 3.5mm outputs)
Nice video! Do you know by any chance which 286 motherboard is compatible with my 286 25MHz cpu? The “Harris”.
A 286 motherboard. Can't be more specific than that really, since they're so rare these days. If you're hunting for one, make sure you look for one that matches the socket your CPU uses.
Hmm, I recalled that it is not even necessary to block the hole on a disk but just to format it as DD, especially if the drive don't support HD. On the other hand recalling HD disks formatted into DD tend to become unstable more easily than real DD floppies. Memory is like those old hard drives though - there tend to come faults after all those years. Unfortunately I don't currently have any working PC with a 3.5" 720k drive, so can't check either. Unless if the Tandy drive behaves somehow different.
been using those compact flash to IDE adapters for a while and they are great! As much as i like the sound of the old hard drive, they will fail one day
Indeed they do ... although I did find the 5.25 inch MFM drives to be reasonably reliable .... the 3.5 inch ones I've had less luck with, and even modern sata drive tend to fail every now and then ....
I have a compaq (pressario) laptop and after the 4th not working adaptor I gave up.... goes 50% 50% between compact flash and SD adaptors please, can you explain if you followed anything special to make the BIOS read it as an HD?
Polikarpov Mosca the xt ide card has a universal bios in rom that is loaded on startup. The computer bios doesn’t come in the picture here. The computer is just responsible for executing the xt ide bios on startup.
@@RetroSpector78 Thanks for the reply. Sadly that means I won't be able to use them for my laptop? I am a bit reluctant of buying a fifth one
@@Vlad-1986 hi - did you try fdisk /mbr on the sd/cf from which you wish to boot ? take care & stay safe
I had a Tandy 1000 TL/2 as a kid, do you know if running DosBox in Tandy mode a reasonable way to replicate that experience?
Have you tried to low level format the drive before ? You need a software or most cards have an integrated formater that you can use.
LLF through the western digital card also failed. So I guess the drive is pretty much dead. Before I was able to see a directory listing but had lots of seek errors and bad sectors :(. On a brighter note, xt-ide works great and I also have a Tandy 1000 SL/2 and that one contains one of those hard cards. Excited to try that one out.
#happyseptandy
Thx ... but will release some other tandy stuff in the upcoming days also.
I would appreciate if you make video from macintosh computers
I loved the fact that you actually attempted to use a standard MFM hard drive. I had one of these with an integrated Hard Card. By the time this computer was manfactured SCSI was in regular use. Is there a reason why you couldn't use a SCSI-1 hard drive and controller?
Simple fact that I didn’t have one. Have only 16 bit scsi controllers. I did found a hard card in my Tandy 1000 sl/2 that was also sitting on a shelf (stupid of me not to have opened that one). Will show it in a future part.
@@RetroSpector78 Well thanks again. Since SCSI was only invented in 85, and I believe this was shipped in '88 I'd be curious to see that work.
It should work... but unfortunately don’t have the hardware to try it :(
@@enjoythepig SCSI was pretty expensive though, wasn't it?
@@BlackEpyon I just checked and in the 1989 Radio Shack catalog a 40mb Hard Card was $799, and was very unreliable, and since there was no USB then, SCSI was vastly superior. But either option for this low end of a system, was probably overkill.
If you'll have a problem with booting from SD-card try fdisk /mbr
I had to use diskpart on my Windows 10 machine to get the cards fully cleaned before I could format them on the destination system. Once it's formatted in the destination system, it's easy to swap files.
seems like some of their design ideas were ahead of ibm.
Could you please check if the power supply can be switched for 220V to 110V ?
izdebo there is no switch, and there is a sticker on the back that indicates this is a 220-240v model. So I don’t think you can switch it.
RetroSpector78 yes I know, but sometimes there is „switch” directly on PCB ;)
Unfortunately didn't pay that much attention to it when I opened it up. The documentation mentions 2 types of PSUs , a single input and a dual input PSU. You'll need to wait for part 2 then ... will take a closer look :)
I believe that power button is upside down...
can the tandy 100 TL be upgraded to use standard 1.44 mb floppies? And to use IDE hdds? It'd make it much easier to upgrade. But idk how much of a problem that OS has with those types of drives/controllers.
I think you will end up with multiple problems .... the floppy drive is powered through the floppy cable, so you would need to rewire the pins on your replacement floppy. (there are no 1.44mb floppy drives that tandy produces for this PC). Next is that the built-in DOS version will not be able to copy with 1.44mb floppies. You could in theory hook up a separate 8 bit floppy controller that supports 1.44mb drives, but you'll end up with software compatibility issues (for example the format command will not work). So it's not really worth the hassle IMHO. If I need a disk I just create a 720kb one, and the rest is done via the XT-IDE (plug and play solution). The computer does not have a built-in IDE controller, so would need to find some kind of 8 bit IDE controller with compatible hard drive (or a hard card). Both will not be easy to find.
@@RetroSpector78 Didn't know about that, was just hypothetical And there may be aftermarket solutions for both (just would need a converter board technically for a easier way than rewiring it)
patg108 saw similar things with ibm ps/2 machines and haven’t found any adapter boards for those either. It’s all a lot of DYI work (cutting traces, rewiring pins....)
@@RetroSpector78 Might simply be more obscure
Yes, the TL can use standard 1.44MB floppies, but you will need a floppy controller on an expansion card, the built-in floppy controller can't work with 1.44MB floppies, but it can be disabled. You can use an IDE HDD, but you will need a more capable card than that shown in the video.
Also, do you know what it takes to network these things? (I do.)
ZombieRyushu haven’t looked into it yet. Have a couple of 8 bit 3com cards and some 16 bit cards that work in my IBM pc xt. I suppose these are an option. MS network client 3.0 or mTCP as software stack.
@@RetroSpector78 The 8 bit cards will work, but you don't want to try using Samba. It's extremely insecure, and difficult to setup an NT Domain that it will accept. A better way is to setup NFS with XFS 1.91 on the Tandy.
Is at least memory bus 16-bit?
I'm pretty sure there is a 16-bit memory data bus on the mainboard where up to 768kb of ram can be addressed. but any expansion beyond that would have to go over the 8-bit ISA expansion slots. Also, due to the size limitations of the case, one cannot add most common memory expansion cards anyway. I think you'll always have this mix of XT style computing with a more "modern" AT style 286 cpu. But it remains a very cool machine and enjoyable experience if you know the limitations and don't try to force your way around them.
@@RetroSpector78 Thanks. If your are going to deal with the machine further, the benchmarks will show the width of memory bus.
What size of SD-card can you use with it? 4GB limit?
I think this was indeed a 4 gb SD card .... Had little to no success with the larger ones
@@RetroSpector78 With MS-DOS 4.0-6.22, keep your hard disk partitions to 2GB or less.
@@NerdlyPleasures Correct ... but I think the OP was referring to the total size of the SD-card itself. I never had any modern SD cards of CF cards work with an xt-ide setup. I always had to use
I don't bother looking for any cards larger than 512MB. On a system like this, it's rare that you'll be able to use it all anyways.
How much did you pay for it? I find it hard finding anything Tandy for a decent price in Europe.
This one was 40 euro with the keyboard but without the monitor .. the orignal owner's wife threw it out by accident :(
@@RetroSpector78 40€?? Where?
@@SeltsamerAttraktor To throw some salt in the wound. I bought a SL,a TL, original monochrome and color monitor, 2 keyboards,mouse and joystick for around 170€
That's a good deal ... Also have a complete SL with monochrome and keyboard, but getting stuff like the monitor and joystick separate is near to impossible.
@@SeltsamerAttraktor Belgium
I own one of these, these don't work with MFM RLL Hard Disks,. they used a special XT IDE Hard Card.
Why would this not work with an mfm controller card + hard drive ? (It should).IDE drives is a different story.
@@RetroSpector78 The BIOS in this generation of 1000 Series Tandy is extremely unusual. When I say the drive for these computers uses XT-IDE, I mean at one time, there actually was a Hard Drive Standard called XT-IDE that was completely different from what we normally called IDE. It was a standard only really supported by Western Digital.
@@RetroSpector78 Some other things you need to know. If your machine says that it has 640 K, It really only has 576 K Usable. To get the full 640K out of it, you need to populate those four open chips.
I know about the memory layout + video memory assignment ... more on that in part 2. But I am 99% sure that this machine works with a standard MFM controller + MFM hard drive. As you can see in the video I was able to partition and format the drive with an MFM controller + MFM hard drive (albeit that the drive was defective, but I get the same thing with this drive in another PC). www.oldskool.org/guides/tvdog/1kfaq.html#II.D.1 also mentions that "The 1000SX, TX, SL's, and TL can use most standard 8-bit hard drive controllers" and "most any MFM or RLL controller will work." I know that the TL/2 has a built in XT-IDE interface, but this one relies on an external card / interface to hook up a hard drive. I will try to double check but don't have any spare 3.5 inch MFM drives here (they all tend to break)
@@RetroSpector78 certain controller cards do work, but I have two of the strange hard drives the TL used.
Also you can install VGA And a network card. I have EMS Ram installed on mine.