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Atari 1040 STF


I found an Atari 1040 STF listed on eBay under the descriptive title "Computer". It was cheap, looked grubby and figured it was worth buying to see if it could be cleaned up, recapped and moved on to a good home.



Finally got around to finding the broken home-made RGB cable, one I made a few years back that got damaged at some point. After reconnecting a few wires to pins I tried it out and it worked first time, albeit with a tiny bit of visible ghosting. So I know now that the STF is working well, and the floppy drive seems to have camled down too and works as expected.

Entire view of the screen
Close up of a smaller area

Next step for this machine will be to open it up and find out PSU is in there so it can be recapped using an Exxos kit, and then a good deep clean. Having had my STE on the desk for a while hooked up using composite, I had genuinely forgotten just how crips the RGB output is, and how good it looks a nice CRT.


Got around to digging out the ST Monitor port to VGA cable that I put together a few years ago. Plugged it in and sure enough the STF boots to the desktop fine (mono mode, I don't have a 15KHz capable monitor for Low or Medium res. The floppy drive makes some pretty horrible sounds while booting so need to verify whether or not that works. It's been replaced in the past and the case cut, if the drive has failed it'll likely make a good candidate for a floppy replacement like a Gotek or similar.

Rather yellow Atari 1040STF

Booting from my UltraSatan works without any issue which is good, though UIPTool with the NetUSBee doesn't seem to want to transfer anythign right now despite the web UI being visible on the network ok.

Atari 1040STF Running sysinfo.tos

As expected the machine runs TOS 1.04, and I believe it to be quite an early model from some of my reading as it has red LEDs for both the power and the floppy drive, which look surpisingly cool to me as somebody who's always been used to the green/amber options on the ST line.

It's been an Atari heavy night as I've also been playing more with the SDrive-Max with one of my 8 bit machines, though that update will have to wait for tomorrow.


It's on my desk, not sure if video out works yet as my RGB cable needs repairing and the STF doesn't output composite/s-video over it's monitor port. Turns out it's not very grubby, but it is very yellowed. A brief test using an Atari diagnostic cart and serial cable showed the machine to be alive with good ROM/RAM.