The Sinclair QL Forum

The ports on the German/US QL have tiny numbers on them, check with a magnifying glass. When you look into the SER1/SER2 from the outside - pin 1 is top right, pin 5 is top left, pin 6 is bottom right and pin 9 is bottom left.

I renamed this post since I came across another odd hardware item that I'm trying to track down. Saw this picture on a Reddit post.


fd.png


https://www.reddit.com/r/EngineeringPorn/comments/ga9tsq/tiny_laptop_floppy_drive_disk_for_size_comparison

I've been trying to track it down but so far ...

Hi Chr$!
Thanks for that! That surely helps!

I already have the boards, so I will mod them according to the pictures in the other thread.
And I might order a few new ones if Alvaro made the changes. I will check his GitHub.
You also mentioned his dimensions were slightly off.
Alvaro, great job ...

Couple more (limited to 5 pics per message).

I was planning to order a few of the Kludge boards designed by Alvaro. Seems like he has done a neat job. Chr$, did you verify that the dimensions are close enough to the original?

I bought a vacuum former a while ago and I would like to make some casings as well. Unfortunately I don't have an ...

Finally made and tested. It doesn't work, then I checked and even removed the LS00 socket from the real one just to make sure. The traces under it aren't right. Here is a pic of a real one (top) and your reproduction.

20250423_212045.jpg

The trace that goes all the way from 2B on the edge ...

I wonder if it's old electrolytic cap problems on the drive PCBs, they can go bad with age and that may well result in it not spinning (and other potential faults).

In the past I've dremelled out the resin/epoxy and put in a new battery under the red square lid. It's tricky and you have to be very careful, but can be done.

Got it, yes it's the same as the uncorrupted version I got hold of.

t0nyt wrote: Sat Mar 29, 2025 3:49 pm Success!

I stripped it back to a BBQL and it went to the blue screen again but this time I saw a lot of mdv access and after a while the game started

Shall I send the ESC file over?

Many thanks

I do have a correct ESC file but I certainly wouldn't mind seeing yours to see if they are the same.