The Sinclair QL Forum

If your QL has Toolkit 2, you could use the COPY_H extension to force copying of a header. Or COPY_N to force copying without a header, e.g. if copying to a printer where any header bytes might accidentally act as control codes to put printers in random modes and spoil the listings. This is very in...

Hi everyone, I recently built a serial cable for Sinclair QL and I'm trying to understand how to juggle the binary files of my QL and how to transfer the latter from the PC to the QL while keeping the header of these files intact. I know it's a much discussed topic online and there are many suggesti...

tofro wrote: ↑Thu Jun 15, 2023 5:20 am Note that mdv2_ will not start up on boot in any case, when it stays silent, that's normal.

It should, however, react to commands.

So is the fact that the LED doesn't turn on when starting MDV2_ also normal?

Hi guys, today I finally had some microdrive cassettes to test on my Sinclair QL. However, I noticed that at start-up, only MDV1_ has the LED light up, while MDV2_ has no LED light and you don't hear the engine running (for testing) during start-up. I did some reading tests with MDV1_ and it works c...

Originals are as rare as hen's teeth & expensive so I wouldn't bother. The main advantage of getting an original PSU is it plugs in without modifying the computer but if you have a QL plug any PSU with suitable voltages is fine. This is the power supply I have for my QL. Today I drilled a hole ...

7V on the DC end might in fact be a little tight (7V is the minimum the 7805 needs to create the internal 5V). But that's rather the "might not work under heavy loads, but won't break anything" end. The AC end seems fine to me. Thank you. This can give me peace of mind until I find an ori...

Maybe use a light bulb or something to put a load on the power supply. I'd avoid trying the QL because if the power is indeed too high, you'll damage something. Actually the guy who sold me the transformer already has two QLs both powered by the same transformers. He reassured me that he built thes...

Did you put a load across the pins when taking a measurement? The 7.5V means you will waste less heat on the 5V regulator if it works. The 18.5V is a bit high so damage might occur eventually due to continuous over stressing components. My no load measures Red 11V DC & Blue 16.6V AC This aftern...

XorA wrote: ↑Mon Jun 05, 2023 10:11 am There is an Italian contingent around these parts!

https://sinclairql.wordpress.com/author/ranmasimon/

Maybe your lucky and they are near!

Thank you!

Hi again guys, I just introduced myself in the Wellcome section. As I said I'm a new user of a Sinclair QL, I'm waiting for a new keyboard membrane from sellmyretro which will arrive in days. Meanwhile a neighbor of mine gave a homemade PSU. Connecting it to my QL I see the menu screen correctly, bo...