Search found 2758 matches

by Dave
Wed Sep 13, 2023 7:34 pm
Forum: Hardware
Topic: ql printer printhead search
Replies: 5
Views: 755

Re: ql printer printhead search

The SP800 head is compatible. The flex PCB ribbon is slightly different on some revisions but it is easy to swap them with a soldering and middle school soldering skills. The SP1000 head also works, but the ribbon is longer and always needs swapping. So if you check your flex ribbon is OK before ord...
by Dave
Wed Sep 13, 2023 7:27 pm
Forum: For Sale
Topic: ROM, 512k RAM, felt pads + VGA
Replies: 27
Views: 24120

Re: ROM, 512k RAM, felt pads + VGA

It will work if you’re using any ROM except JSU.
by Dave
Wed May 31, 2023 8:10 pm
Forum: Hardware
Topic: - solved - hermes remake or diy solution ( for the classic version )
Replies: 16
Views: 2393

Re: hermes remake or diy solution ( for the classic version ) - solved -

How difficult would it be to port the MCS48 code to the MCS51 family? As a former Silicon Labs contractor I can supply as many SiLabs 8051 as anyone would ever want.
by Dave
Tue May 23, 2023 6:19 pm
Forum: Hardware
Topic: - solved - backplane info search
Replies: 15
Views: 2837

Re: ql backplane info search

M.K. if all is right with the world would be Marcel Kilgus.
by Dave
Tue May 16, 2023 12:04 am
Forum: Hardware
Topic: Voltage regulator board?
Replies: 7
Views: 3727

Re: Voltage regulator board?

This looks like a board Sandy fitted to a few systems in 1984.

They're horrible and should not be used. We stopped using them as soon as we got customer feedback.
by Dave
Wed Mar 22, 2023 6:04 pm
Forum: The Welcome Area
Topic: Hello from Ireland
Replies: 3
Views: 4916

Re: Hello from Ireland

Welcome.

As for QL repairs? I'm all for it myself. :D
by Dave
Thu Mar 16, 2023 5:38 pm
Forum: Compatibles Corner
Topic: Sandy Keyboard Interface, appeal
Replies: 22
Views: 15433

Re: Sandy Keyboard Interface, appeal

I don't know if that is correct. Sorry :(

Instead of a text description, maybe you need to create a schematic?
by Dave
Sat Mar 11, 2023 5:03 pm
Forum: Compatibles Corner
Topic: Sandy Keyboard Interface, appeal
Replies: 22
Views: 15433

Re: Sandy Keyboard Interface, appeal

It’s good to have the fuse map, but it sure would be nice to reverse engineer the equations.
by Dave
Wed Mar 01, 2023 6:58 am
Forum: Compatibles Corner
Topic: Sandy Keyboard Interface, appeal
Replies: 22
Views: 15433

Re: Sandy Keyboard Interface, appeal

I wasn’t involved in the design or build of the keyboard interface. I would love to reverse engineer it and see if it could be adapted for more modern keyboards - which should be a trivial matter.
by Dave
Wed Mar 01, 2023 6:55 am
Forum: Hardware
Topic: My QXT640 thread
Replies: 22
Views: 3669

Re: My QXT640 thread

SPEM supplied a fair amount of stuff to Sandy. Most of it was decent ideas implemented fairly ok but of very very poor quality construction.