Search found 3972 matches

by Derek_Stewart
Wed Jun 29, 2022 4:28 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6793

Re: New Q68 Case

Hi Dave, The cases have slots to support the Q68 PCB, which in the current case the Q68 is in the bottom slot. I can change the location of the Q68 board to suit. If an expansion board is located in the bottom slot and the Q68 above the expansion board, how much head room for the expansion board is ...
by Derek_Stewart
Wed Jun 29, 2022 1:23 pm
Forum: Hardware
Topic: New Q68 Case
Replies: 45
Views: 6793

Re: New Q68 Case

Here is a CAD representation of the current Q68 End Plates and the proposed larger Panels: Q68_Panel_Comparison.png The is 15mm height increase to accommodate the QL Network and i2C on the Back Panel. The new case is dimensional the same size, except for an increase in 15mm of height. The new panels...
by Derek_Stewart
Tue Jun 28, 2022 1:49 pm
Forum: General QL Chat
Topic: Advanced QL User Guide
Replies: 50
Views: 23925

Re: Advanced QL User Guide

Hi The pdf book on WOS, Spanish QL archive all break Copyright. But I doubt that Adder Technology would think it is worth their time to enforce the Copyright. I scanned my version from my copy of the book. I am just trying to do things correctly. There are many errors in the original book, which hav...
by Derek_Stewart
Tue Jun 28, 2022 9:34 am
Forum: General QL Chat
Topic: Advanced QL User Guide
Replies: 50
Views: 23925

Re: Advanced QL User Guide

Hi, A little progress, I entered a comment on the Adder Technology LinkedIn page, and the Global Marketing Director contacted me and gave me the email address of the Executive Assistant to Adrian Dickens. I sent the request of a review of Copyright status of the book and the copies of the work I hav...
by Derek_Stewart
Mon Jun 27, 2022 9:58 am
Forum: Hardware
Topic: Microdrives not working and now neither oqtadrive
Replies: 18
Views: 3294

Re: Microdrives not working and now neither oqtadrive

Hi,

If the link wire is not installed, does that mean, the Oqtadrive can not be mapped as MDV1 or MDV2, only being able to use MDV3-MDV8?
by Derek_Stewart
Sat Jun 25, 2022 7:47 pm
Forum: For Sale
Topic: FS: Tetroid Rom Switcher
Replies: 1
Views: 1199

FS: Tetroid Rom Switcher

For sale : Sinclair QL ROM replacement - ROM switcher. Version 2 with external switches. This ROM switcher has 512Kb ROM , that allows to have 8 pages for 8 ROM images. ROM switcher has 4-position switch, 3 switches ( SW1 - SW3 ) for select the ROM image. SW4 switch adds ROM area C000 - FFFF ( for e...
by Derek_Stewart
Sat Jun 25, 2022 9:15 am
Forum: General QL Chat
Topic: Advanced QL User Guide
Replies: 50
Views: 23925

Re: Advanced QL User Guide

HI, Thank you for the information. I have posted a comment on LinkedIn, on the Adder Technology company page on the most recent posting, maybe off-topic. But it is the only way to enter a message to anyone on LinkedIn, without paying £79.99 monthly fee. I have also send message via their Company Pro...
by Derek_Stewart
Fri Jun 24, 2022 11:31 pm
Forum: Hardware
Topic: QLUB Adapter - Initial Release...
Replies: 214
Views: 102266

Re: QLUB Adapter - Initial Release...

Chr$ wrote:Just noticed the Teensy 2.0++ is discontinued.

https://www.pjrc.com/store/teensypp.html
I bought, 5 on Aliexpress, less expensive than PRC, all work okay.

I will have to get the 5 PCBs I have built and get some cases 3D Printed.
by Derek_Stewart
Fri Jun 24, 2022 10:02 pm
Forum: General QL Chat
Topic: Advanced QL User Guide
Replies: 50
Views: 23925

Re: Advanced QL User Guide

Hi,

The book was published by Adder Publications.

Adder Publishing began in 1984 and was rebranded as Adder Technology in 1986.

So does the rebanding transfer the copyright to the new company brand

The details of Adder Technology are detailed on their web site:
https://www.adder.com/en/about-us
by Derek_Stewart
Fri Jun 24, 2022 4:02 pm
Forum: Hardware
Topic: Q68 Expansion Card
Replies: 3
Views: 958

Re: Q68 Expansion Card

:o I can think of a few things that mostly just involve some signal conditioning: QL Network ports I2C buffered/isolated outputs to protect the Q68 from unintended accidents by experimenters Another Serial port - perhaps as RS422/3 - as there are some interesting things that can be plugged into this...