Search found 342 matches

by dessony
Wed Sep 07, 2022 10:23 am
Forum: Hardware
Topic: [elektor] Signal cleaner.
Replies: 8
Views: 1771

Re: [elektor] Signal cleaner.

XavSnap,

Excellent! :-)

https://worldradiohistory.com/UK/Elekto ... 984-10.pdf

Look for this certain information: pages 10 - 45 to 47

Cheers,
DesSony
by dessony
Wed Mar 16, 2022 3:37 am
Forum: Hardware
Topic: Need help reverse engineering Timex Store Demonstrator ROM file
Replies: 77
Views: 15417

Re: Need help reverse engineering Timex Store Demonstrator ROM file

XavSnap,

Good job creating a certain folder. However, where is a bill of material (parts listing) for the Timex Demonstrator ROM?

Thank you very much in advance.

Cheers,
DesSony
by dessony
Sun Oct 03, 2021 1:54 am
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

1024MAK, I tried my best to help Dukes909 with his computer. I recognized that you know the history of ULA better. I also supplied your video transistor buffer amplifier circuit with a stripboard to this gentleman. I knew about a printed circuit board based on your VTBAC. :-D Thank you very much in ...
by dessony
Sat Oct 02, 2021 2:20 am
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

Great! I am eager to know the result from you! :-D

As for the stripboard, Track, with its two end arrowheads, means copper strips. Is my artwork clear to you?

DesSony
by dessony
Sat Oct 02, 2021 2:05 am
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

Great! And don't forget the stripboard, too!

DesSony
by dessony
Sat Oct 02, 2021 1:28 am
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

No, You leave the ULA chip alone. You are fine now! :-D There are 3 versions of ULA. The first two ULAs are buggy because they don't have their back porches feature yet. The final version [2C210E] had its back porch feature. 1024MAK has his better explanation on these ULAs' details somewhere on this...
by dessony
Sat Oct 02, 2021 12:17 am
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

Dukes909, The good news, you don't need to be concerned about installing zigg.net 555 mod on your computer! You'll be fine with the 2C210E ULA's back porch "stairway" wave presence! :-) I do have a 1024MAK's mod with my stripboard design on one of the forums. Please don't hesitate to get in touch wi...
by dessony
Sat Oct 02, 2021 12:05 am
Forum: Hardware
Topic: [48k 4A] Missing sync / empty screen
Replies: 9
Views: 2496

Re: [48k 4A] Missing sync / empty screen

I encourage you to find a schematic and a service repair manual for your computer. That is how I found my TS2068 service repair manual (SAMS Computerfact CC19). This manual is already posted here somewhere in the forum as a PDF file.

Thank you very much in advance.

Cheers,

DesSony
by dessony
Fri Oct 01, 2021 11:34 pm
Forum: Hardware
Topic: Which video mod for composite?
Replies: 43
Views: 9400

Re: Which video mod for composite?

Dukes909,

Can you post a picture of the ULA here? The picture will help us determine whether you need a zigg.net 555 mod.

Thank you very much in advance.

DesSony
by dessony
Thu May 13, 2021 5:11 am
Forum: Hardware
Topic: Something Interesting
Replies: 6
Views: 2414

Re: Something Interesting

I have this exact product similar to this one! It is helpful whenever it shows the sound level supposed to be by it two LEDs!

DesSony