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Re: Improving Timex/Sinclair Tape Loading

Posted: Sun Feb 11, 2018 8:29 am
by Lardo Boffin
TMAOne wrote: Sun Feb 11, 2018 4:33 am I never make mistakes. Once I thought I'd made a mistake, but it turned out I was wrong. :P

Seriously though, I'm glad to hear another dubber is on-line. Can't wait for Lardo to turn it loose on those "unrecoverable" tapes and see how many can be rescued.
It will probably be May before I can try anything. :cry: Most of the stuff in my house is going into storage while I move. Argh.

Re: Improving Timex/Sinclair Tape Loading

Posted: Sun Feb 11, 2018 10:18 am
by sirmorris
Well I assume the thing's working, but I admit it's only by trial - I haven't scoped anything out. I notice that I can make the LED light if I poke my fingers near certain components - I guess it's quite finely tuned?

* update - and a flick turns it off and on again. I think there's a screw loose. The board might have a fault too.

* update (2) - it's the cable. Sigh. Broken or intermittent conductor.

Re: Improving Timex/Sinclair Tape Loading

Posted: Sun Feb 11, 2018 11:12 am
by sirmorris
Sinclair games tape 1 - no hope for this.

Input at the top in yellow, output belue.

NewFile6.png
NewFile6.png (8.09 KiB) Viewed 6248 times
NewFile5.png
NewFile5.png (8.3 KiB) Viewed 6248 times

Others though - outlook is good. In order we have 3Dmm, Zuckman, ZXAS
NewFile0.png
NewFile0.png (7.49 KiB) Viewed 6248 times
NewFile2.png
NewFile2.png (8.1 KiB) Viewed 6248 times
NewFile3.png
NewFile3.png (8.05 KiB) Viewed 6248 times


It'll be interesting to compare to another working board.

Re: Improving Timex/Sinclair Tape Loading

Posted: Sun Feb 11, 2018 6:03 pm
by gammaray
That is a big difference. Is there a program to manually construct a file based on a human visually inspecting the original file and losing a week of his life.

8
4
8
8
4
8
.
.
.
8
5
8
BKSP
BKSP
4
8
...

Re: Improving Timex/Sinclair Tape Loading

Posted: Tue Feb 13, 2018 7:16 pm
by XavSnap
:?
Windows...
http://dskcenter.free.fr/TO7/tutok7/

(note: a "ctrl+left click" can redraw a beep, directly on the wav on the top board of the window)

Re: Improving Timex/Sinclair Tape Loading

Posted: Fri Mar 02, 2018 8:58 am
by Lardo Boffin
1024MAK wrote: Sat Feb 10, 2018 2:53 am
Lardo Boffin wrote: Wed Feb 07, 2018 11:31 am Stuff on its way to Mark and Sir Morris. Enjoy!
@Lardo Boffin
Box of bits has arrived! :D

Thanks 8-)

Mark
Hi Mark

Just wondering if you have had chance to look at my mess, sorry dubber attempt to see where I went wrong?

Many thanks

Lardo

Re: Improving Timex/Sinclair Tape Loading

Posted: Fri Mar 02, 2018 3:14 pm
by 1024MAK
Planned for this Saturday...

Been busy with work and snow clearing...

Mark

Re: Improving Timex/Sinclair Tape Loading

Posted: Fri Mar 02, 2018 3:57 pm
by gammaray
What is snow?

Oh yes, I dimly remember snow in Texas in 1969, 1981, 1989, 1998.

We get it about once every 10 years whether we need it or not. And some people get their car replaced at the same time...

Re: Improving Timex/Sinclair Tape Loading

Posted: Sat Mar 03, 2018 10:21 am
by Lardo Boffin
1024MAK wrote: Fri Mar 02, 2018 3:14 pm Planned for this Saturday...

Been busy with work and snow clearing...

Mark
No worries. Know what you mean about the snow. Nearly three hours to do 25 miles. That will teach me to own a BMW. :cry:

Re: Improving Timex/Sinclair Tape Loading

Posted: Sat Mar 03, 2018 11:14 pm
by 1024MAK
So after looking at it for far too long, I discovered a big problem. It was staring me in the face.

So can anyone tell me what is wrong in this picture:-
CPC part number SC13781
CPC part number SC13781
(The IC pictured came out of the bag in the photo with the CPC part number).

Mark