You can get a Composite Video Board from a seller in Canada on Ebay: https://www.ebay.ca/itm/124844441452.
Check it out.
Search found 14 matches
- Thu Apr 13, 2023 11:35 pm
- Forum: Hardware
- Topic: How to tell which ULA
- Replies: 12
- Views: 1924
- Mon Feb 20, 2023 9:44 pm
- Forum: WANTED
- Topic: Timex sinclair interfacing
- Replies: 7
- Views: 6559
Re: Timex sinclair interfacing
Check it on Ebay https://www.ebay.ca/itm/155118322890
Good luck
Good luck
- Fri Mar 25, 2022 4:13 pm
- Forum: Hardware
- Topic: 5 volt regulators
- Replies: 4
- Views: 1287
Re: 5 volt regulators
Look at the datasheet. No heatsink required.
https://docs.rs-online.com/7da4/0900766b813d7b6b.pdf
https://docs.rs-online.com/7da4/0900766b813d7b6b.pdf
- Sun Oct 03, 2021 6:10 pm
- Forum: Hardware
- Topic: Which video mod for composite?
- Replies: 43
- Views: 9492
Re: Which video mod for composite?
I think you have a 100K ohm resistor connected to the Emiter instead of a 100 ohm resistor.
- Wed Nov 25, 2020 12:28 am
- Forum: Software
- Topic: Pascal for ZX81
- Replies: 71
- Views: 21706
Re: Pascal for ZX81
Here is some info about it:
http://pages.cpsc.ucalgary.ca/~tamj/200 ... _intro.pdf
and this:
http://brahms.emu.edu.tr/babagil/Pascal ... enotes.pdf
http://pages.cpsc.ucalgary.ca/~tamj/200 ... _intro.pdf
and this:
http://brahms.emu.edu.tr/babagil/Pascal ... enotes.pdf
- Sun Nov 22, 2020 7:45 pm
- Forum: Hardware
- Topic: Attic 81's - My collection and attempts to repair
- Replies: 51
- Views: 13219
Re: Attic 81's - My collection and attempts to repair
The M55117P is a 2K X 8 static ram.
Datasheet at https://datasheetspdf.com/pdf-file/1110 ... M5M5117P/1
Datasheet at https://datasheetspdf.com/pdf-file/1110 ... M5M5117P/1
- Tue Sep 01, 2020 12:41 am
- Forum: WANTED
- Topic: ZX81 ULA or ULA Replacement
- Replies: 12
- Views: 14470
Re: ZX81 ULA or ULA Replacement
Where did you find it?
- Mon Aug 03, 2020 8:30 pm
- Forum: Hardware
- Topic: Tape Loading Inconsistency Trouble
- Replies: 6
- Views: 3285
Re: Tape Loading Inconsistency Trouble
I used this circuit in the past and it work fine.
- Thu Mar 26, 2020 9:44 pm
- Forum: Hardware
- Topic: ZX Spectrums problems : diagnostic software ?
- Replies: 123
- Views: 63591
Re: ZX Spectrums problems : diagnostic software ?
This the very same for Canada. I live near Toronto, Ontario Canada.
It is difficult to have to stay home as we are over 70 of age.
Fortunately we have a son that can help when needed that live close by.
Stay safe and in good health.
It is difficult to have to stay home as we are over 70 of age.
Fortunately we have a son that can help when needed that live close by.
Stay safe and in good health.
- Sun Mar 15, 2020 3:53 pm
- Forum: Sinclair Misc
- Topic: Saved programs too noisy
- Replies: 13
- Views: 19838
Re: Saved programs too noisy
Any update on your problemCarolineZX81 wrote: ↑Sat Feb 22, 2020 9:40 pm Hi Xavsnap.
I will adjust the volume setting and see if that helps!
Thanks