Search found 337 matches
- Tue Apr 25, 2023 8:19 am
- Forum: Hardware
- Topic: 128k 6U sound issue
- Replies: 1
- Views: 1406
Re: 128k 6U sound issue
Check if 1.79MHz clock coming to the PSG.
- Sat Apr 08, 2023 8:08 pm
- Forum: Z88
- Topic: Diagram for making your own cartridges?
- Replies: 15
- Views: 16913
Re: Diagram for making your own cartridges?
Well done!
- Wed Feb 22, 2023 11:57 am
- Forum: Hardware
- Topic: Romantic Robot Videoface Digitiser (clone)
- Replies: 5
- Views: 2400
Re: Romantic Robot Videoface Digitiser (clone)
Hi,
Have a look at my GitHub here: https://github.com/McKlaud76/VideoFace
I have got some spare PCBs. So if you are interested, feel free and send me a PM.
Cheers,
Have a look at my GitHub here: https://github.com/McKlaud76/VideoFace
I have got some spare PCBs. So if you are interested, feel free and send me a PM.
Cheers,
- Fri Feb 17, 2023 8:11 am
- Forum: Development
- Topic: ZX81 audio.
- Replies: 31
- Views: 5099
Re: ZX81 audio.
It might be an overkill but AD makes/made some interesting D-A converters like: https://www.analog.com/media/en/technical-documentation/data-sheets/ad7228a.pdf or https://www.analog.com/media/en/technical-documentation/data-sheets/AD7801.pdf The second one might be an alternative to the ancient ZN42...
- Wed Dec 07, 2022 7:08 am
- Forum: Hardware
- Topic: zx spectrum omni
- Replies: 2
- Views: 1742
Re: zx spectrum omni
And a pinch of salt:
https://www-speccy-pl.translate.goog/fo ... p#msg69632
I have got also the newest Issue 4 but just the board. I can say that the assemble quality improved.
https://www-speccy-pl.translate.goog/fo ... p#msg69632
I have got also the newest Issue 4 but just the board. I can say that the assemble quality improved.
- Wed Dec 07, 2022 6:59 am
- Forum: Hardware
- Topic: ¿A Jupiter Ace clone kickstarter?
- Replies: 6
- Views: 3573
Re: ¿A Jupiter Ace clone kickstarter?
@wilco2009: nice one and replied to your queries in the survey.
- Fri Sep 30, 2022 9:45 pm
- Forum: Hardware
- Topic: ZX81 kit assembly
- Replies: 28
- Views: 16521
Re: ZX81 kit assembly
But please be precise, the quantity was "fully loaded three 40-foot shipping containers"
- Wed Sep 21, 2022 2:58 pm
- Forum: Hardware
- Topic: Romantic Robot Videoface Digitiser (clone)
- Replies: 5
- Views: 2400
Romantic Robot Videoface Digitiser (clone)
Hi All, Just wanted to let you know that completed testing my clone of Romantic Robot Videoface Digitiser for ZX Spectrum. It works as it should, can capture PAL or SECAM composite signals and can save up to 6 capture screens on tape, microdrive or disk. Interesting toy and ti was a fun with recreat...
- Thu Jul 14, 2022 3:47 pm
- Forum: Hardware
- Topic: Timex 2048 only 16k
- Replies: 49
- Views: 12158
Re: Timex 2048 only 16k
This is the Timex 2068 'homebrew' ic kit I saw, but it doesn't bear any resemblance to the Timmy project and I couldn't find out any details about which PCB it uses; https://www.ebay.com/itm/114968713354?hash=item1ac4ab588a:g:musAAOSwjZ9hMif~ The seller offers in the kit: Z80 CPU .....DIP40....2pcs...
- Thu Jul 14, 2022 6:38 am
- Forum: Hardware
- Topic: Timex 2048 only 16k
- Replies: 49
- Views: 12158
Re: Timex 2048 only 16k
All DRAM used in any TC2048 or TC2068 is a single voltage and 4-bit type. TC2048 with PCB rev 5 can have the upper RAM built in two variants: 1. 4416 DRAM x 4 chips = 2 x 16K 2. 4464/41464 DRAM x 2 chips = 1 x 64K On the rev 5 board there are places for additional two diodes and resistor forming OR ...