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48K misplaced coloursHello to everybody! Slowly recapping a otherwise working Issue 6A 48K. All new caps aroud LM1889, 7805 and DC-DC converter, which improved ripple an…
... . Still have to change C28 (ULA smoothing capacitor). However, there are ... -
Spectrum sometimes boots with graphic issuesA while ago, my Spectrum 48K (issue 3B) broke down after fiddling with a brand new joystick interface in combination with DivIDE. Today I tested the …
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I tried to swap ULA with my otherwise broken Spectrum ... -
Wanted: ZX81 caseJust found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full worki…
Just found my old Issue one ZX81, ULA type 8120 (no other markings on the chip). Looking for a case to put it in and hopefully restore to full working order.
Cheers guys -
QL microdrive units (x2)Found two old microdrive units I ripped out of a QL many moons ago. Just the bare units, no fancy cases etc. I have NO idea if they're any use for …
... if they work.
ULA 2G007E, 8344 date code on ... one, ULA 2G007E date code 8348 on ... -
Issue 6 repair with a twist...(Starting with a slight grump - the forum ate my first attempt at this so this'll probably end up being a bit terse :)) I got a Issue 6 48K machine …
... I started wondering whether the ULA was flaky, or if there ... -
JHCon 2014Hello, not sure if this is the right category but JHCon 2014 will take place[B] from 28. to 30.11.[/B] at usual place - gymnasium in Jindrichuv Hrad…
... modes of TC2048/2068 PAL ULA
--- add a proper Basic ... -
Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
... tests passed, keyboard, RAM, ROM, ULA, IRQ etc.
After ... -
48K Issue 6A board only showing B/WI have a 48K Issue 6A board here, which only shows a B/W composite video signal on both, the modified RF-out, but also on the expansion bus (using my…
... diagnostics tool). I suspected the ULA, as the installed version 5C112E ... -
Spectrum preservation/clean up questions.I’m sorting out my 5 Spectrums trying to make them look a bit better, and to package them up how they should be, and to get them to be reliable…
... ; SCART cables wear out the ULA?
[6] Feet, I ... -
Harlequin keyboards / housingsI have about 20 or maybe more ZX Spectrum 48K's, which I'm planning to sell in separate parts (refurbished boards, ULA's and cases). Now I'm interes…
What is the Speccy? exUSSR edition.In exUSSR 8 years ago have been solved all these issues, and developed a General opinion. All who do not agree with this opinion, are incompetent peo…
... not exist, because to replicate ULA too expensive.
6 ...Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…
... (related to the moment the ULA triggers the INT line, which ...XPECCY (Lin/Win)im not author of this emulator. Contacts of author you may take on [URL]http://xpeccy.info[/URL] - non official home page. cpu: Z80: all (un)docume…
... (AlCo16c);
Hardware multicolor;
ULA+;
no screen;
filter ...New Floppy Interface for the +2a/b (black case)Hello everybody! For a long time I wondered about the posibility of adding a FDD to the +2a/b (black). I knew it was possible; All the logic is alre…
... is already in the +2 ULA and the DOS is already ...Which emulators support ULA+Tried ZX Spin 7.0, but its unstable. Tried to drag and drop .scr files onto it, but it comes out all wrong. Don't understand the TAP file that's sp…
Tried ZX Spin 7.0, but its unstable.
Tried to drag and drop .scr files onto it, but it comes out all wrong.
Don't understand the TAP file that's spewed out as a palette either.
Any ideas? Thanks in advance...RF Video noise on Grey +2's with Z70700 motherboardHi folks, As we know, some limited numbers of Z70700 Iss 1 boards exist (reported by Ben [URL="http://www.worldofspectrum.org/forums/showthread.php?…
... after extensive probing of the ULA outputs I wasn't able ... RGB output pins on the ULA, but is filtered somewhere between ...New multisystem floppy interface (spectrum 16Kb/+2A/CPC464)Dear all, I would like to show you my new extern floppy interface. Same interface can be used for both, CPC and Spectrum systems. CHARACTERISTICS …
... are usually generated by the ULA, but are emulated in my ...128K Spectrum - can't figure out what's wrongLong time no post :) So I have this 128K Spectrum (+2 ROMs) that I cannot for the life of me figure out where the problem lies. Let's take a look a…
... .
Must be the ULA you say? Tried 2 different ...ZX Evolution -- contended memory and raster emulationFresh bleeding update for [url=http://www.nedopc.com/zxevo/zxevo_eng.php]ZX Evolution[/url] [url=https://code.google.com/p/pentevo/source/list]Baseco…
... /list]Baseconf[/url] -- raster and ULA contended memory emulation for original ...Joytsick Interface damaged SpectrumHello All, Sob.. I am a plonker, I did the cardinal sin, I was testing a bunch of joystick interfaces that I got off ebay and one didn't have the ke…
Zero 0.7.1/0.6.6 releasedA quick update with fixes for a bunch of issues: ? Fixed issues in load and save binary dialog boxes (serbalgi) ? Fixed issues with going fullscreen…
... ) (0.7.1)
? Fixed ULA Snapshot (SZX) not loading correctly ...What influence the number of stripes during initialization?Hi for All! After some adventures, with other rare old computers I'm back here to my favourite forum. :) Recently I got some ISSUE 2 boards from Ben…
... that it depends on the ULA type, but there are two ... have the same 5C112E-3 ULA (dated 8314). One shows four ... eight. As I exchanged the ULA between the boards the number ... the same board, so my "ULA dependence theory" seems to be ...Loads of Microdrive cartridges on Ebay plus Vortex RAMI?ll be selling three bundles of eight Microdrive cases with four, used cartridges each, means 32 cartridges per bundle, here?s one of them [img]http…
Spectrum 48K Ferranti ULAIs there anywhere to get hold of the ICs in the subject? Martin
Is there anywhere to get hold of the ICs in the subject?
MartinThree Spectrum main boards (Issue Two, 3B and 4A)I will be offering three partially tested Spectrum main boards (Issue Two, 3B and 4A) on Ebay. All boot to the Sinclair (C) message. All fully popula…
... populated. Three different flavours of ULA.
Ebay auction starts ...New version emulator ZEsarUX-2.1Hi I have uploaded a new version of my ZX80/81/Spectrum/Z88 emulator on http://sourceforge.net/projects/zesarux/ Changes are: Added Cocoa…
... /> Fixed Gigascreen colours
Fixed ULA port reading priority.
Fixed ...ZX Spectrum issue 6a - yellow border problem<p>Hello!</p><p>I have problem with my Sinclair ZX Spectrum issue 6A, 48K. </p><p>I have changed low memory (all 4116 IC's) and coil, all electrolyti…
... electrolytics capacitors, TR4 and TR5, ULA - checked, Z80 - checked, ROM - checked ...Just Speccy 128What about this Serial 001 board?<br><br><a href="http://www.sellmyretro.com/offer/details/4260" title="Link: http://www.sellmyretro.com/offer/detail…
What about this Serial 001 board?
http://www.sellmyretro.com/offer/details/4260
Is complete with all chips (ULA too!!!).
Wow!!!
