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48 Issue 3b working but very hot ula and cpuSalve to everybody I bought from e*ay an Issue 3b 48k , fitted in a + case. Fixed the keyboard problem with a new keyboard membrane from good Rwap (w…
... e*ay an Issue 3b 48k , fitted in a + case. Fixed ... ... for 30 minutes at least, no longer time tested), the image ... characters. BUT I noticed that Ula is very hot and the ... for fetishism I added to Ula and Z80 two mini heatsinks ... -
save from 48k to PC in wav?I have looked around - in all the wrong places no doubt. I am trying to save a program from my Spectrum 48k to my PC. I am using a standard 3.5mm jac…
... - in all the wrong places no doubt. I am trying to ... a program from my Spectrum 48k to my PC. I am ... - line in on my PC sound card. When I try and ... -
ZX spectrum 48K ULAhi everyone I WANT a 48K working ULA. My one needs replacing.. Thanks
hi everyone
I WANT a 48K working ULA. My one needs replacing..
Thanks -
Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …
... (Spanish) forum regarding... a dead ULA, but only a partially dead ... to life.
"Another ULA knackered!" I thought...but... how ... did it have problems generating sound or changing the colour of ... there it is! With the ULA no longer used to read the ... -
+3 ULA question.I have a +3 and a DivIDE+ unit. Another user has suggested that the reason the DivIDE+ doesn't work on the +3 is that the ULA may be dud. I have trie…
... the +3 is that the ULA may be dud. I have ... new Z80 and it made no difference. I am going to ... replcaement +3 ULA from? I have been told 48K ULAs do not ... work in a +3, what about 128K ULA ... or +2 ULA? -
48k SoundHi All Been here before but still not happy with my 48k sound/beep volume. I seem to recall with my original 48k Spectrum all those years ago that…
... still not happy with my 48k sound/beep volume.
I ... to recall with my original 48k Spectrum all those years ago ... had a look at the 48k I have now and perceived ... />
I really believe the sound should be better than having ... -
48K Strangeness...Hello hardware forum. I've not posted here before. Yay. :smile: A few days ago, I decided to fire up the 48K Speccy I got given to me for Christmas,…
... decided to fire up the 48K Speccy I got given to ... different power supply from another 48K my brother had, and it ... soft resets), the Speccy made sound from the beeper (kinda like ... a quick whirl on that. No strange quirks, all working as ... -
48k soundIv just had a 48k board arrive off Macc here on Wos ( Thank you Macc :-) ) Fired it up and all is good. Except Im getting sound from the little spea…
Iv just had a 48k board arrive off Macc here ... is good. Except Im getting sound from the little speaker on ... Speccy. But should there be sound coming out of the Speccy ... -
128K sound balanceHello knowledgable-type people, I'm trying to get the best sound on this 128K+ toastrack, using RGB. I've tried using the normal MIC socket. It work…
... trying to get the best sound on this 128K+ toastrack, using ... . It works, but the 128K sound is very quiet and there ... corrupted the 48K sound in the process so that's no good.
48K, very quiet 128K sound.
Can ... -
48k loading problemIve made a video explaining my problem but long story short im trying to load games on my 48k using a mono lead to my computer and playing the emulat…
... to load games on my 48k using a mono lead to ... />
I get sound but it makes no attempt to load,any ... -
Speccy 48K working only as B&WMy 48K rubber key was working OK after a composite video mod (showing colors). But now it has no colour anymore. It only shows images in B&W. With pr…
My 48K rubber key was working OK ... ).
But now it has no colour anymore. It only shows ... this? Is a bad ULA?
My 48K is not working with ... -
48K/128K classificationI'm sorry if I've looked in the wrong places and not found it, but what are the rules regarding a game being listed as either: ZX Spectrum 48K ZX Sp…
...
ZX Spectrum 48K
ZX Spectrum 48K/128K
ZX Spectrum ... features, usually either enhanced sound and/or loading additional data ... being for Spectrum 48K/128K/+2 etc, but makes no use whatsoever ... to the 48K mode)? Should it be 48K, or 48K/128K? I ... -
DIY AY for 48k schematicHello! I can't seem to find a diy schematic for attaching AY to 48k so it gets 128k compatible sound. I see offers to sell ready made devices, but n…
... attaching AY to 48k so it gets 128k compatible sound. I see ... offers to sell ready made devices, but no ... -
New colors / switchable color palette with regular ULA ?Hello. This may be an ignorant question but I just thought about it today and wanted to post it here to get some opinions. OK, so, today, while goin…
... boxes, I came across a 48K Issue2 PCB that I bought ... implement as I make it sound, otherwise Sinclair would probably have ... question are handled by the ULA.
Any comments? :D -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... playing around with this Spectrum 48k I got inside a dK ... .uk/2011/10/zx-spectrum-48k-composite-video-mod.html[/url ... reasoning behind this? It made no difference at all, from what ... at the output of the ULA luminance pin, the noise is ... -
idea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …
... features to your ZX Spectrum (48k):
- USB ports with ... other standards emulation
- AY sound chip with stereo out
no ports apart from hidden micro ... -
Interesting 48K failureI thought I'd recount a failure I've not seen mentioned before that I saw tonight while fixing a 48K issue 6 board. The background: The initial fail…
... mode supply on the 48K board gets shorted. TR4 ... Z80.
3. Intermittent ULA fault (easily testable - since ... high thus preventing the ULA from seeing odd numbered ... - so it was no longer functioning as a ... NMOS output), causing the ULA to sometimes see spurious ... -
MISTER BEEP - the NEW ZX48 album 2014 "Chromospheric Flares"Hi mates. So. Here it is. Something like 2 years after the previous one - here is my new ZX Spectrum album "Chromospheric Flares". [img]http://mi…
... Spectrum 48K music (BEEPER). That means: chiptunes with 1-bit sound- ... entirely made for ZX Spectrum 48K (all recorded from real ... (jack) through 1-bit transducer - ULA chip.
Sometimes it sounds ... of square-wave 1-bit sound (no volume control at all). < ... -
48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
I've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working 48k pluses now. :)
Anyone else come across this? -
Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... to fix my old Spectrum 48K.
Looks like my ... wrong power supply as the ULA had a bit missing and ... had a booting system but no keyboard.
Ordered a ... and installed it but still no reaction to pressing keys.< ... but keys not working and no click as I push ... -
Toastrack key sound but no imageGot a toaster that had a bad ULA, replaced that with one out of a grey +2 (Im sure ive done this in the past and it was ok), now i get the menu up bu…
... toaster that had a bad ULA, replaced that with one out ... up but key presses have no effect, I can hear the ... -
Plus board to 48kThis will sound daft to some no doubt, but is it ok to put a + mainboard into a 48k rubber keys one and expect the keys to work correctly? I have a …
This will sound daft to some no doubt, but is it ok ... put a + mainboard into a 48k rubber keys one and expect ... -
48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…
... for good measure was a 48k 1984 Issue 6a circuit board ... break and reconnected and still no buzz.
The only ... ; bars). I've placed the ULA, ROM and Z80 in other ... which now works as a 48k instead of 16k :D
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…
... br /> memory:
ZX Spectrum 48K;
Spectrum +2;
... 2013 version);
sound:
Beeper;
SAVE ... Hardware multicolor;
ULA+;
no screen;
filter double ... br /> fastplay ? basic 48K routine only (for unstandart ...ZX Spectrum+ DivMMC EnJOY! Grundig 16" LCD TV and books.The Spectrum is in very good condition. Composite video mod. New mambrane (bought in November 2014 from rwap_software [url]http://www.sellmyretro.co…
... Re-assembled.
- Testing: No audio from internal loudspeaker.
ULA pin 28 on executing ... - Keyboard works properly.
- Verified 48K operation.
- Tested with Spectranet ... that everything is fine. Sound works fine as well."
ULAAre ULA's (for Spectrum 48k's) interchangeable through the different issues? To give some background, to work out what was wrong with an old speccy I…
Are ULA's (for Spectrum 48k's) interchangeable through the different ... , I tried an issue 3 ula in an issue 2 board ... properly. No further testing was done. The issue 3 ULA was then ...Replacement speakers for 16/48K SpectrumsThought I'd share a source of replacement speakers for the 16/48K machines: http://uk.rs-online.com/web/p/miniature-speakers/7903975/ (Equivalent…
... replacement speakers for the 16/48K machines:
http://uk ... are driven directly from the ULA (no TR7), so if fitting one ... series to avoid loading the ULA ear/mic pin too much ...Why were there no SN76489-based sound interfaces for the Speccy?I’ve been wondering for a while now why there were no SN76489-based sound interfaces for the Spectrum. Does anyone here have an explanation? There…
... now why there were no SN76489-based sound interfaces for the Spectrum ... are a whole load of sound interfaces, such as the Fuller ... Box, Dk'Tronics 3 channel sound, Timedata ZXM Soundbox, William Stuart ... interface existed based on this sound chip for the Speccy? I ...Spectrum 48k and 128k membranes for sale, no China - productAs I heard that membranes got rare, I would like to remind that SINTECH produce membranes since 1995 and we still have about 200 Spectrum Plus membra…
... in 2014). So there is no need to worry, we have ... /> http://sintech-shop.co.uk/48k-tastaturfolie/a-3025/
https://www.sintech-shop.de/48k-128-keyboard-membrane/a-3022 ... this in 2016. There is no need for further thousands of ...Redesigning the ZX Spectrum 128k - A lifelong dreamHello, I am myPinballs (Jim) and i run a small business here in the uk making replacement 8-bit hardware pcbs for arcade pinball games as well as…
... first got a rubber keyed 48k, i always thought one ... range of replacement cpu and sound board hardware for various pinball ...
• Uses the 128k ULA IC - Ferranti 7K010E/Amstrad 40056 ... /> • Full plate through design, no SMD
• Designed and assembled ...
