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Screen corruption with devices on edge connector (grey +2)Hi, I've recently done a full capacitor replacement and replaced all 16x DRAM chips on my grey +2. Prior to this I would get a corrupted screen…
... recently done a full capacitor replacement and replaced all 16x DRAM ... -
Ferrite beads in power cords?So I am seeing these modern psu units with ferrite beads on both ends, just like this: [url=https://imgbb.com/][img]https://i.ibb.co/PFQT4n1/9fd19…
... I am seeing these modern psu units with ferrite beads on ... -
Bit of fun - ToastRack , one change onlyAlthough there's an old "one change only" topic about, I was thinking about the toastyrack 128's earlier. Its actually the only Spectrum model I've n…
... ) DP switch fitted to the PSU allowing you to really turn ... -
Need a new keyboard for Issue 2I've dug out my old Spectrum's today. My +3A and +2 grey are both working perfectly. However, my old early Issue 2 keyboard was replaced with a SA…
... to impossible to get a replacement membrane for the SAGA, so ... looking for a good original replacement. Something like the old DK ... Tronics keyboard. Or a replacement rubber key case. Not a ... -
Quirky nerdy hardware quiz time[b]Quirky nerdy hardware quiz time[/b] [list=1][*]How many transistors are on the issue one ZX Spectrum PCB? [color=#FFFFFF].[/color] [*]Which d…
... output of a Sinclair UK1400 PSU?
[color=#FFFFFF].[/color]
Microdigital TK95 / TK90X - my experiencesAs asked for by Renegade [url="https://worldofspectrum.org/forums/discussion/58189"]here[/url] I'll do a short writeup of my experiences with my TK90…
... /> While I got an original PSU along those machines and was ...ZX Spectrum +2B 128K sound distorted and vertical jailbars. How to fix it?Hello, I have a ZX Spectrum +2B 128K (Issue 4 Motherboard) which suffers from sound distortion (the AY music is loud and distorted) and also very fa…
The "Fun" of old equipment...Warning to others with the Alphacom 32.So I manage to slowly rebuild my spectrum, and a part of that is getting a new printer. The Brother printer I once had is no more, and I don't want t…
... these up, maybe a 20vac PSU, or a cheap transformer model ...Formatting old cartridges post-refelting.Hi All, After a recent thread, I tried some of my cartridges that didn't have the felt replaced yet, and after replacing the felt, noted the follo…
... this fairly normal post-felt replacement or is it an indication ...More "What could have been"... The Z280.So in chasing up the Loki specs, I happened upon some parallel developments... And had Sinclair gotten to make the Loki, there could have been some i…
... this as an external CPU replacement, but it would have made ...Amstrad Spectrum Keyboard Membranes.Who sells replacement keyboard membranes for the +2a, +2b and +3? Thanks David
Who sells replacement keyboard membranes for the +2a, +2b and +3?
Thanks
DavidHarlequin 48K - 14MHz Low Profile CrystalDoes anyone know where in the UK I could source a low profile 14 MHz crystal? (AliExpress delivery is end of January 2022). I ordered the below from …
... they sent me the incorrect replacement.
[url="https://uk ... ://zxrenew.co.uk/ZX-Spectrum-Replacement-Cases-only-c22752627"]one of ...Using a thermal camera to fix speccy's.Hi All, Thought I'd share another repair... Got a board that collapsed the bench supply straight away ( I run a bench supply and give it just enou…
... 12v generating circuit... Needs a replacement for a ZTX650... So I ... , and shows signs of previous replacement. Remove it, and replace with ...Voltage/current meterToday I went to my local electronics shop and found this model of voltage and current meter, readily assembled with DC plugs at either ends... :P …
... +2 with a PS2 slim psu, hence the ~8,6 Volts ...Next PM TV debateI seen a clip of this online: "Is Boris Johnston Honest?" was one of the questions. I suppose how they answer that could be somewhat revealing. Howe…
... to vote on Boris's replacement? Are the conservative party going ...I just bought a second hand BBC MasterI have had the notion for a while to get myself a old Beeb - maybe a scrappy one and fix it up - recap its PSU or whatever. Well I gave in yesterday …
... fix it up - recap its PSU or whatever. Well I gave ...Anyone need help TZXing for MIA/MIS ?Hiya folks, A lot of chat but no files yet [img]/__forums/images/smiles/icon_wink.gif[/img] So does anyone have any of the titles in the MIA/MIS li…
I live in Sweden and have looked for replacement cables in both electronics shops and stores selling home electronics and stereos with no luck. It seems they don't have any 1.5 mm male-male cable and have seems surprised anyone would ask for one.Kempston InterfacesWhat Kempston Interfaces featured an additional expansion port on the back, so that you could fit other devices on, such as the Currah microspeech et…
... couldn't even find a replacement buzzer or a plug for ...spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
All you needed was a PSU that is 9V DC 1.4A or more regulated, -ve centre polarity.spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... the input of the Spectrum PSU and at the output.
Or try another PSU like Fraser said. Be carefull ... to use a negative centre PSU or the spuctrum will suffer ...spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
the voltages are:
the transformer puts out about 216V.
the output of the original psu from sinclair(plugged into the transformer)is 12.83V under no load and I know the original psu is unregulatedspectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... in the spectrum, not the PSU or the transformer. If you ... spectrum probe to connect his PSU in your spectrum. If now ... alive.
Or try another PSU and see what happen (remember ...spectrum48k power supply?Hello, I live in the U.S. and I need to get a power adapter for the spectrum 48k comparable to the original. I needed to know all the specifications…
Only a regulated PSU is suitable. 1.4A is meant to be enough for spectrums with add-ons so slightly less might do. How are you going to connect it to a tv?spectrum48k power supply?Hello, I live in the U.S. and I need to get a power adapter for the spectrum 48k comparable to the original. I needed to know all the specifications…
... , if you have the original PSU use a transformer to convert ...[newbie warning :)] Spectrum +3 questionsHello all, Yes, I am a Speccy newbie [img]/__forums/images/smiles/icon_smile.gif[/img] My Spectrum +3 arrived today, and I already have a few questi…
... with the innards of the PSU - if you need a dumbproof ...[newbie warning :)] Spectrum +3 questionsHello all, Yes, I am a Speccy newbie [img]/__forums/images/smiles/icon_smile.gif[/img] My Spectrum +3 arrived today, and I already have a few questi…
[newbie warning :)] Spectrum +3 questionsHello all, Yes, I am a Speccy newbie [img]/__forums/images/smiles/icon_smile.gif[/img] My Spectrum +3 arrived today, and I already have a few questi…
... needed data to build a PSU (I won't build it ... willing to sell me a PSU...
So what should ... I do? Buy an original PSU or trying to build one ...+2aI have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of …
... case you'll need a replacement which will probably have to ...
