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Modern PSU: picture improvement?I've recently seen advertised some 'replacement power supplies' for Spectrums for which the claim is made that they may make an improvement in pictur…
... model) directly from an external psu. Not the most versatile option ... prevent reverse-polarity mishaps. And of course you need a psu + regulator ... -
Modern PSU: picture improvement?I've recently seen advertised some 'replacement power supplies' for Spectrums for which the claim is made that they may make an improvement in pictur…
... comparing to a healthy Sinclair PSU.
Cooler Spectrum, well if ... outputs
Plus the polarity if DC. And the voltage ... to plug the wrong PSU (or the wrong polarity) in to an ... of course watching out for polarity and the actual output voltages ... -
ZX81 power supply. Ok to use with ZX80?Hey guys, Just a quick question, I've searched but can't find a definitive answer. I know the outputs from a ZX80 and ZX81 power supply are simila…
... ZX Spectrum, I bought this PSU.
http://www ... for it to reverse the polarity but it was super easy ... like having a true regulated PSU.
I imagine ... have an adapter? The PSU is rated to work at ... I haven't used that PSU with it. So I ... -
Purchasing Advice for an ignorant AmericanHello, I am a retro computer enthusiast who lives in the United States. I am currently looking into importing a model from the UK, and would like whi…
... to earlier machines. Needs a PSU that produces +5V, +12V ... a higher power PSU compared to the +2A PSU.
[/list]< ... a 9V DC 1.4A PSU. The 128k and +2 ... use any 9V DC regulated PSU that has a current ... greater as long as the polarity on the DC mini power ... -
ZX Spectrum spare parts : "endangered" and functional "extinctions" only It struck me how some Spectrum spare parts or parts that were used with Spectrums and that were commonly available are no longer available . The em…
... /> I would take for the PSU for 48K/+/+128K/+2 (gray ... .8A PSU will do the job as long as the polarity is ... -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... take into acount the Sinclair PSU supplies 9VDC at 1.4A ... good call to ask about polarity. Getting that wrong would lead ... -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... the same PSU works with the Oric Atmos but the polarity is ... -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... could use my Sinclair PSU - knowing nothing about polarity or voltage :-O ... -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... replacement PSU, the things to look for are:
[list][*]Correct polarity ... /> The output voltage of the PSU should be a nominal 9V ... a ZX Spectrum, the actual PSU output voltage should however be ... PCBs have an improved internal PSU circuit, as do some issue ... -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... and a faucet[/s] [b]PSU[/b] works. I got it ... top. Does it tell what polarity it has? -
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... tells you nothing about the polarity of the output connector.
If no polarity is marked, then the only ... test device to test the polarity.
Do you know ... buy a new PSU and that has the correct polarity.
How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... possible to make a LED polarity indicator. But you do need ... fingers and then touch the PSU output plug. Dodgy, but will ...How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... possible to make a LED polarity indicator. But you do need ... fingers and then touch the PSU output plug. Dodgy, but will ...How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... possible to make a LED polarity indicator. But you do need ... fingers and then touch the PSU output plug. Dodgy, but will ...Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…
... on an unregulated (or regulated) PSU that outputs between 8V and ... Note that running from a PSU that outputs a loaded output ... current rating of the replacement PSU should be equal or ... br />
Also, watch the polarity, otherwise you will discover the ...Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…
The original PSU for my 48k+ died many ... unit/synthesizer with non original PSU's as long as the ... sufficient and you get the polarity right it's all fine ...Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…
... quote="ivanb303;925886"]The original PSU for my 48k+ died many ... an unregulated (or regulated) PSU that outputs between 8V and ... Note that running from a PSU that outputs a loaded output ... 1024MAK;925883"]Also, watch the polarity, otherwise you will discover the ...Features that never made it into the SpectrumAlthough kind of a Hardware question (a kind moderator might want to move it, I was 50/50 on where to post it, I don't mind) , I was thinking about t…
... was launched, the majority of PSU’s with a 2.1mm ... connectors did use the same polarity as the Speccy. The reason ...Features that never made it into the SpectrumAlthough kind of a Hardware question (a kind moderator might want to move it, I was 50/50 on where to post it, I don't mind) , I was thinking about t…
... was launched, the majority of PSU’s with a 2.1mm ... connectors did use the same polarity as the Speccy. The reason ... effective short on the 'wrong' PSU but unless it was left ...Bit of fun - one change onlyI also posted this on another marque's forum (for their products) to see. Its just a bit of fun really. OK, if you could of made one change to a S…
... a 9V PSU should have used a diode for reverse polarity protection ...Replacing voltage regulators - need to sanity check a few things pleaseHi Everyone I'm in the process (with a lot of help from some friends at Greenford Computer Club), of giving my three Speccys some much needed prev…
[quote="1024MAK;952445"]If the PSU’s you are using are ... .
The original 9V PSU provided with the +2 (grey ... CPC/Farnell, along with a polarity changer for the barrel plug ...Power supply voltage regulator circuitRelating to [url="https://www.worldofspectrum.org/forums/discussion/56142/"]this topic[/url] I have managed to acquire this little accessory, which I…
... connections (and perhaps that diode polarity reversed?). Like Mark said, used ... minimum. Even though original Spectrum psu may put out ~12V unloaded ...What % of WOSSERS use "old school" tape loading when playing their Speccy games.My guess is .000000001% ( but I might be slightly out on this! ) Do people still enjoy doing it "the old way"?
... part, traditional. The external PSU is a conventional isolating ... DC from the external PSU. It then limits the ... wired for the correct polarity. If you go via ... route, buy a suitable PSU from a company in ... from the external Sinclair ZX PSU. Meaning it will lower ...What % of WOSSERS use "old school" tape loading when playing their Speccy games.My guess is .000000001% ( but I might be slightly out on this! ) Do people still enjoy doing it "the old way"?
... replacement PSU. And that most devices these days use a different polarity ... power connector with the correct polarity is a lot harder.< ... not blow up (assuming the polarity is correct). This should ... protection against a dodgy external PSU.
[b][i ...Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…
... ]
With a switch-mode PSU, you’ll save on electricity ... opening up so that the polarity can be changed?[/quote]
PSU enclosures than to make an ...Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…
... talking about working out what polarity a device requires if the ... are talking about a PSU, working out the polarity is simple (assuming ... it does depend on the PSU voltage, if not sure use ... you are sure on the polarity of the LED ;-)
Spectrum +2 noobie questionsHi! A few days ago I ordered a Spectrum +2 from ebay thanks to a friend and before it arrives, I wanna be sure I'm ready to use it, so I got a few qu…
... find exact info on what polarity the speccy takes[/quote]
polarity is correct. Hence you can buy a suitable PSU locally ... , a 2A PSU will be fine.
The polarity is positive ... connector. If the PSU you buy has the incorrect polarity, you will ...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…
... it is of negative center polarity, the watts??, any output frequency ...blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …
... - damn. i accidentally reverted the polarity of the power power supply ...[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…
... schematics to modify a PC PSU or some other type of ... PSU to use with this speccy? ... I haven't got a PSU with it and I'm ... on how to convert a PSU would be nice...
