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My first composite mod.Thought it was about time I gave the composite mod a go. I used a youtube video, the bloke in the video took 10 mins, I took about 2 hours :) but it…
... RAM module replacements, a Recom regulator replacement, and (given the nature ... -
Using a Euro Sinclair PSU in UKI've got a EURO1400 PSU with a Euro plug. Am I right in thinking I can just cut the pug off and change it to a UK plug, and it will work fine? The on…
... dissipated by the 7805 voltage regulator.
It is however possible ... -
Using a Euro Sinclair PSU in UKI've got a EURO1400 PSU with a Euro plug. Am I right in thinking I can just cut the pug off and change it to a UK plug, and it will work fine? The on…
... when I placed a 12v regulator in the PSU that the ... -
+2 Grey video issueSo far ive replaced TR4, TR5 (and correctly orientated them) and seperated the audio from the video, still I have this; [youtube]mZZWOXRs_Zk[/youtube…
... D20 (near the 7805 voltage regulator) cathode (lead nearest the front ... -
Cooler padI have this cooler pad that prevents an old laptop from getting overheated like hell. It is powered by plugging it to the usb port. I don't have a sp…
... ]
Its a voltage regulator. I believe its switched and ... -
Cooler padI have this cooler pad that prevents an old laptop from getting overheated like hell. It is powered by plugging it to the usb port. I don't have a sp…
... =rune;756764]Its a voltage regulator. I believe its switched and ... more efficient than a linear regulator. -
+3 Power SuppliesI have about 4 spare +2A power supplies. Can I use these with the +3, or is there any difference?
... I remember, a 1 A regulator is used to generate 12 ... is produced by a small regulator (I think rated for 100 ... -
+3 Power SuppliesI have about 4 spare +2A power supplies. Can I use these with the +3, or is there any difference?
... use the same 7812 voltage regulator chip.
We don ... -
PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…
... released by the 7805 voltage regulator.
[B][I]Mark ... -
PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…
... when I placed a 12v regulator in the PSU that the ... -
Grey +2 DiedHi all, Thrashing my +2 playing Mugsy last night and it did this... [URL="https://m.flickr.com/photos/83515822@N05/13012551693/lightbox/"]https://m…
... to check, starting from the regulator? Then TR6? etc? -
Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
... in. Also got new voltage regulator which can also go in ... -
Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
... say that the 7805 voltage regulator is okay, so does not ... -
Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
... Zorn.
Voltages at Regulator and all lower RAM chips ... -
Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
[QUOTE=rune;759961]Voltages at Regulator and all lower RAM chips ... -
Heatsink's for ZX SpectrumAre heatsinks usefull for the chips are used in ZX Spectrum's On eBay I saw some heatsinks for ULA's, 3 for +/- 8 dollar's. And I want to know are th…
... :
The 7805 voltage regulator "chip" already has a heatsink ... -
12v in a Spectrum +2My Speccy 128 +2 requires a 9v 2.1a PSU, all my 9v PSU's are much below 2.1 amps :( I do however have a 12v 2amp PSU, if I reverse the polarity so t…
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As the 7805 voltage regulator will have to work harder ... -
12v in a Spectrum +2My Speccy 128 +2 requires a 9v 2.1a PSU, all my 9v PSU's are much below 2.1 amps :( I do however have a 12v 2amp PSU, if I reverse the polarity so t…
... />
As the 7805 voltage regulator will have to work harder ... -
The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... my attention to the 7805 regulator. It had experienced a violent ... and bought a new 7805 regulator plus 8 16-pin DIL ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... out 11v).
The regulator (7805 on the Speccy, LM2596 ... this to 5v regulated. The regulator will need to dissipate more ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... all: The temperature of the regulator of the harlequin will not ... input. It is a switching regulator with high efficiency. If you ... -
Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... so I connected it's regulator up to the +2a's ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... is that the disciple voltage regulator heats like a pentium, and ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... tab of the switch mode regulator and the inductor where fiddly ... down cycles), and for the regulator a lot of flux, a ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... tab of the switch mode regulator and the inductor where fiddly ... down cycles), and for the regulator a lot of flux, a ... the ground plane of the regulator), liberal application of flux, and ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... the ground plane of the regulator), liberal application of flux, and ... the moment I pushed the regulator down the heat vanished and ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... a *lot* of searching. Voltage regulator gets hot, but that's ... -
Another ZX Compact.As a follow up to finding and posting this last year , [url]http://www.worldofspectrum.org/forums/showthread.php?t=42473[/url] I took on the challen…
... .5mm sockets and a RECOM regulator to get rid of the ... -
Another ZX Compact.As a follow up to finding and posting this last year , [url]http://www.worldofspectrum.org/forums/showthread.php?t=42473[/url] I took on the challen…
... .5mm sockets and a RECOM regulator to get rid of the ... -
Spectrum +2 (Grey version) RGB SCART QuestionHi Guys, A quick question for you. As the new owner of a 128K Spectrum +2 (grey version), I'm using a cable from Retro Computer Shack which tries to…
... clean 5v available from the regulator? So I tapped off there ...
