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+2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …
... Also, ALL sinclair made PSUs for the 48k and the 128k ... a 4700uF cap is sufficient for them, there's no ... actual need for the +2 grey PSU to ... is there to cut the power supply in case of a short ... cirquit or a very high power spike (by getting blown), ... -
+2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …
... . This is 10ms for a full wave rectifier ... ohm resistor to the power supply. So, now we ... the max rated current for a worst case ... /> So, now we have, for a 4700uF capacitor:
for this application :-)
< ... -
end of term - toy daydid anyone else have these? we used to have them, they were wierd days, where you didn't take any lessons, but instead brought one toy in and played…
... day worth going to school for!
On one of ... remember having to stretch the power supply cable as far as it ... way you could ask him for one. -
end of term - toy daydid anyone else have these? we used to have them, they were wierd days, where you didn't take any lessons, but instead brought one toy in and played…
... day worth going to school for!
On one of ... remember having to stretch the power supply cable as far as it ... -
4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?
... only has multiplexed address bus for lower RAM, so I ... board. A single +5V power supply, and a good look at ... fine, but screen data for the ULA got chewed up ... stable.
Just for kicks, I tried to see ... used (eg. as video memory for a TMS9918 chip).
... -
128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... How much current does the power supply have to provide whilst keeping ... Does your Spectrum work ok for more than 15-20 minutes ... /> Yes it does (work fine for prolonged periods without divIDE+).
for the same current create ... -
128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... regulators and use the same power supply. The heat inside the spectrum ... has lower power to waste.
Ingo. (Sorry for bad english ... -
plus3e simple ide interface problemhi, I prepared a 8bit simple ide interface 3 days ago, but I got problems (with or without ide cable connected). 1.First of all, I have to press re…
... from the +3's supply, Extra decoupling, particularly on ... from the +3's power supply, you should also add ... initial power on seems to fix the problem for me, ... could be related to the power issue, however, never ... When i swapped the disk for a 512K Disk module, ... -
plus3e simple ide interface problemhi, I prepared a 8bit simple ide interface 3 days ago, but I got problems (with or without ide cable connected). 1.First of all, I have to press re…
... ;335461]
@Spodula,
Thanks for your message, it's been ... your not tapping power from the +3 for the hard drive, Adding ... rest were caused by the power supply issues. -
Scary electric businessThe tranformer that supplies 12V to my monitor has started to leak. I suppose it's the capacitor inside. Should I hunt down a different one? Is it sa…
... it safe to continue using for now? Is it worth it ... go "bang", or the entire power supply can go "bang" if the ... . (I've had a PC power supply dump 240 volts on the ... on the design of the power supply and what's failing at ... -
Issue 2 Spectrum overheating keyboard membraneI think I have an issue 2 ZX Spectrum. I don't want to take it apart again as I had problems replacing the keyboard membrane. With Interface 1 conne…
... a common problem for rubber key Speccy's, for a combination of ... with a [I]regulated[/I] power supply that outputs around 7~7 ... already? Things to watch out for?
I understand (and ... -
Issue 2 Spectrum overheating keyboard membraneI think I have an issue 2 ZX Spectrum. I don't want to take it apart again as I had problems replacing the keyboard membrane. With Interface 1 conne…
... plug in the "9v" brick supply at the same time because ... Issue 2 needs a +9volt supply for the +/-12volt and -5volt switching ... consider replacing the entire internal power circuit with a more modern ... would be to reduce the power burden of the overall circuit ... -
The Joy of Upgrades.Well, this weekend I am working on upgrading my computer and its gunna be a beauty. 3Ghz Quad Core, 4GB Ram, 16000 DDR2 Ram, 1 TB HD. ATI Radeon GT4…
... They use the cheapest, crappiest power supplies. Your new machine is ... down lots of power, I suspect. Make sure the power supply is actually ... soon. Once PCs used for general tasks got fast enough ... fast enough and the reasons for upgrading every 18 months ... -
The Joy of Upgrades.Well, this weekend I am working on upgrading my computer and its gunna be a beauty. 3Ghz Quad Core, 4GB Ram, 16000 DDR2 Ram, 1 TB HD. ATI Radeon GT4…
... ]They use the cheapest, crappiest power supplies. Your new machine is ... down lots of power, I suspect. Make sure the power supply is actually ... output on all the rails for it to be a stable ... -
The Joy of Upgrades.Well, this weekend I am working on upgrading my computer and its gunna be a beauty. 3Ghz Quad Core, 4GB Ram, 16000 DDR2 Ram, 1 TB HD. ATI Radeon GT4…
... lots of power, I suspect. Make sure the power supply is actually ... time soon. Once PCs used for general tasks got fast enough ... fast enough and the reasons for upgrading every 18 months evaporated ... think![/QUOTE]
My power supply is quite good. It's ... -
Help with faulty +2ahi everyone I'm Nuno from Portugal I think I made poopoo with a 128k +2a motherboard I had spare for testing purposes This motherboard has always …
... the rom and CPU sockets for continuity and there is just ... I'm using a +3 power supply, but it should be ok ...
thanx a lot for the help
if i ... -
Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…
... So for example a [I]regulated[/I] 7.5V supply would be ... plug is + on my Spectrum power supply.
[QUOTE]
Presumably ... all. Easy to do even for beginners. Highly recommended!
for example black & white only ... -
+2 datacorder noise eliminationHello :-) I have recently bought a gray +2, and as expected, it is plagued with the "datacorder noise in sound output" problem. I have found a few …
... from having to feed the power LED separately, can anyone think ... . The reason is, that the power supply of the amplifier of the ... caused by ripple on the power (from motor or computer). If ... capacitor requests a big current for a short time which causes ... -
Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…
... RGB output... :-(
For that power supply: at 9V, it won't ... the internal Spectrum regulator gives for output (you could measure that ... what a regulator does). But for a 48K Spectrum alone, 1A ... /> Or just ignore.. if the power supply is too weak, you'll ... -
Issue 1 80K SpectrumHere's the other Spectrum I acquired last weekend. It's an [URL="http://www.drumfu.com/Issue1.jpg"]Issue 1[/URL] with an [URL="http://www.worldofspec…
... 've got a selectable power supply I used for a ZX81 so will ... got to get an adaptor for the TV Out (Can't ... -
Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…
... found that the Sega Megadrive power supply here in Japan should be ... 't have any other peripherals for the Spectrum, I've never ... and I've had it for 25 years!
I ... 've have a look around for a cheap television too.
Advice on cooling a PC needed.I am about to build what is gonna be my final PC but i want it to be a humdinger and need advice on keeping it cool as in the past i have built prett…
... the temp. (See Asus AISuite for example)
If you ... down the noise or faster for a cooler CPU. Unless you ... air out of the case. For example my case has two ... behind the CPU, Over the power supply and directly out of the ...Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…
... got? I need something for that job this side of ... br /> You know any old Power supply will do so long as ... 's been working fine for 6-7yrs. Cost me ... /COMPACT-VARIABLE-LINEAR-DC-POWER-SUPPLY-3-12V-2a_W0QQitemZ350184037220QQcmdZViewItemQQptZLH_DefaultDomain_0?hash= ...OK, nobody move......otherwise someone will disturb the chuntey surrounding the router again...
... get what you pay for............and if you don' ... t pay for it you don't ... However - If you DO pay for something and fail to recieve ... full service you've paid for - kick up a stink....... ... inappropriately connected to it's power supply, or cabled up with ...Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…
... -NEW-9V-2A-AC-DC-Power-adapter-Power-supply-Well_W0QQitemZ260386719174QQcmdZViewItemQQptZCOMP_EN_Networking_Components?hash=item260386719174& ... thinking as I want to power a Beeb, Speccy, maybe C64 ... then I would go for one of these : [url]http ...At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... I picked up a power supply and mouse for my Amiga 600HD and ... a belkin wireless print server for ?40. It seems to be ...New Spectrum owner - Newbie questionsHi, I just got my first Spectrum in the post today +2a) and I'm looking for some advice on a couple of things: Firstly I'm not the biggest fan of j…
... +2a) and I'm looking for some advice on a couple ... for the +2?
My second question is regarding the power ... a real problem. A PC power supply makes noise too... |-D.At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... I picked up a power supply and mouse for my Amiga 600HD and ... a belkin wireless print server for ?40. It seems to be ...Your computer rooms, shrines and such.Just over a year ago, the wife suggested I move all my computery bits into the largest room in the house. Only recently have I made some progress in…
... (from a small switch mode power supply, you can just see at ... as some kind of oddball for liking them. I only made ...At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... ) and a few nice games for a tenner later on though ... fortune. "I'll get £50 for that all day", its usually ... ZX 128K +2 without its power supply and a copy of Scrabble ...
