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DivIDE HelpHi all, After a rather long wait my DivIDE from Papaya labs arrived. I connected it to my spectrum, turned it on and...nothing. The green power LED…
... 5v side via a 7805 regulator (the usual 7805 circuit, the ... regulator plus 2 capacitors).
... -
Of soldering and whatnot.So. It looks like if I'm going to have any sort of active retrogaming habit in the future, I need to learn a bit more about the nuts and bolts. Emula…
... ICs.
- A 7805 voltage regulator, and simple wall wart power ... -
What are you reading?I'm reading [i]The Hazards of Space Travel: A Tourist's Guide[/i]. It's pretty good.
Recent broadcast complaint adjudications by the UK broadcast regulator Ofcom.
I should get out more, but I am away working, nice and warm, have a box of white wine next to me, the Interweb, Sky TV and not working until 10am -
I killed my SpectrumMy room was a mass of leads.... and I plugged my NES transformer into my ZX Spectrum +2 accidently, frying it :cry: , am I screwed? or is there somet…
... couldve just popped the cheap regulator inside (the bit thats warms ... -
I killed my SpectrumMy room was a mass of leads.... and I plugged my NES transformer into my ZX Spectrum +2 accidently, frying it :cry: , am I screwed? or is there somet…
... doesnt.
The voltage regulator chip is almost certainly a ... is certainly replace the Voltage regulator chip, a very easy operations ... -
I killed my SpectrumMy room was a mass of leads.... and I plugged my NES transformer into my ZX Spectrum +2 accidently, frying it :cry: , am I screwed? or is there somet…
If you're lucky, you only fried the 7805 regulator which is very cheap and common. -
Spectrum 48K input voltageI have a power supply that is rated 9,5 Volts DC. With no load it outputs about 9,86 Volts. Is it safe to use it for ZX Spectrum 48K? (it can do …
... 9V/3A power supply (without regulator) which supplies about 12V without ... -
What is wrong with this auction?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250246790438[/url]
... .se/~vjz762w/other/ZXREG.jpg]regulator fix[/url] (but ended up ... -
What is wrong with this auction?[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250246790438[/url]
... substituting the 5V linear regulator by a switching regulator using a LM2576 ... -
True Spectrum laptop (no emulation)[url]http://user.tninet.se/~vjz762w/[/url] Hi All, I have build a speccy laptop, battery part is not ready yet.... I did it on 2 days, I will put s…
... reg, or all in your regulator.
If Cookie is ... 7805 with a switch mode regulator, you'd be better using ... -
True Spectrum laptop (no emulation)[url]http://user.tninet.se/~vjz762w/[/url] Hi All, I have build a speccy laptop, battery part is not ready yet.... I did it on 2 days, I will put s…
... reg, or all in your regulator.[/QUOTE]
True, my ... 7805 with a switch mode regulator, you'd be better using ... -
True Spectrum laptop (no emulation)[url]http://user.tninet.se/~vjz762w/[/url] Hi All, I have build a speccy laptop, battery part is not ready yet.... I did it on 2 days, I will put s…
True Spectrum laptop (no emulation)[url]http://user.tninet.se/~vjz762w/[/url] Hi All, I have build a speccy laptop, battery part is not ready yet.... I did it on 2 days, I will put s…
... is a true switch mode regulator (balanced LiPoly charger) that senses ..."Upgraded" broadbandTo cut a long story short, I have just had my broadband speed upgraded from 1meg to 5meg (it was free). Having just spent over an hour setting up the…
... . Even a humble 7805 linear regulator circuit will do a reasonable ... capacitor (and no, a linear regulator won't inject more noise ... the mains. A switch mode regulator may well do, though - they ... solved and off the shelf regulator ICs will do the job ...PSU queryHi all, just one quick question. Are Spectrum PSU's compatible with ZX81's? I've just bought an '81 off of Ebay, which was sold as "working, but the …
... . It uses a standard 7805 regulator for this which requires a ...Inflatlation at 4.4%Inflation at 4.4% and still our government seem to do nothing. Given that the governments target inflation was 2% WFT??? Everyone is taking the pi…
... in our housing market - the regulator really should have seen it ...Inflatlation at 4.4%Inflation at 4.4% and still our government seem to do nothing. Given that the governments target inflation was 2% WFT??? Everyone is taking the pi…
... in our housing market - the regulator really should have seen it ...I blew up my +3I'm still not sure of what happened (most probably a wrongly inserted interface) but I blew up my +3. What happens when I turn on the power or press …
... be Bad ram, bad voltage regulator, bad rom, bad cpu, bad ...+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 …
+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 …
... -out voltage of the 7805 regulator in the Spectrum. If 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?
... lower)
* Replace +5 regulator with switching regulator
* Document this stuff ...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 …
... reduce the heating power of regulator, then giving the ULA an ...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 …
... say that heat from the regulator's heatsink is causing the ... anyway.
A 7805 regulator shuts down when it gets ... output current from a 7805 regulator using a TIP3055 power transistor ...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 …
... a matter of the 7805 regulator then all he has to ...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 …
Any linear regulator is going to get hot - ... heat in that little 7805 regulator) and you're only drawing ... ! You can put a bigger regulator in but you still have ... the route of changing the regulator, there are "simple switchers" (switch ...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 …
... drawing heat away from the regulator heatsink with water(!#?) or ... the route of changing the regulator, there are "simple switchers" ... that (although a 90% efficient regulator sounds great!)
... current from a 7805 regulator using a TIP3055 power ...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 …
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 …
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Place an additional 5V regulator (7805) inside the divIDE+ case ... divIDE+ and so the 5V regulator inside spectrum has lower power ...R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…
... check of voltages, new voltage regulator, new membrane... Also added a ... /website on a better voltage regulator that can be used instead ... to add an additional voltage regulator in case one fails (have ...
