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Interface 1 electrolytic capacitorsInterface 1 has three 47μF electrolytic capacitors. Is it necesary to replace them with fresh ones? I always do this with old speccys but is it…
Interface 1 has three 47μF electrolytic capacitors. Is it necesary to replace them with fresh ones?
I always do this with old speccys but is it also necesary with interface 1? -
Needing new capacitors. Where to buy online?Hi. I need new axial capacitors for a whole bunch of Speccy boards I have. Problem is, it's been hard to buy some of them online. Some shops will onl…
Hi. I need new axial capacitors for a whole bunch of ... I can buy new axial capacitors?
Radial aren't ... -
CapacitorsSorry, another question... I've done a bit of looking around, although after a couple of beers this may not have been as systematic as usual, but I …
... information on the specifications of capacitors that should be used as ... -
Spectrum CapacitorsLooking for some opinions here, if I may? In the 80's and 90's I used to repair Spectrums and other machines for a living so I'm reasonably famili…
... really relates to the electrolytic capacitors used in the Spectrum. Some ... , and I wonder if the capacitors used by Sinclair are really ... need to replace any electrolytic capacitors (I can't say the ... of a new set of capacitors isn't that great, but ... -
Which capacitors are electrolytic?Hi! I'm refurbishing my 48k issue 6a, and as recommended by many (and not recommended by some) I'm going to replace the electrolytic capacitors. Mind…
... going to replace the electrolytic capacitors. Mind you, I don't ... -
Harlequin Rev G - Decoupling Capacitors?Guys - I started assembling my Rev G Harlequin board over the weekend. Right after I picked it up and started loading parts, it struck me that there…
... just not that many decoupling capacitors on this board and the ... -
Snap-in electrolytic capacitorsWhile trying to bring back to life an old PC I decided to change the caps from the board and the power supply. However, the power supply has two b…
... big HEC branded 470uF 200V capacitors which are the 'snap-in ... -
Spectrum 128k+ for saleHi, I have an excellent condition Spectrum 128k+ (heatsink type) that has been totally reconditioned. -New capacitors, AY sound chip, Z80 cpu, membra…
... been totally reconditioned.
-New capacitors, AY sound chip, Z80 cpu ... -
Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…
... (after replacing all the electrolytic capacitors and transistors tr1 and tr2 ... -
Shivery picture.I have two spectrums that show a shivery picture (vertical axis). The picture is crystal clear, it's just a slight vertical jitter but it is annoying…
... , and so are all electrolytic capacitors onboard. -
Datacorder "on strike" on my 128k +2AHi, I have a problem with the built-in datacorder on my +2A : The sound became "noisy" with cracks... Giving the tape recorder a little hit was the…
... broken solders, I changed some capacitors...
Nothing better...
I ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... I replaced all the electrolytic capacitors.
The tr4 transistor was ... -
Spectrum ethernet ... first stepsThe first thing I do when I get a strange and unusual chip to play with, is to make a breakout board. The breakout board basically contains the chip …
... best way to solder 0603 capacitors and resistors - 0603 is a ... -
Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…
... tiny surface mount passives (resistors/capacitors etc). I can now solder ... -
+3 sound problemHello! I've bought +3 a year ago and I wasn't really impressed with it's sound. It was really bad. Then I found this page [URL="http://www.secarica…
... may be the cause? Dead capacitors C37, C40, C39? Maybe TR5 ... -
Faulty +2 Grey :(Hello everyone... i was trying to fix a +2 grey board the other day, i had it for some time now. It gave a black screen (paper and border) with two …
... ...
ps. all electrolytic capacitors have been replaced with new ... -
grrr The Capacitor PlagueI'm getting fed up of The Capacitor Plague. If you don't know what this is, I'll tell you the result. Your computer stops working. Sometimes, it won'…
... s happened is the electrolytic capacitors in the power supply ... under warranty due to bad capacitors. Now, the power supplies ... machines are failing through bad capacitors.
This week, ... had died due to bad capacitors on the motherboard - although ... -
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…
... ferranti #7, all new electrolytic capacitors, full check of voltages, new ... -
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…
The 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 safe to continue using for now? Is it worth it, to try to get it fixed with new capacitors? -
Spectrum+ 128 (toastrack) - tuning issueI remember a post from a while ago where [COLOR=Blue]Winston [/COLOR]said his [COLOR=Red]toastrack[/COLOR] had horrendous [COLOR=SeaGreen]drift [/COL…
... or gtsamour suggests swapping out capacitors or transistors? :)
I ... -
Welcomes...and some technical stuffHello I`d like to welcome all ZX Fans. I`m rather ATARI 8bit geek - I got this grat machine when I was 14...20 yeras ago... There were few ZX in …
... smal mods inside (removing all capacitors, tranzistors) and implementing inside 7905 ... -
Specdrum SyncroI'm having trouble syncing my (revision 4b)48k specdrum. The sync pulses sent out of the MIC socket are low, barely +50db, and isn't powerful enough…
... problem, if I change the capacitors and resistors leading up to ... -
Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
What's this hardware?[URL="http://www2.snapfish.com/slideshow/AlbumID=1351742020/PictureID=39192676020/a=1759991020_1759991020/otsc=SHR/otsi=SPIClink/COBRAND_NAME=snapfis…
... dedicated to some transistors, resistors, capacitors. There is also a 5 ...Trying to repair a 128K (heatsink)I've bought another ZX Spectrum 128K (heatsink model), but unfortunately the last owner did not tell me it did not work.... Because this Speccy also…
... 8.8MHz on the two capacitors that go to the TEA2000 ...zx spectrum loading problemshi sorry to bother you guys again. while i was removing 1 of the resistors that was discolured i have noticed 1 of the capacitors looks discoloured..…
... have noticed 1 of the capacitors looks discoloured.. think it c32 ... go on these type of capacitorsde soldering chipshi whats the best method for de soldering memory chips? i have heard its best to put a plug in socket..recently replaced diodes and capacitors on iss…
hi whats the best method for de soldering memory chips? i have heard its best to put a plug in socket..recently replaced diodes and capacitors on issue 2 board i found this a nightmare even though ive bought a half decent soldering iron,,,IF1 and 48k Capacitor QuestionsHi, I am not very knowedgeable about electronics but I am willing to give stuff a go.. I have a microdrive that is not performing and for various r…
... to replace the IF1 electrolytic capacitors.
However ... very different looking electrolytic capacitors than those in the ... /> See here Spectrum 48k capacitors again with reb block around ... for 25v 47uF Axial electrolytic capacitors?
WHY ...8 pin DIN to Component RGBSpectrum +3. OK, my monitor has red, green and blue component RCA input on it. Could someone please tell me how to wire an 8 Pin DIN to the 3 RCA cab…
Spectrum +3. OK, my monitor has red, green and blue component RCA input on it. Could someone please tell me how to wire an 8 Pin DIN to the 3 RCA cables? Would I need any capacitors? Is this even possible?So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... clock. (The two capacitors are just the load capacitors for the crystal ...