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Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... that TV there is a capacitor that removes DC signal. So ... -
:TECH Question for people who order componentsHi all. I am looking for a component but seem unable to find a supplier anywhere globaly that does not require tradng references and would be willing…
... -> bridge rectifier -> electrolytic capacitor -> voltage stabilizer IC (78xx ... 't a burned diode, failed capacitor, and whether that IC still ... -
Strange grey +2 problemBought a job lot off ebay and in it was a issue 3 grey plus 2. According to the seller this was all working perfectly. So I plugged it in and it powe…
... board. additionaly a 100 pF capacitor can be soldered from the ... -
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…
... short, the 128K needs a capacitor replacement and a new membrane ... -
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…
... short, the 128K needs a capacitor replacement and a new membrane ... -
Speccy PSUI've grabbed a Speccy PSU from fleabay and it looks like a Speccy Plus PSU. After testing it with a multimeter it's kicking out 12V rather than the …
... , two diodes and a large capacitor. The details are different if ... )
[*]Renew the large (electrolytic) capacitor regardless of the condition of ... -
Speccy PSUI've grabbed a Speccy PSU from fleabay and it looks like a Speccy Plus PSU. After testing it with a multimeter it's kicking out 12V rather than the …
... ), i.e. diode bridge and capacitor, you should measure the RMS ... without load (diode bridge and capacitor), then you will measure the ... size and quality of the capacitor and the current drawn. If ... -
Oldest thing of yours you ownthe oldest game thread gave me the idea for a thread about things you own which are the oldest, the thing youve owned the longest. my dad died recen…
I have an old ceramic jamjar in the bathroom (for ... -
Fully-addressed devices initiative (FADI)I would like to introduce an initiative for those who create new pieces of hardware containing legacy devices with well-known addresses. It says that…
... positive pin of a electrolitic capacitor, or BCE of a transistor ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
The capacitor should be there to prevent ... 't try.
Probably a capacitor is also found in the ... and somewhat arbitrairy 'behind' a capacitor, and is affected by the ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
[QUOTE=roko;690299]The capacitor should be there to prevent ... 't try.
Probably a capacitor is also found in the ... and somewhat arbitrairy 'behind' a capacitor... An added transistor stage, when ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... 't have a DC blocking capacitor on the inputs.
capacitor. Then the sync peaks are ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... of fluctuating DC levels. A capacitor separates the AC part.
The size of the series capacitor (22-100uF) and the load ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... of fluctuating DC levels. A capacitor separates the AC part...
...The size of the series capacitor (22-100uF) and the load ... />
He has a 100uf capacitor in series.
Now ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... and DC components. The blocking capacitor removes the DC offset so ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... and DC components. The blocking capacitor removes the DC offset so ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
OK. This 100uF capacitor can (must!) be seen as ... different DC voltages charge this capacitor to different levels. When the ... in the wires toward the capacitor. Which current creates the 'negative ... can be taken from the capacitor.
Four sentences used ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... in the wires toward the capacitor. Which currents create the 'negative ... can be taken from the capacitor.[/QUOTE]
And now ... -
+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... +3 is C37, a 100nF capacitor connected between the collector of ... audio amplifier) and ground. This capacitor forms a low pass filter ... for a smaller capacitor. The best standard value capacitor to let most ... -
1x XC9572XL or 2x XC9536XL?I'm working on some projects which do not settle with only one XC9536XL CPLD. Main reason is of course the lack of user pins on the XC9536XL, I need …
... amount of inductance between the capacitor and the power pin) and ... -
Strange +3 HW IssueI a have a +3 with Issue 2 board system powers up ok and is useable as computer Drive works ok (tested on another machine) the drive however doesnt…
... ensure that the nothing discrete (capacitor / resistor) is not at fault ... -
1x XC9572XL or 2x XC9536XL?I'm working on some projects which do not settle with only one XC9536XL CPLD. Main reason is of course the lack of user pins on the XC9536XL, I need …
... to avoid vias between the capacitor and the power pin (vias ... -
+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... the pulldown resistor and coupling capacitor for AY channel C (pin ... -
Composite mod - which one?On all my 16K/48K and Plus Spectrums I use to carry out the "Womble" Composite mod: [URL="http://womblesretrorepairshack.blogspot.de/2008/11/zx-spect…
A series capacitor removes the somewhat arbitrary DC ... devices have such a blocking capacitor in their input circuit anyway ... -
Setting up an IDE HDD on the +3e helpHello, Just installed a HDD in my +3e (ROM ver. 1.11). When turning on it takes a few seconds longer but then shows 2 IDE (available) as well as 1 fl…
... the 74LS10 IC (and one ceramic cap).
Also, in ... -
Problem with DIY Kempston Joystick InterfaceHello, Decided to try out Yarek's Kempston joystick interface: [img]http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif[/img] Having a few issues.…
... worth doing is putting a capacitor between Vcc and Gnd on ... -
Black and white composite displayJust pulled out an old CRT display and tried my trusty rubber key on it (comp modded), im using one of those scart adapters for an xbox to accept the…
... about the value of the capacitor in that mod, but I ... -
Black and white composite displayJust pulled out an old CRT display and tried my trusty rubber key on it (comp modded), im using one of those scart adapters for an xbox to accept the…
IMO the value of the capacitor is/was fine. If the ... -
Black and white composite displayJust pulled out an old CRT display and tried my trusty rubber key on it (comp modded), im using one of those scart adapters for an xbox to accept the…
... ]IMO the value of the capacitor is/was fine. If the ... -
+2 Grey ropey RF[url=http://postimg.org/image/y9s0xc5k5/][img]http://s18.postimg.org/y9s0xc5k5/P180413_13_13.jpg[/img][/url] Re-orientated TR4 as per normal but the …
... .
-Put a big capacitor (470 uf or 1000 uf ...
