Will the composite mod work on a +2A as it does on a 48k+, the reason i ask is cos i tried it on my +2A and all i get is a slight interference on the picture but nothing is recognisable. It worked on my 48k but i presumed the same would happen on my +2A.

... these complicated ways of doing a composite mod on a spectrum. also they involve ... (or whatever connects to your composite tv) and wrap the signal ... wire straight onto the composite out at the side of ... also means you can still use the rf out connector to ...

... of use, Is it safe to assume that doing the composite mod would ... it , it still appears to use the modulator circuitry. I am ... , I don't even own a soldering iron so I would ... need a proffessional to do the mods ...

... two things: firstly I composite-modded an Issue 4S board ... does anything useful. This is why I think that, and ... is said that the mod that uses a transistor and 75 ohm ... Now follows the sums on why it doesn't actually do ... I'm wrong point out why I'm wrong.
...

... my two QL machines (capacitor replacement, pcb and plastics ... one. I did the composite mod on this QL because ... with the known transistor-resistors-capacitor cirquit.

I get a picture with colours and all ... it usually is on a speccy that has been ...

... did the composite mod on my two 48k machines a long time ... ago, used them with my Composite ... break, so I have to use my tv. However, when ... the Composite input on my tv, I get a very ... looks like beat frequencies of a sort across the picture, ...

... a composite mod, taking the composite from the RGB connector and connecting it to a ... phono out on a seperate pcb I ... AY kicks in.
Which capacitor do I need to remove ...

... Spectrums I use to carry out the "Womble" Composite mod:
[URL="http://womblesretrorepairshack.blogspot.de/2008/11/zx-spectrum-composite ... -video-mod.html"]http:// ... does the capacitor actually do?

... time I gave the composite mod a go. I used a youtube video, the ... :)
Might have to do a few more of my speccies ... type of soldering iron to use for stuff like this?
My mate uses a gas powered one. mine is ...

... my Spectrums have a Composite mod. Is it possible to use a Currah uSpeech with ... such a modified Spectrum (and ... will no longer work with a Composite mod installed. :confused:

... a few Spectrums and decided to modify them all with the composite ... video mod, i.e. redirect ... to the output. I use a small 8" 4:3 ... I have noticed though that a couple of boards (an ... far no noticeable issues as a result.

...

I took a photo of the composite mod I built into the modulator ... box of my spectrum+ for a ... solder out) you can build a properly matched video out circuit ... rf socket is now a properly matched composite out socket 75 ohm ...

Wanted Spectrum 48k+ with composite modification (this is a mod that changes the Spectrum ... you have a 48k+ in good working order with composite modification that ...

... it up and saw a rather odd composite mod had already been done ...

... I'd have a crack at the composite mod on two of ... the second I'm getting a jumping/flickering display, largely ... I do have 2 other composite modded Speccies now that ... received. I did run a few searches but didn't ... wrong track. The pre-mod TV picture was very ropey ...

I have a problem, I just got my ... arrive, meanwhile I did the composite mod and on startup before the ... when i move around the composite plug, i get color on ...

Hi i'm looking for a good and cheap way to do a composite mod on a broken ZX81 that I have. I know there is a ZXvid on sellmyretro, but the price is a bit to high to me.
So I look for a cheaper way to do the job ;-)

... power socket (replaced with a square 4 pin socket)
[*]The Coil
[*]C47 capacitor
[/LIST]

... There's a square under D6 which appears ... to this? I'm guessing a mod to use a different PSU..?

... ,

I've done a little work to what I ... rubber key speccy - It's a Samsung made issue 3b.
composite mod that the letters on screen seem to have a shimmer ... little difference. Prior to the mod, I installed one of those ...

... done a simple composite mod to my Issue 3 ZX81 following a basic schematic ... ZX81 forums. Mod consists of a BC547, 100R and a few wires for ... something or is this mod not suitable for composite output to LCD ...

... 48k spectrum and did the composite mod. Unfortunately it did not end ... the transistor or the capacitor to the mod. the result is very ...

... anything.

The capacitor will remove the DC component ... the USB capture device has a capacitor at its input so ... if you cannot use a capacitor right now, use the +5V mod. If you have ... because I was poking its composite video output)

...

... , try this: use the composite mod that includes a transistor (a BC337 works fine ... of the transistor with a 100uF electrolytic capacitor.

... closer to 0V. The capacitor removes the DC portion of ... signal. Normally, only the capacitor should be enough.

... way, try this: use the composite mod that includes a transistor (a BC337 works fine ... of the transistor with a 100uF electrolytic capacitor.

The transistor ... have done the comp mod using a 100uf capacitor bypassing the modulator. I ...

... My 48k has a simple wire composite mod without any caps or ... capacitor composite mod once I'm home from work. :)[/quote]

I use ... cables). So the composite mod is more a case of "is ... br />
Hope the composite mod goes well, do please keep ...

Without digging out the schematics, is it possible to do the composite mod like the 48k on these?

... a spectrum issue 5 board and I'd done the general composite mod ... which was great and it worked with a divIDE ... Sami's other mod that included a capacitor, transistor and a resistor.
... they wouldn't mind having a look at my spectrum ...

Just wanted to know would this mod work on a +2a ?

Can you use a ZX81 psu to power a ZX80 without causing any Damage?

Cheers

... washed everything.
2. Fitted a new membrane. [Thanks RWAP / [ ... /> 3. Did the composite mod (just soldering a wire, no capacitors etc ... ).
4. Attached a heatsink to the ULA. [Thanks ... url]).
6. Purchased a SMART Card (from Retroleum, as ...