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1-resistor fix to +3 sound distortion issue - any feedback?I decided - with my Dad's help, since I am little less than a butcher when it comes to soldering - to fix my +3 sound issue. I noticed the less invas…
... have done a single resistor mod (whether 220R or 330R), is ... on the output of the audio amplifier and prevents it outputting ... -
Question for ZX81 GurusI have an ISSUE 1 ZX81 with a 2C184E ULA. If I ever need to change it, can I use one of the newer 2C210E ULAs? If I can, are there any other mods th…
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So a video mod is normally recommended because the ... inbuilt TV tuners. The video mod / composite video inputs do not ... the quality of the video input circuit of the TV or ... the quality of the video mod of course). The theoretically maximum ... -
New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…
... 't ask me ;)
What input impedence your telly has, and ... what signal levels the mod outputs are the relevant parts ... I did my s-video mod on the +3, but I ... -
Modern PSUHello everyone, I'm looking for a modern PSU for my Spectrums and my dual set of 3.5'' floppy drive+HxC floppy emulator. The one for Spectrum should …
... is very forgiving with the input voltage as discussed in many ... new switch mode model). This mod lowers the heat caused by ... -
speccy 2020Yep, re-made speccy 2010 is ready.. it is called speccy 2020cr - soon preorder. small changes in design, big changes in layout :-) [IMG]http://mmj.p…
Audio (loading noise) output is important to me.
Cassette input would also be useful.
Either of these feature in 2020? -
Sound interference and game errorsHi everyone! Here's some "issues" I have spotted. I'm still pretty new to ZX Spectrum computing/gaming...Just so you know. :) I'm using a Commodore…
... ) into the monitors sound composite input.
The sound is working ... monitor. Or better - to some audio hi-fi setup.
This ... -
Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …
... had to have the cockroach mod made at the factory to ... produce identical results given identical input. On Tuesday I might make ... -
First attempts to obtain 10 channels (TS+GS)Just a curiosity but maybe several people could be interested. For some time now we make some attempts with Lord Vader, to force full synchronisatio…
... my computer I have separate audio-output from TurboSound and from ... , the TS file and the MOD file) have to be placed ... -
Alkatraz Protection System - "How to" and compo?I'm thinking about writing a "how to" regarding the [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0020807"]Alkatraz Protection System[/URL].…
... lets you convert from an audio source into a TZX format ... Spectrum demogroup.
■ Checking input file... ok!
■ Compressed Square ... -
48K No Sound?Repaired a 48K spectrum the other day that had the wrong PSU Plugged into it. Replaced 5v regulator, TR4, TR5 and all Electrolytic Caps. Spectrum th…
I saw it as if it was like any audio device, where the mic was an input and ear was an output. -
What is the Sinclair ZX Spectrum Vega and what does it mean?Just stumbled upon this Indiegogo page following a tweet from SpeccyNews [url]https://www.indiegogo.com/projects/sinclair-zx-spectrum-vega[/url] it…
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A - Composite video, stereo audio, USB for power.
Q - Is a Bluetooth input/output included?
A ... -
What is the Sinclair ZX Spectrum Vega and what does it mean?Just stumbled upon this Indiegogo page following a tweet from SpeccyNews [url]https://www.indiegogo.com/projects/sinclair-zx-spectrum-vega[/url] it…
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A - Composite video, stereo audio, USB for power.
Q - Is a Bluetooth input/output included?
A ... -
+2 external tape input. Best method?I've seen various ways of connecting an external tape input to a +2, like soldering the wires directly to where the tape head connects to the tape bo…
... wired resistor to limit the input current to the tape deck ... series resistor goes between the audio socket signal line and the ... where the screen of the audio cable connects to). Speaking of ... which, you are using audio screened wire inside the Spectrum ... -
+2 external tape input. Best method?I've seen various ways of connecting an external tape input to a +2, like soldering the wires directly to where the tape head connects to the tape bo…
... series resistor goes between the audio socket signal line and the ... where the screen of the audio cable connects to). Speaking ... which, you are using audio screened wire inside the Spectrum ... t=45506&highlight=tape+input"]http://www.worldofspectrum.org/forums ... -
Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …
... an msx doing 8-bit audio on an AY chip. ... quality of the 8-bit audio achievable on the c64's ... can think of.
Audio is cpu intensive so the ... things it can do in audio, especially at the same time ... of 8-bit audio? Ok, but then the "mod" player is not ... -
RGB video issue on +2 and +3. Signal high?I have a couple of +3's and a new +2a that arrived today. When I plugged in the +2a using my RGB lead from Retro Computer Shack I was reminded of a n…
... which then goes to the input select on the SCART.
mod as it may be useful ... -
Once again, fixing the +3 soundOne more question about fixing the distorted +3 sound. The longer you search the internet, the more suggestions you find. They?re all different, but,…
The one resistor mod should work on an ISSUE1 ... these are anywhere near the audio stuff apart from three diodes ... 't hinder you doing that mod at all. -
3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…
... have you done the composite mod? Have you used a transistor ... a direct connection from video input to video output bypassing the ... , try this: use the composite mod that includes a transistor (a ... -
48k noise problem..Hi guys, I need some hardware advice with my old 48k. The machine is VERY noisy - I've fixed the video noise by performing the 'composite' mod, but …
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The output from the audio source (PC sound card) needs ... go into the Spectrum Ear input. Don't get confused and ... -
48k noise problem..Hi guys, I need some hardware advice with my old 48k. The machine is VERY noisy - I've fixed the video noise by performing the 'composite' mod, but …
... the wrong sockets.
Audio goes IN to the EAR ... designed to drive the microphone input of a cassette recorder and ... -
48k noise problem..Hi guys, I need some hardware advice with my old 48k. The machine is VERY noisy - I've fixed the video noise by performing the 'composite' mod, but …
... the 'input'???
Well, you're absolutely right - Audio sounds louder ... -
ZX Spectrum+ video ? red on green problemThis is my first post on the forum, so let me introduce myself. I am retired for several years. For 30 years I have been a fan of the ZX Spectrum. I …
... two signals to S-Video input of my TV. Now the ... to detail and document your mod so others can take advantage ... -
48k Music Software?Hi Guys, I need to create a short soundtrack for an art project, and Id like to use my 48k Speccy - Is there any music production software that w…
... idea there was so much audio stuff for the humble Speccy ... willing to perform a hardware mod if necessary. Any thoughts? -
3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…
... you done the composite mod? Have you used a ... direct connection from video input to video output bypassing ... this: use the composite mod that includes a transistor ( ... I have done the comp mod using a 100uf capacitor ... will attempt the transistor mod when I get a ... -
Hacking a +2 into a shorter caseIf anyone's got a copy of the notes or text they posted about re-wiring the +2 joystick ports or hooking up a tape recorder to the motherboard casset…
... the head pads as an audio-in on my "+4" , ... with only a single mono audio out on one of the ... /> An unmodified +2 has no input so cannot load from an ... /> On a +2 the external audio is nerfed - you need to ... connection is left just for audio output, which I don't ... -
Is it possible to use a +2b tape deck with a +2 grey motherboard?As per the subject really.. I've tried this and it doesn't work properly.<div><br></div><div>I can hear the tape playing through the TV but no loadin…
... words it looks like the input and output pins are indeed ... a capacitor to the playback audio before the final output buffer ... -
ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3 ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…
... DC component on their video input. Also it'll reduce the ... TV's 75 Ω input impedance, meaning the transistor doesn ... more handy to put this mod inside the modulator can, and ... -
ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3 ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…
... site more fussy about the input signal compared to CRT displays ... used the ZX81CCP board to mod a couple of ZX81's ... at knocking together the composite mod that I had seen elsewhere ... -
ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3 ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…
... site more fussy about the input signal compared to CRT displays ... a newer version ULA, transistor mod will usually do.
ZX Spectrum issue 2 has only blue tintsRecently I've bought a 16k speccy and ran into some issues with it. Faulty keyboard, broken caps, no stable frequency, faulty lower RAM chip, it bein…
... the Spectrum "Ear" is an input from the "Ear phone" output ... to go the the Mic input on a tape deck.
audio player, and one of the ... will then need a cheap audio amp, or some inexpensive amplified ...
