-
Mini project: SpecPad, Kempston to SJS 1 & 2Hello, Just finished a small project with a Genesis gamepad I had or was using on my Speccys. I added a cheapo decal...will probably go get a vinyl o…
... the update/corrections to the schematic, I noticed that certain bits ... -
Fuse for Mac OS X 1.1.1 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... emulation (Philip Kendall).
[*] Add SpecDrum sound interface emulation (Jon Mitchell ... -
Interface 1 ULA - what does it do and what not?I heard a rumour a few weeks ago: that the Interface 1 ULA does not control the Microdrive, but mainly the ROM and network. Many of us (like myself)…
... /> So today I downloaded the schematic to find out the truth ... -
ZX Spectrum Pre-regulator DesignCarrying on from the "[URL="http://www.worldofspectrum.org/forums/showthread.php?t=44486"]Issue 2 crashes after about 30 mins[/URL]" thread... [QUOT…
... is the provisional circuit diagram / schematic:[IMG]http://farm4.staticflickr.com ... -
Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…
... info:[/B]
Here is schematic and PCB in PDF and ... -
Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
... [/B].
MB-02+ schematic (last fixed version with signed ... -
Hardware description - MULTIFACE 3[B]Hardware description - MULTIFACE 3[/B] This is description of MF3 clone, because I can't find more about original interface. Schematic and PAL ch…
... more about original interface.
Schematic and PAL chip equations from ... ) = full 8bit decoder.
Schematic exported from Eafle SCH file ... -
Op-amp question for the more knowledgeable tech headI have a dual op-amp IC in a 9 pin SIL package. Pin 1 and 9 are Vcc as marked on the datasheet. The internal schematic as supplied on the datasheet…
... datasheet.
The internal schematic as supplied on the datasheet ... -
Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
I make schematic of MULTIFACE 128 (v36) from ... all bugs and here is schematic. I can't verify it ... have real MULTIFACE 128. But schematic structure correspond with known functionality ... [/URL]
I have schematic and board with all components ... -
Opus Discovery OddnessHi everybody, I'm busy trying to repair an Opus Discovery for a customer. It's proving to be quite frustrating. First off, the LM317T regulator fo…
... Discovery 1? I found a schematic for the control circuitry, but ... -
ANN: Spud v0.225New version of Spud for anyone who's interested. Some new features. [code] v0.225 ADDED: Load & Save Binary Files. ADDED: Manually trigger NMI. A…
... Box Emulation.
ADDED: Cheetah SpecDrum Emulation.
ADDED: Currah uSpeech ... -
Joystick doubler for SAM COUPEI make new PCB of JOYSTICK DOUBLER for SAM COUPE. [B][COLOR="Red"]But schematic is not tested on real HW.[/COLOR][/B] [url=http://www.oldcomp.cz/vie…
... COUPE. [B][COLOR="Red"]But schematic is not tested on real ... -
DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…
... addressed. Here's a basic schematic (part numbers are surface mount ... -
PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
... 's a part of the schematic; the #/ZXROM is the output ... .jpg[/IMG]
Full schematic [URL="http://www.benophetinternet.nl ... -
Refactoring the ULAplus HDL descriptionFor the ZXUnio project, I'm refactoring the Verilog code I wrote two years ago to describe the ULA and the ULAplus devices. When I've taken this code…
... Verilog, I've drawn a schematic of what it turned to ... the ULA/Timex/ULAplus datapath schematic (click to enlarge)
Issue 4S washed out pictureEvery single one of these ive had has a washed out display, no where near as crisp as the other issues ive had, Samsung did something there that has …
... care to poke around a schematic and see what the difference ...+2 Audio Input?I'm looking for the audio input on the motherboard side. Looking at a horrible blurry schematic that I have, I'm guessing that EAR is Pin 4?
I'm looking for the audio input on the motherboard side.
Looking at a horrible blurry schematic that I have, I'm guessing that EAR is Pin 4?Harlequin - usefull mods and addsHello, I start here a thread regarding mods and adds for the Harlequin. It was found: * that the Sinclair Interface 1 does not fully work at the Ha…
Strange ZX81 PCBHello I took apart my non-working ZX81 to attempt to fix it and I noticed that the resistors and diodes were soldered a bit strange. The wires are c…
... was looking for the ZX81 schematic online when I came across ...SpecDrum in action??Hi everyone, I am now intrigued by this device and the fact that it was released in 1985 makes it even more interesting... I have seen some videos in…
Hi everyone, I am now intrigued by this device and the fact that it was released in 1985 makes it even more interesting... I have seen some videos in youtube, and it sounds really amazing... could this be used in games? Or the full memory of the Spectrum ...specdrum videodunno if this was ever posted [youtube]RVLOeINDN-Q[/youtube]
dunno if this was ever posted
[youtube]RVLOeINDN-Q[/youtube]Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…
... fun I'm taking the schematic for the Issue 3 and ...What is this disk interface (and how to use it)?Anybody seen this floppy disk drive interface before? It uses an MB8877A and the rest is 74XX-logic, no GALs/PALs. And an EPROM. [IMG]http://i1373.p…
+3e simple ide interfaceHi guys, I want to make a +3e with my +2a. I'm thinking of making the simple 8bit ide interface (internal) and connecting it to a 40 pin ide to sd r…
... ://www.worldofspectrum.org/zxplus3e/images/schematic.gif[/IMG]
As ...What is the Speccy? exUSSR edition.In exUSSR 8 years ago have been solved all these issues, and developed a General opinion. All who do not agree with this opinion, are incompetent peo…
... computers, repeating not only the schematic and the PCB layout. Replica ...Multi Multiface: the projectI posted some updates on Facebook yesterday about the development of the Multi Multiface, but here is the right place to share all technical findings…
... /> Reverse engineering the Multiface 3 schematic from board files:
The Multiface 3 schematic:
[IMG]https://fbcdn ...RF Video noise on Grey +2's with Z70700 motherboardHi folks, As we know, some limited numbers of Z70700 Iss 1 boards exist (reported by Ben [URL="http://www.worldofspectrum.org/forums/showthread.php?…
... , does anyone know of a schematic and layout for this board ...New multisystem floppy interface (spectrum 16Kb/+2A/CPC464)Dear all, I would like to show you my new extern floppy interface. Same interface can be used for both, CPC and Spectrum systems. CHARACTERISTICS …
... 555 timer.
The schematic for the /READY emulation is ...I broke my 48k Speccy!!!!Hey guys, I am looking for some advice, I hope you can point me in the right direction. So, I went about replacing all the capacitors on my issue 4…
... /> Why does the 4b 48k schematic only show micro farad specs ...
