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+2a datacorder problemsHelloooo, how's it going? Reason I'm posting is that 1) I'm a massive speccy fan, it was the first range of computers I ever owned 2) I'm having rea…
... (or something on the cassette pcb is). I say this because ... is blown on the datacorder pcb (I've got no way ... -
Problem upgrading 16K SpectrumHello Spec-chums, I've been a long time Commodore user, but also a long-time Speccy admirer (and emulator user). I've recently got hold of a Issue 2…
... very early spectrums, and the PCB looked hand drawn rather with ... upgrade those directly on the PCB easily, they took a daughter ... the additional RAM. If your PCB had space left for the ... -
Problem upgrading 16K SpectrumHello Spec-chums, I've been a long time Commodore user, but also a long-time Speccy admirer (and emulator user). I've recently got hold of a Issue 2…
... you're using. Issue 2 PCB's often come with a ... -
Problem upgrading 16K SpectrumHello Spec-chums, I've been a long time Commodore user, but also a long-time Speccy admirer (and emulator user). I've recently got hold of a Issue 2…
[QUOTE=mcleod_ideafix;312335]Issue 2 PCB's often come with a ... -
Another badly behaved RAM upgradeI have a 48K issue 4A board (yellow it is) that was a 48K machine from new, but only reports 16K working with the Sinclair ZX Test ROM in an Int2. H…
Is the solderings on the socket ok ?
Double-sided pcb, you know......
May be that the socket don't have contact with both sides of the board. -
Another badly behaved RAM upgradeI have a 48K issue 4A board (yellow it is) that was a 48K machine from new, but only reports 16K working with the Sinclair ZX Test ROM in an Int2. H…
...
before going for mechanical (PCB) problems.
There exists no ... -
What computing platforms do you have in the house?Just took delivery of my first Mac so now in our house we have: Study: HP Compaq desktop running XP Living room: Dell laptop running Vista (spit)…
... work, one with a borked PCB for spares), toastrack 128K (awaiting ... for electronics (displaying schematics and PCB layouts while I assemble them ... -
Suggestions for Mr. Rich MellorRich, is there a chance any of these things could be available from you in a near future? -AY interface for 16K/48K Spectrums -PS/2 keyboard interfa…
What I need to do is shrink down the diags board PCB (it's currently optimized for home etching, so is reasonably spread out) to get a small run of PCBs made. -
Multiface3 and Divide combinationI recently bought a Multiface3 from ebay, I haven't got it yet but I was wondering... since the MF3 has a through port (the one i got), will it be co…
... 'm going to have some pcb's made for a 128 ... -
RGB on 48KIs it possible to get better picture (RGB, or at least composite video) from ZX 48K without opening it? (using the expansion port only) I think there…
... lit up on the MA20 PCB. I ended up finding the ... -
Need FPGA advice for building a 24 port Ethernet hubNot Speccy related but know some of you guys have done FPGA work. Boss at work wants me to get 50 x 24 port Ethernet port hubs designed to replace k…
Are you building this in-house (i.e. laying out your own PCB) or farming this out? I can only find the product brief on the BCM5228 so far - what does it provide to connect to your FPGA - 8x MII ports? At least it's not available only in BGA packages... -
Need FPGA advice for building a 24 port Ethernet hubNot Speccy related but know some of you guys have done FPGA work. Boss at work wants me to get 50 x 24 port Ethernet port hubs designed to replace k…
... .e. laying out your own PCB) or farming this out? I ... units but maybe outsourcing the PCB build depending on the final ... -
Spectrum Ethernet updateWell for those of you who don't follow the news section on the project page, here's a quick update...and a request. Development has slowed a bit, si…
... the most expensive component (the PCB) is priced in US dollars ... in US$, unfortunately). Fortunately the PCB maker hangs on to the ... -
Spectrum Ethernet updateWell for those of you who don't follow the news section on the project page, here's a quick update...and a request. Development has slowed a bit, si…
It'll be next year some time when I make some more with the "production" PCBs. (There was a bug on the prototypes, it's only a minor one though). I also need to test the through port on the PCB which I *still* haven't done yet. -
What did you do before WOS?Around 1992 I was still a very active Spectrum user, but had no one to talk about it. The stores stopped selling my favorite magazines and I was left…
... where they went into the PCB connectors...), there wasn't much ... -
Need FPGA advice for building a 24 port Ethernet hubNot Speccy related but know some of you guys have done FPGA work. Boss at work wants me to get 50 x 24 port Ethernet port hubs designed to replace k…
... the schematic and do the PCB layout, let alone all the ... -
Hello all, +3 questionHi, Been using this site for ages but I don't know why never joined the forum..? Anyway I have a +2 but just got a +3 it clearly has the sound issue,…
... was a mistake on the PCB layout.
Anyway, if ... -
Need FPGA advice for building a 24 port Ethernet hubNot Speccy related but know some of you guys have done FPGA work. Boss at work wants me to get 50 x 24 port Ethernet port hubs designed to replace k…
... agree. This gives a schematic, PCB layout, HDL code for Altera ... -
divide+ questiondivide+ should work on both ZX 48K and ZX +3, right ? where can we buy divide+ from?
... way you can shrink the PCB down quite a bit which ... runs (or make a nicer PCB for the same cost, for ... to a DivIDE+ but the PCB looks to be about 1 ... SMD with a 4 layer PCB.
The nice thing ... -
Spectrum Ethernet updateWell for those of you who don't follow the news section on the project page, here's a quick update...and a request. Development has slowed a bit, si…
... technical skills can make one - PCB layouts, schematics, and source code ... want to roll your own PCB, since I have 36 of ... -
2008 Lookback/2009 Lookforward ThreadSo, what have we done this year? On the YS site, I've added the Virtual News Stand (the clickable double-page magazine spreads you see dotted around…
... the "production" version of the PCB made for the Spectranet, and ... -
Inside the ULAI've recently updated my Blog with the news that I've managed to get inside a 6C001E ULA and have got close up images of the die. I'm currently back-…
... about cramming it on a PCB :-)
Incidentally, I have ... -
Multiface3 and Divide combinationI recently bought a Multiface3 from ebay, I haven't got it yet but I was wondering... since the MF3 has a through port (the one i got), will it be co…
... 'm going to have some pcb's made for a 128 ... -
Multiface ONE vs Multiface 128Hello, Bit of a silly question here, but i couldn't really find any information about this. I have a Multiface ONE and if try to replace its EPROM w…
... also attach a thru-port pcb to the back of the ... -
4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?
... this). Don't hold the PCB upside down though because all ... />
Note that the Spectrum PCB has LOTS of solder, you ... -
4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?
... .
* Design a nice small PCB as plug-in replacement -
Inside the ULAI've recently updated my Blog with the news that I've managed to get inside a 6C001E ULA and have got close up images of the die. I'm currently back-…
... 've got most of the PCB design done.
What has ... -
I killed my Spectrum last night...*sobs*I got all nostalgiac after watching Labyrinth last night (a festive tradition), and felt the need to get the Speccy out. I played "Rookie" (with the …
[QUOTE=DEATH;325829]It would be an idea to somehow source a supply of these little op amp chips Mr Sugar used for these tape deck PCB's......[/QUOTE]
The chip used is the LA6324. And you can use the LM324N chip as a remplacement.
