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Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
[QUOTE=roko;768544]I can see only ... worth....[/QUOTE]
Hi Roko,
Cleaned a small ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
Thanks Roko
I now vaguely remember it, but I was probably not taking anything in at that time. It is difficult with this specific post to find anything specific as the post is already at page 69 and growing by the day
Pierre -
Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?
ZX Spectrum Clock Signal Restorer Circuit[SIZE=5][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U][/SIZE] The circuit below is an experimental circuit. It has only been "tested" using…
Hi Roko,
[QUOTE=roko;772112]I thought that balancing ...AVR ZX Spectrum V2_0Good time! Glad to present my new development - AVR ZX Spectrum V2_0. Sorry, have no english version of this video. [url]http://www.youtube.com/watch…
[QUOTE=roko;776476]Impressive.[/QUOTE]
Thank you !AMX Mouse ManualHello everyone! Does anyone have this manual and the ability to scan it or a link where to download the pdf? I found nothing on the web. Thanks in a…
[QUOTE=roko;781089]I prepared a full scan, but somehow can't connect with my hosting site.
Did sent a PM.[/QUOTE]
Thank you very much, your efforts are highly appreciated. PM responded to, email sent.
Gert.Possibly daft Harlequin composite question... :SHi; My Harlequin Rev. F works fine apart from one aspect: there's no composite out... :( I have checked continuity and the discrete components. I.…
@Roko: hi, yes have checked VCC in pins 4,5,14,15: I get 4.99V on all four.+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…
... CF Card - with thanks to Roko (fellow WoS member) sadly I ...+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…
... CF Card - with thanks to Roko (fellow WoS member) sadly I ...Currah Speech schematic?Hello all, I am curious to know how the currah unit mixed sound and RF,but I can't find a schematic. I don't suppose anyone has a schematic or kno…
[QUOTE=roko;818135]Here are the notes ... /> Perfect!
Thank-you Roko, it's really appreciated, nice ...Issue 3 /3b power rail improvements<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal">Hi F…
... passing through the diode that Roko talks about. This upsets the ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
[quote="roko;838229"]Please note that the ... in a Discovery. But what Roko has said is slightly confusing ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... special thanks to Mark and Roko for all the their help ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... . But earlier in this thread Roko said that the one that ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... in a Discovery. But what Roko has said is slightly confusing ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
[quote="roko;838420"]So I did not ... comment noticed! :)
[quote="roko;838420"]I probably should have ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... taken an interest including Mark ,Roko , Andrea and Zub. It has ... me a bit
Roko was proved to be correct ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
Reply to Roko
Some people "swear ... cleaning ,as mentioned above by Roko . Who is right?
