555 vids already?! youre a machine! very nice kit...really really nice condition for its age... the different builds would be for different bands.. and modulations
@Mercury13kiev6 сағат бұрын
At least the USSR attempted to teach Morse code. What a lovely manual!
@derekchristenson57115 сағат бұрын
Oh, there were lots of Morse code projects in electronics kits here in the US back in the 80's, when I was a kid. I had at least four multi-project kits that included a code key. It's a nice, simple thing to work with, easy for kids to understand, and also has a neat historical angle to it. In fact, my city's local museum has (or at least did, the last time I visited about five or six years ago) a couple "telegraph offices", on either side of an exhibit on railroads, each equipped with telegraph keys and receivers, with which visitors (kids being the main target) could try sending and receiving coded messages with their friends on the other end of the room. It is really interesting to see what the Soviet equivalent (one of them, at least) was at about the same time.
@Locoicecream6 сағат бұрын
Hey. Will this also assist on guitar hero dongle as well. Because it’s identical.
@CoreyDukes9 сағат бұрын
I love your videos! One suggestion though... more of a constructive criticism. Is there a way you can try a different mic setup so that you're not breathing directly into the mic? There's been a few times I thought I was listening to an obscene phone call. 😂🤣
@Brfff8 сағат бұрын
LOL, no, appreciate it. I think I was positioning the microphone wrong so have tried a new position. I recently got a pair of Røde mics (Wireless GO) ... one connects to my iPhone 13 that is recording and the other clips to my shirt. I've started positioning the shirt mic. more towards my shoulder rather than directly under my chin. I think that solves the "heavy breathing" issue, but then I get a bit too loud when I'm looking to my left and looking at my computer screen (most recent video, TCE #0555). Ultimately, I'd like to get one of those mics on its own articulated arm ... maybe in January!
@andrewdunbar8289 сағат бұрын
A lot of words are the same or similar between Latvian and Lithuanian an "instrukcija" is one of them. Some also do look like Slavic words though. But nouns ending with -s rules out Slavic languages and if you already know it's not Lithuanian that only leaves Latvian! As a computer a nerd who's also a language nerd it's cool that you always try to figure this stuff out!
@Brfff8 сағат бұрын
I must thank Google Translate. I had two words to work with ... "konstruktors" and "varianti". The box came from Slovakia so I initially tried Slovak & Czech, but there was no match for "varianti" ... but "konstruktors" suggested Latvian. Ahhh! I definitely knew it wasn't Estonian as that's quite similar to Finnish and I can tell a Finn a mile away, so when I got into the box and tried "instrukcija" as Latvian, it translated with no issue. Then, of course, the Russian on the back of the booklet also mentioned Latvian SSR which confirmed it. In hindsight, maybe the "article" ID on the back of the box might also have indicated it ... it ends with ЛАТ ... Latvia? And thanks for pointing out Lithuania ... didn't even think of that!
@andrewdunbar8288 сағат бұрын
@@Brfff Yeah Estonian is totally its own thing but I wouldn't be surprised if it has a few Russian loanwords that Finnish doesn't have. "Varianti" could be Slavic. But the Latvian SSR and the ЛАТ took away any confusion of course. There's different diacritics in Czech, Slovak, Estonian, Latvian, and Lithuanian, but when none of the words have any diacritics you have to rely on other clues.
@Mercury13kiev6 сағат бұрын
Latvian and Lithuanian parted from Slavic ≈2000 years BC, AFAIK. (Yes, I’m right, that’s the main hypothesis now.) And they lived in close neighbourhood, and they are important sources on history of Slavic languages. Estonian is really different language close to Finnish.
@andrewdunbar8285 сағат бұрын
@@Mercury13kiev Yes exactly right. If you're not sure what language you're looking at Estonian has lots of double vowels but has õ while Finnish uses no diacritics. Latvian and Lithuanian both have familiar-looking words that look strangely plural because -s has a different function than in English. But Latvian has a lot more ā, ē, ī, ū than Lithuanian that only has ū but has Polish-looking ones like ą, ę, į, ų that Latvian lacks. I think but I'm not positive that Estonian doesn't have double consonants while Finnish does too.
@MrWaalkman11 сағат бұрын
Very cool! And please make a high quality scan of both sides of the bare circuit board too. There might be someone who would like to re-create it.
@Brfff10 сағат бұрын
Oh, good idea! I'll do that!
@1337Shockwav311 сағат бұрын
Ah yes, lovely KT315B & KT361B transistors :)
@VK2FVAX12 сағат бұрын
I wonder if it can do the 3699khz (80m) frequency.. you'd be able to pick up Dural's automated morse practise transmission.
@lilbill608912 сағат бұрын
My guess for the white box with a paddle is a Morse code key. It was popular back in the day to have an audio oscillator as one of the projects in kits. That would explain the code table in the book.
@Brfff12 сағат бұрын
Oh, of course! Didn't even occur to me that it might be a transmitter option as well ... handy for spies ... "I just built a kit to learn electronics, honestly comrade!"
@peshozmiataСағат бұрын
That would be page 28 (6:03). It's not really a transmitter, just a tone generator and amplifier
@VK2FVAX12 сағат бұрын
I really enjoy watching you try to reads the Cyrillic. It makes me feel normal with my level when I"m trying to do the same thing. Keep practising!
@BrfffКүн бұрын
I think I've figured out the type of screw missing from the keyboard, that I need to replace ... 2mm wide, 6mm long, washer head ... so M2x6 ... ? www.patreon.com/posts/tandy-mc-10-118279630
@estebanvillalobos2303Күн бұрын
the real magic of the mc-10 is the high level of integration with the 6803 cpu and the internal basic is excellent. jim gerrie has ported hundreds if not thousands of basic games to the mc-10. there are internal ram mods and improvements to the 6847 that add more video memory also.
@1337Shockwav3Күн бұрын
Love the lid on that EPROM ... probably is an UV-eraseable one, but then just thought "nah, let's make it OTP"
@BrfffКүн бұрын
Ah, you noticed that! I should've lingered on it more but, yes, they definitely decided to make it a OTP! I've found a simple internal 8KB upgrade that I'm going to try - designing a PCB for it. The machine has a standard 16KB RAM upgrade but this isn't visible to the VDG (separate bus to the expansion connector) which can address up to 8KB www.waveguide.se/?article=expanding-the-trs-80-mc-10-internal-ram
@whetphishКүн бұрын
Thank you. After all these years, I now finally know who the f**k Alice is.
@AK-vx4dy2 күн бұрын
Oh oh... wired connections, we have proffesional here (telecomunication background?)
@AK-vx4dy2 күн бұрын
Beauty, i have something simillar, but keyobrads was naked pcb with like lego keys, but 16kB expansoin was original, but on kind of elastic cable extension. I personnaly added "joystick" working like keyborads from osb, 220V microswithces, rubber hose on some rod and car engine cussions installed in plastics case after herrings. Later i obtained case from late version of my country ZX Spectrum clone and put all (with power suplly inside), it has cheap PC-like keyboard and even bay for 3.5" floppy. It was in early '90.
@twinshobbytwinshobby38632 күн бұрын
Awesome JOB !
@DaveEverett012 күн бұрын
Nice to see it working. I just bought an Alice off ebay in the red carry case, it has the original tape deck, scart lead, several cassettes and manuals
@8bitsinthebasementКүн бұрын
I'd say that you've done well with that purchase. AFAIK that would be the 32k version Alice with built in ML monitor (as it came in the case). A brilliant little system, It's easy verify if it's the 32K you've got it's got an * printed on the bottom label and a ?mem will let you know anyway. Good luck with it
@DaveEverett01Күн бұрын
@@8bitsinthebasement Yes it does have the * at the end of the serial number. I might finally have time over Christmas to power it up. Maybe the MC-10 I bought 3 years ago as well :(
@BrfffКүн бұрын
I stumbled upon a French auction site - looks like a few available there, but mostly "pick up" or delivery only to France maybe ... :( www.leboncoin.fr/recherche?category=15&text=Matra+Alice&shippable=1&kst=k
@BrfffКүн бұрын
Yes, definitely a nice find! I'm assuming that it should be compatible with the Alice 4K/MC-10 even though it has a different (better!) video chip? Same BASIC ... it doesn't really mention anything here: alice.system-cfg.com/hardware.php I find myself starting to fall down the rabbit hole ... "gotta collect them all!" 😇
@DaveEverett01Күн бұрын
@@Brfff I didn't know about the 90, must..resist.. purchasing
@MrWaalkman2 күн бұрын
Pretty little machine! And I have a MC-10 and the keys look the same from here.
@derekchristenson57112 күн бұрын
I'm sure I mentioned this on Facebook, where you already saw it, but I thought I'd comment here about the keyboard: I built the same PCB version awhile back, and I ended up just ordering blank key caps and labeling them in Cyrillic and Latin with a Sharpie pen. "Hand-crafted," LOL! I need to get mine out again and try out some more software, clearly, as you showed off a number of games that I didn't know had versions for the Radio 86RK. 🙂 🕹
@matthewspence32516 күн бұрын
Is this what the acorn electron should have been ? Will it play chuckie egg…
@BrfffКүн бұрын
It should do ... the Master is just a better Model B ... ? More RAM and other tweaks. I'm planning to add a DFS ROM (although you can also load it from the Welcome disk into sideways RAM) so I can access all the DFS disk images
@NotMarkKnopfler7 күн бұрын
What a lovely looking machine - Never seen one of those before. I'm from, and in, the UK. I don't think we had them here? We did have the BBC Master System, but it didn't look like that. 🙂
@Brfff5 күн бұрын
Oh, it was definitely released in the UK! I'm actually surprised I found this one in Australia. It just wasn't very popular from what I understand ... 3½" drive & ADFS meant all of the existing DFS software on 5¼" disk was out of reach (although trivial to sort out today), and useful ports like cartridge, User, 1MHz, Tube and cassette were also removed, with some functionality provided by an expansion edge connector. Interestingly, Olivetti did release a version called the Olivetti Prodest PC 128 S.
@lordabhorn8 күн бұрын
If you check your first video you will see the keyboard connector is turned the other way check it. Also the pmd85 2a was imho modified by some body the memories should be Tesla chips not mostek :-) also the power plug was not original I Gues some other 8080 clone power supply was used instead of pmd10 also the french condos. In the pmd10 does not look original Tesla surely have one
@lordabhorn8 күн бұрын
I found i site with schematics for pmd 85 in today's quality but It won't let me post it here
@lordabhorn8 күн бұрын
Even If I try web dot domain it deleted
@lordabhorn8 күн бұрын
Web is sapi and domain is cz
@lordabhorn8 күн бұрын
Dot cz
@lordabhorn8 күн бұрын
The rest is /pmd-85/pmd-85 dot php
@MrWaalkman8 күн бұрын
Well done! And WTF was the case and board designers thinking when they didn't cooperate and make a place for the board to sit in the case that wouldn't push against the standoff? Just plain dumb. You did solder both joints didn't you? You were speaking in the singular, but there were two damaged pads (actually three, but that is a bent pin and probably not a concern as of yet).
@nojbik9 күн бұрын
Finaly - you fixed it!!! I did trust you, but just in case there was the backup plan with the green pad. 🤣
@BrfffКүн бұрын
The green pad would've fixed it as well I think because those pins wouldn't have been resting on the stand-off directly!
@larrywilliams80109 күн бұрын
Nice sleuthing. I was thinking it had to be a broken joint or trace and the case was flexing the board.
@DAVIDGREGORYKERR10 күн бұрын
Did you replace the faulty RAM chip or what that you found in Osborne I Part IV
@Brfff8 күн бұрын
Yep! Re-ran the diagnostics and everything passed. And more importantly, I could actually load some software - before it was crashing because of that faulty RAM chip.
@DAVIDGREGORYKERR10 күн бұрын
Should you select 40 column instead of 80 column.
@matthewspence325110 күн бұрын
Power it up !
@DAVIDGREGORYKERR12 күн бұрын
I wonder would the floppy drives for a MEMOTECH FDX512 work with Osborne 1.
@viktoruzhgorod12 күн бұрын
The picture youv'e got at 17:00 is typical for a Radio-86RK sans reset. If the reset does not change it - might be the CPU or the ГФ24.
@Brfff11 күн бұрын
Thanks - I should be getting back to this fellow later this week - I have some test PCBs for the video interface arriving, so will have a proper look at the rest of the system
@sega-re-trop-vieux14 күн бұрын
Great video. How can you play a game that was made on game basic ( extension in “.b”) and that I downloaded from the internet? I can’t use the com ( obviously I don’t have a windows computer from the 90’s). However I have a gamer’s cartridge, so I can put it inside but i can’t load it …
@Brfff11 күн бұрын
Thanks. I need to take another look at this as I've got a machine I can install the Windows software on now. If you had a keyboard and could load the BASIC interpreter software on your Saturn, then you might be able to load it from the cartridge (CRAM). Has anyone made a keyboard converter I wonder so a normal keyboard could be used?
@sega-re-trop-vieux11 күн бұрын
@ you can use the official Saturn keyboard
@yarkm1314 күн бұрын
NMI button is "Non-maskable interrupt" which will stop any program and can call a program from the shadow memory (if any is previously loaded), for example, shipped "Monitor MZ80" will be loaded there. Usually, it's debuggers. ВТЦ - (VTC) I believe it's выход телесигнала цветной (television color output)
@rachelaudrey624116 күн бұрын
Please don't replace the board. There's no reason to get rid of the history like that.
@1337Shockwav316 күн бұрын
As he said - it's gonna find a nice home :) Right next to some beloved 128/256k clones from .ru.
@kcinplatinumgaming259816 күн бұрын
shift-break to boot the disk auromatically on all BBC models with drives that contain a !boot file... ! "*." also gives the catalog, mode 7 was common for the ceefax/teletext service in UK. " *ROMS" list banked roms installed.. CONTROL BREAK Wipes the memory .. BREAK KEEPS MEMORY resident basic code.. oh my BBC Micros !! loved them little exspensive machines I could only afford a ZX spectrum back then lol but i coded them for a long time! .. actually the !boot file on a bbc the contents of the file is written in reverse per line??? strange!
@MrWaalkman16 күн бұрын
That's a weird fault. I can't imagine it being your case, but you could put tape down on the screw supports and try it again. And I suspect that while pushing the board down in the audio section, you are raising it elsewhere. So pick up the upper right-hand corner and see if it starts to work.
@Brfff8 күн бұрын
Actually I did use tape - I put it on one of the stand-offs so it would stick to where it touched the underside of the board ... and that's where I found a pair of damaged pins! kzbin.info/www/bejne/fGKZZpR8gdljbpY
@gshingles16 күн бұрын
Yeah, maybe a mechanical issue, or capacitive coupling with the metal label on the back??
@Romychs16 күн бұрын
ЛЕНЯ = Лëня - it is short variant of man name Leonid.
@nojbik17 күн бұрын
Did You try to run it without the green work pad, just on the table? Maybe it's the pad what is making it works 😆
@Brfff16 күн бұрын
Yeah ... maybe I should cut the green pad to size so it fits in the bottom case, then try putting the motherboard in! :)
@MichaelEhling16 күн бұрын
@@Brfff That's it! Or get a new motherboard. :)
@seanwilliams408717 күн бұрын
Works outside case but not inside - sounds like a marginal crack in a solder joint or trace, likely on the underside of the PCB.
@Brfff16 күн бұрын
Earlier I found that flexing the bottom left corner (where the audio circuity is) would kinda-make it work (posted on my Patreon with video) ... but I'm at a loss as to why putting it in the case with NO screws holding it down also doesn't work ... definitely something is marginal somewhere! Even outside the case it doesn't boot on first power-on as seen in this video ... I need to give it a hard reset with [CTRL] + [BREAK] to get everything in order ... I know the VIC has a 555 timer circuit that holds the CPU in reset briefly to allow everything else to come up first ... I wonder if there is similar here ...
@MichaelEhling17 күн бұрын
15:18 ooh, a mystery!
@Brfff16 күн бұрын
Yep - this is what I was talking about on my latest Patreon post! But even if I don't put any screws in, it's not happy ... weird, weird! www.patreon.com/posts/bbc-master-2-dec-117138815?Link&
@DAVIDGREGORYKERR17 күн бұрын
If only that had gone with a ZILOG Z800 or a ZILOG Z8000 that could have had some for of UNIX or gone with the TMS99110 and had IEEE754 Floating point available.
@ristopuumalainen729919 күн бұрын
Where did you learn Finnish?
@Brfff19 күн бұрын
Asuin Suomessa melkein kolme vuotta 1998-2000 ja olen työskennellyt Nokialla 26 vuotta
@Mercury13kiev19 күн бұрын
Is it a factory Spectrum? Looks like homebrew, or some preproduction prototype.
@Brfff19 күн бұрын
The board is the «Москва 128» design and everything else is homebrew/DIY ... definitely nothing out of the factory apart from however the motherboard was produced ... I'm assuming the case is a one-off
@kenknight598319 күн бұрын
Those key caps look familiar. Were they on cash registers?
@Brfff19 күн бұрын
Don't know ... I should've taken a closer look at them in the Part 2 video (kzbin.info/www/bejne/q2nRomVth5yerq8) ... but I will try to remember in a possible Part 3 (installing reproduction «МОСКВА 128» board) github.com/romychs/moscow-128k
@Mercury13kiev19 күн бұрын
Soviet cash registers were mostly electro-mechanical, and their keycaps were engraved, with paint poured inside (looked like a very advanced comptometer). They are probably from some military equipment: I actually saw a couple radar control stations, they did not have exactly these keycaps, but something like. Laser etching or dye-sub were too hi-tech for that time, and double-shot - does it make sense for military? And it’s cheaper (e.g. in cars, where production numbers are great) to engrave and pour paint, like in cash register.
@kenknight598319 күн бұрын
@@Mercury13kiev I feel like I've seen them somewhere, it is a bit of a mystery. A lot of western stuff was making its way over in the early nineties, it looks like they've thrown this together with whatever they could find
@Mercury13kiev19 күн бұрын
@@kenknight5983 Such keycaps are widespread on modern computer-based cash registers. When cash register was an advanced comptometer… they had no room for user’s reprogramming.
@Mercury13kiev19 күн бұрын
@@kenknight5983 Also military and aircraft needed button backlighting, and when they were backlit with bulbs (very small 12V bulbs with two wires sticking outside), the keycaps needed to be physically removed.
@techtinkerin20 күн бұрын
Interesting how the case is better than the real one but the wiring inside wow🤭
@Brfff19 күн бұрын
Yep - it's a well made case, but the inside is a mess. I imagine it would've been quite a chaotic place at the time (just after Soviet breakup), and Moldova remains the poorest country in Europe, hence why I was impressed that "Leonid" aka Лёня managed to get built at all :)
@DolezalPetr20 күн бұрын
the PCBs are a complete hack job jesus christ
@anatolbaskak21 күн бұрын
gather beautiful photos of the ugliest eastern bloc machines!