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- Опубликовано: 18 сен 2024
- Mailbag Monday
Yes, I know the lighting and sound isn't great yet in the new lab, working on it.
Forum: www.eevblog.co...
SPOILERS:
Awesome recreations of the Byte front covers: bytecovers.com/
www.galacticst...
www.vintagefree...
Expanded scale 5V voltmeter
Russian multimeter and calculator
Casio Data-Cal 50 calculator
Nintendo 64 N64RGB upgrade board
etim.net.au/n64...
Delay line
Battery in-product current measurement
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I am the guy who sent the soviet stuff, nice to see it here in video. I was also surprised that the main chip in multimeter has a newer date than the one stamped on the back. This could be a warranty case, so maybe it was just replaced later. And as far as I know, the original owner of this device was a rather creative engineer, and I have seen a lot of these pale pink wires across his DIY devices, so it also could be his job.
Thanks.
That calculator looks very much like a typical TI scientific calculator. I wonder if it's a clone of one, or just has similar styling?
That little board is an RGB mod for the Nintendo 64! just look at the board number on the bottom left! Lol
I was gonna say that as I noticed the n64rgb at the bottom
etim.net.au/n64rgb/ "The N64 doesn't output RGB video, only encoded composite video and s-video is available on the A/V output port. It's best to use RGB video for the best looking picture. This board can be installed into any model of Nintendo 64. Digital signal from the from the graphics processor enter one side of the N64RGB and analogue RGB video comes out the other side."
For anyone considering one of these, keep in mind the N64 forced software AA in basically every single game, so it's still gonna look like a vaseline smeared mess even with RGB output :)
Check out My Life in Gaming on youtube if you wanna know more about getting the best quality out of old consoles.
That's what I thought when o saw the altera and the RGB
but on new tv make image a bit more clear but not doing black magic still loks like shit xD
I bet that schmitt family is easily triggered.
see yourself out
Quality stuff right there
Yeah, they get amped op about anything.
Once they're angry, they're hard to calm down
Resistance is futile.
The new mailbag corner looks so tidy. I'm curious how long this condition will last.
Color looks a bit muted though.
Steven M. - Lights aren't set up properly yet.
it looks weird. Hope it gets messy soon.
Until the end of the video
a few mailbag videos
Byte magazine - a first class publication! Thanks for the memories Dave!
11:44: service center addresses
Megumi_kun -spoiler alert.
@@HighestRank Dave asked for it anyway, why would you consider it a "spoiler"?
I don't even read a single letter Яussian and I guessed that much.
And phone numbers
11:44 its a repair shop address book of all USSR 13:33 its a palladium-silver capacitor (some like NP0)
in the brochure to the soviet calculator are the addresses of all official repair shops of the USSR
big sheet with electronica mk51 is probably list of service centers around the country.
Ah! Makes sense.
The card that came with the calculator is a list of addresses of authorized repair centers.
Soviet IC date codes indicates the month of the year not the week. :)
That 1991 display driver may have been one of the last Soviet chips made...
The IC and probably the LCD were retrofitted, seeing the meter itself has a date stamp of April 1988 on the type plate. I assume a flatcable was originally fitted.
18:20 In Soviet Russia, multimeters probe you..? :D
Those soviet stuffs are pure amazing. There is a youtube channel named Msylvain59 who teardowns all old missiles etc. Cable lacing and coating on these pcb's are plain perfect.
Thanks m8. I just checked him out and subbed. Interesting things.
^Likewise^
Thx for the reference
I'm following msylvain59 too. I always find Soviet electronics amazing because they look half-handmade and very professional at the same time
In Soviet Russia meter probes you!
My brother taught me how to lace wiring with running knots back in the late 60's- he was an Air Force electronics tech. I've still got a partial spool of waxed lacing cord he gave me from back then.
Fun, like being back in past, the lightning and sound are so out of date this is such fun!
That's a rgb board from Tim Worthington for a Nintendo 64. (He's from Australia too by the way.)
this is #1148 ?
EEVblog #1147 - Mailbag
EEVblog #1147 - 1 Cent Regulator! That's MAD!
Oops, will fix that.
The Altera video board thing is an upgrade kit for a Nintendo 64. The N64 doesn't output RGB, only encoded composite and s-video, so with this kit, some very careful soldering, and some extra adapter bits depending on the version of your console, you can make it output analog RGB.
One side of the board gets a digital signal straight from the graphics processor, and then converts them to an analog RGB signal for improved video quality on an otherwise original console.
Suggestion: Maybe reshoot the mailbag outro, just for continuity's sake.
I made a simple Go-No-Go voltage checker for the field techs where I used to work, It just had a Tiny micro and a couple of LED's plus some protection for the power/ADC lines, you taught it the Go/No-Go limits by shorting a pad on the PCB and it stored the ADC values in EEPROM then it was mounted in a clear connector shell so they could see the LED's. It was for use on a 24v vehicle CCTV system and didn't need to be massively accurate.
The IC in that Casio calculator reminds me a bit of the ones in perestroika-era Soviet calculators where they were bonded to a glass carrier.
Hi, I was born in Poland in 1977 and I remember those switches when I was disassembling stuff as a kid.
that train runs on magic smoke
You never stopped learning - that delay line amazes me. Who would have thought that you can store data in a solid state acoustic wave over multiple reflection reliably?
23:40 the board is for adding RGB to the N64
I loved Byte magazine. Learned a lot about a lot of things. The Circuit Cellar column was always a good challenge to understand.
Love the in-line battery current PCB ... simple practical idea for a tricky job.
22:49 that is a Nintendo 64 RGB mod kit
yep etim.net.au/n64rgb/instructions-new/
"N64RGB12" on the pcb is the giveaway
if i pay for the postage, can i have it? i have been wanting one for a while
Does RUclips now allow videos to be edited after uploading? Because there's a bunch of stuff overlaid on the video showing exactly what it is and how it's installed. But your comment and the others saying the same thing imply that that stuff wasn't in the video originally.
I have a piece of dual sided copper clad with wires soldered to both sides for inline current measurement, really useful!
If you think that Soviet multimeter is howyadoin', you ought to see the 1992 RITM-2 synthesiser I'm currently restoring. Wooden chassis, the mains fuse is literally a piece of bare fuse wire soldered across the power switch, and all the primary-side power wiring is the same tiny hookup wire used on the PCB. The hinges that hold the keyboard are a household cupboard hinge that's been cut in half with a metal shear to make two (resourceful!). The main PCB looks like it was etched in someone's kitchen, down to being covered in scratches and gouges from where someone's scrubbed off the resist with a brillo pad or something. The circuit is basically a Moog Prodigy with one VCO lopped off, to the point that the schematics are laid out almost identically to the Moog ones.
I could go on and on, there's something hilariously wonky about almost every single part of this thing.
Lovin' the old Soviet calculators. I have a few in my own collection! It's fascinating how anachronistic some of the parts feel, like parts from a few eras were just laced together (always the wire lacing), and almost always done in what seems to be the most labor intensive manner too! I love it!
New mailbag nook looks great Dave!
Love those square Russki ceramic caps in that moldymeter.
the "f1" shirt...is Will Power..aussie guy who won indy500 this year...ill take one if you dont need them all! :P
your new corner is looking good!..the battery current boards are great idea! definatly 'pool room' material!
HISTORIC, First mailbag from the new lab. Looks great Dave, so neat ~ and I love those three Simson analog meters on your right. Loved the Byte prints, that really took me back, '78, '79. Always look forward to the mailbag! Thanks...
Used to love Byte ... and Dr Dobbs ... and going way back, Creative Computing
Love that the outro clip is still in the old mailbag spot ;)
that 5v rail display would make for an interesting inclusion for a retro pc build
most likely, the russian booklet that comes with the calculator lists all the locations' addresses throughout the USSR where you can repair the stuff under warranty
The 63.943uS delay line is the chroma (colour) delay for something that decodes PAL colour TV signals, likely a TV or VCR. You can tell because that's the period of a PAL horizontal scan line, & is required to provide the chroma phase signal from the previous scan line that the PAL system uses to stabilise the colours in each scan line, making it superior to the older NTSC system - NTSC equipment doesn't use a delay line.
Yes PDL is obviously PAL Delay Line. The delay is not exactly one horizontal scan line time (64 microseconds) but 283.5 periods of the subcarrier (4.43361875 MHz). Only the chrominance signal goes through the delay line. That simple relationship to the subcarrier frequency aids the separation of the two colour difference signals that are quadrature modulated on the subcarrier.
Ooh! I used to read Byte Magazine all the time. The program listings were loads of fun. :)
Ohgod, that little board is going to be inserted into so many spare corners of panelized boards... That is one heck of a good idea...
Dave. Soviet electronic often came with the schematic bundled in.
I have to check out my old Byte mags now.
Never noticed before that the last part is pre-recorded. The new lab makes it obvious :-)
That multimeter looks like a direct copy of the Fluke 8020A, an early example of which is sitting here waiting for me to get around to replacing the failed LCD.
I still have my Casio Datacal 50 in a box somewhere... got it back in the early 90' I think..
RGB and Composite sync, not chip select. Hook it up to a TV and see what shows up on screen!
I really like this corner setup, much better looking than your previous setup
10:21 the first tab you lifted was supposed to be tucked inside the box and not folded over the top.
I instantly recognized Tim Worthington’s N64RGB. FYI: He’s a fellow Aussie, world-renowned for his products like N64RGB and NESRGB. :)
I recently flashed one with Peter Bartmann’s “Deblur” firmware using an Altera ByteBlaster/USB Blaster. I still prefer Marshall Hect’s UltraHDMI, but it makes no attempt to deinterlace the few 480i games that are out there, so Tim’s board still has a reason to exist. Without it we had to find early model N64s that needed an analog RGB amp but this one taps into the digital output of the GPU and can restore RGB to the later models.
These guys are better known by other names:
Viletim/eTim, borti4938, MarshallH.
The CS# pad is for TTL level CSYNC and the other one is for 75-ohm impedance CSYNC (standard for consumer RGB-compatible televisions).
You might try painting the walls behind the shelves a darker color. It'll make you and your "background" of stuff pop a bit more. Looks a bit "how you doing" at the moment.
Was going to comment the same thing or at least some sort of color on the walls.
And because of this single youtube comment, Dave immediately drove to his local... bunnings? masters?(idk what hardware store they have down under) and bought paint, rollers, etc, drove back, and took everything that he had put up on the shelves back down , took the shelves down, and painted the walls a slightly darker color.
Yep this shot needs some colors imho
The lighting is not sorted yet for starters.
@@EEVblog i'd go for a fluo pink for the table esd mat 👌
I used to write software once in a while for Steve Ciarcia's column in BYTE.
The only real difference you will see in a fibre connection, or ADSL, throughput wise, is by shortening the distance between the ISP multiplexer and the modem. Unless there is a fault on the copper pair going into the premises, then changing the copper pair is unlikely to reduce the signal loss, which results in a lower throughput. Length of run is nearly always the deciding factor is a stable signal, which determines the throughput. Cat 6 and other cabling being talked about is mainly when referring to Ethernet, which isn't used, until after the modem in the home.
ON the Russian scientific calculator, I wonder if the resistors at the top might have been for a display light, or more exotically, a display heater to get contrast back in very cold conditions, after all it might get used in very cold places.
A bunch of cool stuff. Great video!
I have one of those datacal 50 units!
Thank you Dave!!! Great as always and great to see ya in the new spot!! I DIG IT! The coolest thing I have ever seen though is that analog delay line. HOLY CRAP that is awesome!!!! :-O
@EEVblog that multimeter was manufactured on April 1988.
Digital Micromultimerer MMC-01, costed 95RUB
МК stands for micro calculator, I think. And that piece of paper is a list of repair shops across the Soviet Union.
The back panel of that Soviet DMM shows it was made in 1988. Either the chip with "9104" was put in after or that number is not a date code
the russian calculator and meter are made by Electronika, the text on the back of the meter says micromultimetr
love your new lab mate!!!!
Every time I see Dave and his knife I think it would be nice to see him wear an eye patch, in a pirate style 😅😅😅
13:57 my first DMM!!!
I can imagine the designer on that N64 mod board had that tape placed there to cover his mistake. "It's very important, if you don't the electrons will fall out!"
I didn't have time for a 30 minute video, but I didn't want to miss any of it, so I ran it at 2.0x speed and enabled the auto-generated closed captions. It was great! Though the speech was often hard to understand, the captions were easily readable. A 30 minute Mailbag in 15 minutes: Win!
It places were MK51 calculator can be repaired (service centres adress and phone ). No its not crystal its zener diode
22:16 Jeez! I'd sure like to receive a Nintendo 64 RGB video mod _by accident!_ 😏
found a link for it. lol etim.net.au/n64rgb/
Congrats with the new location and successfully refurnishing the mailbag 'corner' , like the analog meters !
Waiting for the subtitling before watching this video, almost can't wait but want to know what u ramble ;)
Calculator: Thermistor for lcd contrast in cold Europe.
Love how you moved back to the old lab for the end screen XD
watch tomorrow's videos today ! ( in select timezones )
pity all the best stuff is no longer made in Nippon
Looking good with the new mailbag corner. Like it. Needs a bit more crap on the shelves tho ;)
The name of the calculator appears to be simply "Elektronika" - I can only read cyrillic letters, so I don't know if there's any more grammatical meaning to it. But I guess it's an obvious enough name!
The multimeter says "Mikromultimetr Zifrovoiy, elektronika MMZ-01" or something like that, the ц character doesn't have a latin analogue, the closest is like Z as in pizza.
Edit:
Love the CCCP emblem on the backside of the calculator! Below, it says (approximately) "Mikrokalkylator Elektronika".
The translation suggesions is actually the same one made on Wikipedia ( en.wikipedia.org/wiki/Tse_(Cyrillic) ), I myself got the same translation from a Russian teacher who has been helping me learn. That said I agree with you, the "ts" avoids the conflict with Ze. I think it depends on what your point of view is; here in scandinavia, we use a pretty pronounced "ts" sound in "pizza", so for me the translation always made perfect sense (our "z" is very different from English). @@george.b.
@@Mythricia1988 I guess that's the most usual pronunciation of "pizza" most everywhere :) and yeah, local transliteration customs can be kinda different. Estonians, for instance, use "õ" for ы, which I think is pretty weird, but in their context it makes sense. My particular point of view, however, is derived from transliteration standards: en.wikipedia.org/wiki/Romanization_of_Russian
The article you linked even states: "In English, Tse is commonly romanized as ⟨ts⟩. However, in proper names (personal names, toponyms, etc.) and titles it may also be rendered as ⟨c⟩"
...in the words of Andrew Tanenbaum, "the nice thing about standards is that you have so many to choose from".
Fantastic mailbag this week !
(10:53) Igor is pronounced "eeguh" (rhymes with eager), I believe.
(At least the Russian pronunciation).
I'm sure someone will correct me if I'm wrong.
(17:03) - I don't think it was a case of : "couldn't be bothered doing a ribbon", much rather an excuse for another job or position at the factory, (perhaps for Igor's cousin?).
Remember, in a command economy, such as it was back then in the Soviet Union, profit was not the motivating factor, nor the driving force.
13:18 I would very much guess its a led, since they have a much more stable Vf at extremely low currents than zeners do, to get a stable voltage for the cpu. You could see them in many calculators back then and even long way into the -90.
New mailbag setup is cool
I think you need more and different light at this part of your new lab. But the set up looks cool, a lot of space.
Careful with that knife at 29:46, YT might think this is a knife advocacy channel!
Loving it, Looks the same as it did, but cleaner and tidier... Also, the sound is better, it's not as echo'd, has a 'soundbox' effect.. but I like it, no background noise like on the other...
That driver chip looks like it was recently replaced. Everything else has conformal coating except that one chip.
25:00
Wow...I feel so judged for my beginner designs right now(that are way worse than this).... com'on Dave! Did you have to roll out the red carpet for this walk of shame?? I feel like Chewy at the end of A New Hope.
*Voice: Seinfeld Soup Nazi
" NO METAL FOR YOU!!"
Note to self: ALL back side of PCB traces = International shaming.
...back in 3 months... I'll be in KiCAD if you need me...
-Jake
I heard topoR can beat you and complete the no via's, no holes pcb layout challenge on it's own....
So nice if you want to use toner transfer etching and not use a drill....
bodge wire or trace which as more shame?
So, your PCB was the one with the 2 traces on the 2nd layer? Bummer. Doing digital layouts on a single side is always a challenge. Could be worse though; you needed a ground plane anyway, so the jumpers didn't triple your cost, & back in the day, we would've had to use wire jumpers instead.
@@theantipope4354
I wish I could claim a design like this as my own. This example was much better than what I've done thus far. Heck, I have only managed two DIY etching runs of boards on a larger scale (18in × 12in SS CEM). I've done around a dozen etches of smaller boards of my own designs including a couple of double sided ones but nothing too fancy. I'm still learning the obvious stuff like proper orientation of jumpers North/South & East/West only.
Just before watching this I was working on a board I designed several months ago and had just etched. I was populating it when this video was uploaded, and literally took a break to watch this because I was super bummed at how hideous my inconsistent diagonal jumpers look on an otherwise decent looking (IMO) and symmetrical design....then Dave aptly joked about this little thing...and...well... that board has been shoved aside while I work on other stuff ever since.
I removed the jumpers and plan to replace them with point wiring on the bottom eventually, but still, stuff like that is a bummer considering the time spent/wasted.
-Jake
Had this soviet calculator back in the school. Was great at a time, a lot of functions, except for common power switch contact problems. You have to push power switch not all way up to make it work. And extremely low power consumption, battery last forever. Definitely design was a copy from the west
Yes, I still have one of this calculators Электроника МК51, and it sstill works! About documentation with it - this is list of service center addresses in USSR. Also this green element near SMD capacitor is also a capacitor but tantalum one. I suppose the processor in this calculator has no crystall but the RC circuit instead for clock generator.
And yes, I can read this and translate it to you if you need it.
Always love mailbag!
Geez, you better subscribe with the way hes telling you to while waving that knife....
Dave has obviously been to the Sunshine Tafe beauty academy :-)
And I almost won the lot on the Price is Right!
Page that came with calculator contains warranty service addresses.
"I guess they are into Formula1" Do'h!
That could almost have been intentional. Almost. :)
Talking about chips in the old days, in the 90s IBM used to have an ASIC tool called "Build Gates" :-)
12:40 … might the resistors be for contrast adjustment based on ambient temperature? So you can still read something in Siberia?
It's so clearr
Loved Byte. Still have my issues, starting with the .01 centennial issue.
I guess the only thing he couldn't reproduce was the totally messed up color-code of the drawn resistor! (Is that a RED body?) (3:19)
You can use your phone and google translate to live translate text with camera.
That shirt was a Will Power racing shirt. he is an Indy car racer from Aus
That Russki "Multimetr" was built in April of 1988. Just a tiny bit older than me :D
I've never seen a chip on..? Whatever that is before with the in plane leads going to a cutout like that.
29:42 I see my opened package on that piece of 'old' footage. (from #1133)