The Soviet Sputnik Model Project

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8 ай бұрын

Finally Comrades! Glorious Five Year Project can be told! Here I combine all the videos from the 2017 project to reproduce my own version of a Soviet Sputnik museum model from 1957. Enjoy!
Join Team FranLab!!!! Become a patron and help support my KZfaq Channel on Patreon: / frantone
#franlab #USSR #Sputnik
- Music by Fran Blanche -
The links:
Race for Space - Objectivity #32 - KZfaq - • Race for Space (feat. ...
Brady Haran's Blog - www.bradyharanblog.com/blog/20...
Public Service Broadcasting - • Public Service Broadca...
The Royal Society Sputnik Schematic - static1.squarespace.com/stati...
My corrected Sputnik model schematic - www.frantone.com/designwriting...
Hackaday Blog: Sputnik’s Transmitter Beeps Again - hackaday.com/2016/02/23/sputni...
Fran on Twitter - / contourcorsets
Fran's Science Blog - www.frantone.com/designwriting...
FranArt Website - www.contourcorsets.com

Пікірлер: 301

@blg53 8 ай бұрын

A fun fact: in russian language Sputnik (pronounced spootnik) means a travelling companion. It is also used in space terminology to mean a satellite. So the expression "sputnik satellite" is basically "an oily oil".

@heyhoe168 7 ай бұрын

This is why english technical vocabulary fits so well into russian language -- it essentially doubles amount of applicable terms.

@ReeDeRstream 7 ай бұрын

Да это так. Еще можно уточнить. В СССР (да и в россии) точная терминология всех спутников "исскуственный спутник Земли". Подразумевается что естественный спутник земли это Луна. Луна наш настоящий попутчик которого нам дал Большой Взрыв.

@hpr895 6 ай бұрын

А ещё вам специально не переводят слово Soviet, чтобы американские рабочие не догадались...

@jeanherndon4536 19 күн бұрын

I love this fun fact. Sputnik 1 was like a buoy launched into this new ocean, outer space. Ike Eisenhower was actually glad when Russians were first to launch a satellite.

@-jeff- 8 ай бұрын

I remember my grandfather had newspapers from the time of Sputnik. One of the articles was telling people to please do not try to shoot it down with their rifles.

@bornach 8 ай бұрын

It's reassuring that Americans today don't have to be told not to try shooting down spherical objects launched by foreign nations as they float across the US of A

@ImaginationToForm 8 ай бұрын

Some still shoot at storms. @@bornach

@Mydtys 8 ай бұрын

R muricans that r taded?

@matthewmiller6068 8 ай бұрын

@@bornach Now they have to be told not to shoot at wind and rain...I don't think that's an improvement.

@ImaginationToForm 8 ай бұрын

Some are unfortunately. @@Mydtys

@skfalpink123 8 ай бұрын

When I was teenager, I made a similar device, although instead of a speaker, I impedance matched the output to a high-energy piezo that I bonded to my bedroom window. The effect was surreal. There was almost nowhere in my village where it couldn't be heard, yet it was impossible to trace the noise to a specific place - it just seemed to come from everywhere. Some people even thought they were hearing things - which I thought was hilarious. Happy days!

@scottlangille9900 8 ай бұрын

Thanks you for your experience in figuring out Sputnik signal. You have a beautiful smile and look awesome today Fran. Best regards

@SnoDawg 8 ай бұрын

I was 5 in 1957 and Sputnik is one of first things I vividly remember, and it made me immediately interested in the space race. From then on I followed the space race and the NASA program.

@winstonsmith478 8 ай бұрын

People who claim to have watched Sputnik passes with their naked eye were actually seeing the VASTLY brighter R-7 core stage. Sputnik: The Space Race's Opening Shot September 29, 2020 "The upper stage [actually the central core - WS] of the rocket was visible with the naked eye, Lewis added, while the satellite itself was visible in telescopes." Sputnik: 58 cm (23 in) diameter (below naked eye magnitude) Core stage: Diameter: 2.95 meters (9.7 ft) Length:28 meters (92 ft)

@lajoswinkler 8 ай бұрын

True. And there was one more part - the nosecone. Three objects, and the brightest one was the core stage.

@KarolOfGutovo 7 ай бұрын

@@lajoswinklerwas the nosecone monolithi, like a single piece that was pushed forward away from the sputnik?

@user-rc4ov1lu1u 7 ай бұрын

I remember building a "Sputnik" audio oscillator in 1976 based on the Ne555 IC. Great video !!

@patrickcardon1643 8 ай бұрын

Don't rattle those transistors!! The cat thinks it's dinnertime!!!!

@NicholasRobson 8 ай бұрын

I heard and saw Sputnik in 1957. Well done Fran.

@gwesco 8 ай бұрын

I heard Sputnik on my Hallicrafters S-38 during that time. I was in 4th grade as I recall. It was fantastic and frightening as well as it basically brought on all of the cold war hysteria.

@shoora813 8 ай бұрын

We must thank washington and london rules for the hysteria. Rulers themselves knew exactly that USSR is ready to launch satellites, and was not afraid a little, because they knew exactly - USSR never had intension to nuke occupied westrn europe, uk or us. Quite opposite - uk/us always wanted to destroy USSR since 1944.

@kkteutsch6416 8 ай бұрын

What band and frequency of transmission russians transmitted ?

@user-bo9ce4mg8l 8 ай бұрын

@@shoora813Вы абсолютно правы! После нескольких войн подряд ( 1 мировая , революция, гражданская война, и великая отечественная) российскому народу нужно было восстанавливать все разрушенное у себя в стране. Остальные страны,считали Россию угрозой,и хотели всячески добить ,, раненого зверя,,. Россия НИКОГДА первая не начинала войн,но всегда победоносно заканчивала!) Мы всегда относились с уважением к тем странам,которые несли дружбу в своих помыслах. И да, мы никогда не считали американский народ своими врагами. Вы такие же люди,как и мы,только говорим на разных языках.

@user-bo8eq7ki5w 8 ай бұрын

Смотреть как женщина паяет электронику ? - это оргазм для души радиолюбителя ))). Обычно они далеки от этого ))

@pens8726 7 ай бұрын

Мы гордились и также Вас боялись. Вырос, понимаю, как это было глупо.

@rd-180union7 8 ай бұрын

Привет из России.Хороший проект и отличная работа.Успехов и удачи в вашем деле.Если подержать деталь из АВС в ацетоновой бане и следов печати вообще не останется-главное не переборщить.

@olegpanin7127 8 ай бұрын

А канал Дискавэр говорит,что советской космонавтики не было.Первыми были американцы,причём сразу полетели на Луну.

@rd-180union7 8 ай бұрын

@@olegpanin7127Лживые западные сми.Пора уже привыкнуть и не доверять этой помойке.

@user-qo7zb6iz4v 7 ай бұрын

@@olegpanin7127 В результате антисоветчины в нашей стране не кто из Россиян не догадался повторить схему первого спутника там ещё и передатчик был на 20-40 мегагерц.Позор.

@user-kn5cs4tz3e 8 ай бұрын

Great episode Fran! I share your enthusiasm for vintage electronics. Have just built the original circuit on a breadboard and it works! The Wien bridge gives a clean sine wave (208 Hz) when the gain of the circuit is correctly set with the trim pot. My transistors are old stock AC151V with hfe about 75. Analyzing the circuit details, I first wondered that, differerent from modern textbooks, the base resistors in the multivibrator are tied to ground. This makes the transistor conduct by the charging current of the capacitor. This circuit, however, did not work with modern silicon transistors. Anyone wanting to build this circuit with modern transistors should tie the base resistors to the -9V rail. I guess that the reason for this unusual MV circuit was a low emitter-base breakdown voltage of the p6g transistor. In the standard MV circuit, the transistor is blocked by a high (positive for pnp) voltage when the capacitor is fully charged.

@dillipphunbar7924 8 ай бұрын

Amazing ...from design through to finished product. You really showed off some of your technological and artistic skills/knowledge.

@dennisrhoads8866 8 ай бұрын

I am a lay person when it comes to electronics, but I absolutely love you're videos. You are very very intelligent!

@michaelpxd6325 8 ай бұрын

You're video quality looks so retro / nostalgic. I love it!

@igorzherebiatev5751 7 ай бұрын

110? Amazing result for the Germanium transistors. Here, in USSR, the average was about 50. For the latest versions that was possible to find. And the sputnik- satellite was built with vacuum tubes.

@xxace_tntxx4289 8 ай бұрын

I enjoy all of your content! Much love Fran!

@user-nm1bm5vb9d 8 ай бұрын

I do not throw away the cut-off leads of the parts, but put them in a box and later use them as jumpers on printed circuit boards or mock-ups and for repairing printed conductors on the board.

@matthewmiller6068 8 ай бұрын

For those struggling to get the adding/dividing of values with caps/resistors... Caps in parallel - like several buckets hold more water Resistors in parallel - like having more garden hoses moving more water faster (and may be uneven, like a bigger and smaller hose move uneven amounts of water, but still more than either by itself)

@jeanherndon4536 19 күн бұрын

As I view this video 1 July 2024 FRANLAB answers my Google search how to build. Marvelous Model. I joined handiham to learn just this kind of technology. Thank you!

@chrisguli2865 8 ай бұрын

Nice project Fran! It's refreshing to see a project that doesn't involve ICs. I learned something from your Press N Peel technique - using a wet cloth! What would be really cool is placing that Sputnik circuit inside a one half or one quarter scale model of the Sputnik satellite - maybe hooking up a timer circuit so it goes off periodically, OR, making a digital Sputnik clock, with Nixie tubes, that beeps on the hour! Just throwing out some ideas for future projects! I wish they still made more germanium transistors as they have a much lower Vbe drop.

@TheBarry1m 2 ай бұрын

You held me hostage with this video, GREAT WORK you are so facinating with all that you do and teach

@r.kellycoker9387 8 ай бұрын

The pitch and pulse reptitation rate were the way Sputnik sent back information.

@materialdialectics 8 ай бұрын

Its possible this comes up later, but from the digging I've done it sounds like the tone from Sputnik had period and/or tonal variation based on a number of on board sensors that the Soviets were able to log data from. I think it was mainly temperature, can't remember whether there was any other sensors on board. But that could explain that variability in the various recordings of the signal; depending whether it was recorded as it transitioned from the light to dark side of the planet or vise versa.

@pipespb 8 ай бұрын

И передатчики Спутника (передатчиков было два, на 40.002 и на 20.005 МГц) были ламповые (vacuum tubes), с выходной мощностью около 1 Вт. На вещательный КВ приемник слушали вы, скорее всего, 20-МГц канал. 40 МГц, УКВ, могли слушать радиолюбители на свои связные приемники.

@idio-syncrasy 8 ай бұрын

I am full of joy to find this KZfaq channel.

@robm.4512 8 ай бұрын

What a great project! Sputnik was about a decade before my time but I still remember adults mentioning it occasionally. I have learned a few things about electronics history from this, all interesting and that Radioshack multimeter takes me back. I’d call the creation of a box that goes both “beep” and “mweep” a very worthwhile venture.

@lklpalka 8 ай бұрын

❤ the bulk eraser and Radio Shack multimeter! Thanks Fran. Memories :)

@JerryEricsson 8 ай бұрын

I can remember hearing it on my Uncle's old floor radio that had shortwave. I was six years old but it made enough of an impression on me that I still recall it. My uncle and dad owned an old Model A truck that had been cut down with the box removed and no cab, they used it in the field to pull the crop sprayer and other chores around their farms. They named it Sputnik after the satellite. The truck still exists, another Uncle has recovered it from the old farm site and has it in his junk pile near town. I can recall the fear that we all had over the bomb and Sputnik just made the fear of Russia worse. Funny how things come around now that the Russians are once more flexing their giant muscles with their return to testing nukes.

@JIUNnF 8 ай бұрын

Байден наверно тоже это считает забавным убивая русских и украинцев ловя флешбеки детских страхов сформированных пропогандой.

@leoalex3271 8 ай бұрын

They have only canceled the ratification of the nuclear weapons test ban treaty, something the United States did not do initially.

@ic99aau1 7 ай бұрын

Мне всегда была непонятна природа страха рядовых граждан США перед СССР и русскими. Ведь именно сша взорвали ядерные бомбы над городами ради психологического давления на противника. У СССР никогда не было реальных планов нападения на кого-либо с помощью ядерного орудия. Ведь убийство гражданских противоречило идеалогии СССР, которая предполагала, что его противником являются не народы, а капиталисты, эксплуататоры. Всё ядерное оружие СССР находилось на территории СССР. В отличие от сша, чье ядерное орудие распределено по всему миру. Но при этом граждане сша, если вспомнить того же Стивена Кинга, до истерики боятся СССР и русских. Причём в 1943 году они аплодирует в кинотеатрах фильмам про русских, которые громят немецких фашистов, а в 1957 они уже в ужасе от первого искусственного спутника. Настроение изменилось за 14 лет. Что за это время произошло? Ведь Советский Союз не хотел начинать холодную войну. Её начал Черчиль, и новая администрация сша. Почему же американцы так искренне боялись русских? Пропаганда? Ведь русские не боялись американцев. Их не учили ненавидеть или презирать американцев. В чем был смысл так накачивать американцев ненавистью?

@TheMacGeek 8 ай бұрын

I enjoy watching your space and electronic project videos. I don’t often comment, but just wanted you to know I watch and they’re quite entertaining. I need to brush up on my electronics skills again, maybe I’ll get a project build kit of a radio to make. I enjoy Raspberry Pi stuff too.

@eduardmeladze 8 ай бұрын

I am a Soviet person and the fact that you call the sounds of the satellite ominous is puzzling.

@spudnickuk 8 ай бұрын

what an interesting project, Thank you for sharing.

@KoRntech 8 ай бұрын

I was looking at ARRL website and they said it was in two frequencies 20 Mhz and 40 Mhz so that alone adds to the difference of how it'll sound. Would definitely need a quality sample to compare how it would sound in 14 meters and 8 meters.

@TomKappeln 7 ай бұрын

Having a working model of a Sputnik is one of the coolest thing i can think of !

@TomKappeln 7 ай бұрын

I have a Terminator and a Terminator arm bust. Hehehehe (Not a Chinese BS mogup, Aluminium and real dentist teeth !)

@williamkapp1110 8 ай бұрын

Great video. Going to build one with modern components. Thank you.

@NicholasScott-id8ow 8 ай бұрын

I built accurate capacitance boxes for use in teaching in 1981 by connecting capacitors in parallel. Congratulations on getting your lab set up and thanks for the great video.

@additudeobx 8 ай бұрын

Paralleling components is also a way to improve (lower) tolerance ratings.

@Sonny_Eclipse 8 ай бұрын

Just subscribed, looking forward getting a kit. I am one who actually saw and heard Sputnik as it passed over head

@richardbrobeck2384 8 ай бұрын

I think this would be a great project that I can build to show the students in the classroom !

@jantonkens9820 8 ай бұрын

The original beep is indeed from before my time (10 years ( but we got remembered about it often enough to point out that spending public money on space was money well spent. And, although for possible different reasons, I do agree that money for space is indeed money well spent ❤

@jadinann 7 ай бұрын

Отличная работа !!!

@chrisgosling5408 8 ай бұрын

One of the issues for early transistors was the variability in hfe or gain. The transistors were either graded by the user or later the manufacturer. This meant A, B & C grades with the three different circuit designs to enable what would be out of design spec transistors to be used with little or no rejects. Things moved up a gear with the advent of silicon based devices. With the capacitors, electolytics cover values for audio but are typically poor for oscillators as the tolerance as purchased is -20 +50%. From my design days in hif-fi I would used metallised polyester layer capacitors availbale at 1 microFarad and stack these and if you feel inclined to, the legs are soldered on so you can strip and make a large value capacitor with tinned copper wire soldered on as busbar style for oscillators and audio coupling capacitors. Very enjoyable video and a refreshing level of crazy or should I say Transistoreeee! 🙂

@lorensims4846 8 ай бұрын

I was eight months old at the time so I wasn't paying a lot of attention to Cold War fears that the Soviets had already won the Space Race. But once I was in elementary school we were all grilled in math and science and all that stuff that would eventually be called STEM (or STEAM), because we had to get at least up to speed with the Soviets. Fortunately, President Kennedy had moved the goalposts and declared a race to the Moon. We always knew we were "Sputnik babies" if only because new schools with new science labs and media centers were being built around us right and left. My younger brother did his best to become an astronaut. He eventually became a pilot for Delta. He first turned me onto Publlic Service Broadcasting. they're great! I have an audio file that is supposed to be of the beep of that original Soviet Sputnik that so haunted our parents.

@Nf6xNet 8 ай бұрын

Wow, you even made a tiny Doppler shift with the overhead simulation!

@user-of2su2wv9f 8 ай бұрын

As a lad of three, I recall my older brother's excitement about Sputnik. I laughed, thinking he said a naughty word "Sputnik". My republican parents were buying into a false narrative that Sputnik was a Russkie weapon to drop on the USofA, that something must be done! Thanks Fran, wonder childhood memories.😮🎉🙏

@scottthomas3792 8 ай бұрын

I had always thought Sputnik was all transistor...not vacuum tube. The most energy dense batteries of the '50s might have been...mercury? There were ( are?) tubes with low plate voltage ( like 12) for older cars. 1N34 was the classic crystal radio germanium diode. Sputnik was about five years before my time.. Cool project!

@mieszkogulinski168 8 ай бұрын

I read somewhere - not sure if it's true - that many tubes can be made to work with low anode voltage, just the currents (and output power) will be low

@scottthomas3792 8 ай бұрын

@@mieszkogulinski168 I know there were tubes with low plate voltage in the '50s, some cars had these tubes...but transistors quickly replaced them. Running filaments on batteries three weeks continuously is sort of impressive. Sputnik must have been 90% batteries....

@mieszkogulinski168 8 ай бұрын

@@scottthomas3792 Not only specialized tubes - I remember seeing a schematic of a circuit using "regular" (not specialized low voltage) tubes with 12 V anode voltage. I can't really remember which particular tube it was, maybe something like ECH81 or ECC88. It had low output power, but it worked.

@rzhevsky4934 8 ай бұрын

Анодное напряжение передатчика Спутник-1 составляло порядка 80 вольт. Просто аккумуляторная батарея.

@fabricegrard1001 8 ай бұрын

Merci Fran pour cette vidéo intéressante

@boredgrass 8 ай бұрын

I love this project dearly! Have a nice Sunday!

@MarioVe2 8 ай бұрын

Great Job, Really Inspiring .....

@garisatkin9744 7 ай бұрын

Bravo, they even provided a circuit diagram for the piping and you have a great understanding of both the installation and the approach to the solution.. 1. It can be simplified (not sent into orbit). 2. You can make it more complicated - design a chip. 3. Make your own HF radio transmitter.With love from Russia (USSR) .

@jshoff725 8 ай бұрын

Awesome!

@cx2uahamradio911 8 ай бұрын

fantastic I loved your project Your videos are very good, greetings from Uruguay

@mikepelletier1399 8 ай бұрын

That's the meter I wanted when I was a kid.

@Communitis 7 ай бұрын

You were wondering how long the batteries lasted. According to wikipedia: "It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It sent a radio signal back to Earth for three weeks before its three silver-zinc batteries ran out. Aerodynamic drag caused it to fall back into the atmosphere on 4 January 1958." So it stopped transmitting three weeks post-launch, at the end of October, and stayed in orbit for exactly three calendar months before said orbit destabilized, burning up upon reentry.

@matthewmiller6068 8 ай бұрын

Woah - this is cool!

@snitra. 8 ай бұрын

Amazing !

@geryalan 8 ай бұрын

So cool you did this! Would it be possible to get the original schematic and build the tube version?

@gregjones3660 8 ай бұрын

Yep

@rzhevsky4934 8 ай бұрын

Схема передатчика Спутника есть в русском журнале "Радио" 4/2013

@danfm1 8 ай бұрын

glad to see youre fine

@CharlesHarpolek4vud 8 ай бұрын

I love to watch Fran

@sirnukesalot24 8 ай бұрын

The tonal shifts were primarily doppler shifting. My Calculus instructor said it was a typical assignment at the time to work out not only what frequency you would need to tune your reciever to at your specific location at a specific time, but also how you would need to adjust that tuning as the night wore on in order to maintain the strongest signal reception. I'm sure somebody, somewhere handed in a recorded tape of the signal as either homework or extra credit.

@user-nm1bm5vb9d 8 ай бұрын

my first successful product at the age of 12-13 was a "meow" generator that produced a cat's meow.

@movienerd202 7 ай бұрын

On September 5, 1962 a 20 lb piece of Russian Sputnik IV landed in the middle of the street on the corner of N. 8th and Park in Manitowoc, Wisconsin. The town has a Sputnikfest to celebrate the event.

@pmcKANE 8 ай бұрын

New upload... hour long. This has turned my day around.

@wetukman 8 ай бұрын

Thanks

@efremkos 8 ай бұрын

Б. Г. Степанов (RU3AX). Передатчик первого ИСЗ. Журнал «Радио» 2013, № 4. стр. 55 - 56.

@leenewton8090 8 ай бұрын

Hi Fran. You forgot to add a link your description for the Objectivity video.

@FranLab 8 ай бұрын

Its in the original posting from 2017... I'll see if its still up.

@viewfromafar475 8 ай бұрын

“Kinda neat” was an understatement. It was wonderful to see your joyful recreation of the seminal satellite signal simulacrum circuit. Truly enjoyable. So evidently satisfying for you. Thank you.

@DavidLindes 8 ай бұрын

Public Service Broadcasting is great fun. And so is your build. :) Also, I don't know if they existed back in 2017, but... in case anyone here (not necessarily you, Fran; I imagine you know) is scared off by the solvents and stuff for the prototype board, there are multiple fab houses that'll do small-run circuit boards for not too much money (especially if the board is smaller than this one)... I just ordered my first board from OSHPark, for example, and am excited to see the results. :)

@someoneelse7629 8 ай бұрын

I didn't hear the original one, since I was totally busy many years not being born, but they sent up a replica to celebrate Sputnik in the 90's, and since I already hooked up my computer to an audio interface for SSTV use, I did record it and saved it to a diskette. On the original, the tone varied a lot, people gussed it was modulating some information, but it was probably just that it wasn't very temperature stable.

@freddynumark2914 7 ай бұрын

it transmitted 4 telemetry parameters

@user-sk7ru3du9k 7 ай бұрын

About beepers... On HFUnderground people make hf beacons with solar batteries and drop them into desert. Some devices work almost 20 years. I make similar beacon for CB band.

@DIOS-M 7 ай бұрын

Схема мультивибратора хоть и является устаревшей но я ее обожаю.

@PocketBrain 8 ай бұрын

What! I have that RS multimeter! Kept it on exactly for transistor reading. And general MM stuff. Still functional.

@halfabee 8 ай бұрын

Sputnik three months lasted for 21 days until the transmitter batteries ran out on 26 October 1957. On 4 January 1958, after three months in orbit, Sputnik 1 burned up while reentering Earth's atmosphere, having completed 1,440 orbits of the Earth, I still have a shortwave radio.

@JohnnieMartynov 8 ай бұрын

Wow, nice job! ❤ Some day I will try to biuld it, with modern transistors - germanium based probably is not possible to buy today.

@richardbrobeck2384 8 ай бұрын

how cool I should use my heathkit trainer breadboard to build this circuit !

@3oo3tube2020 8 ай бұрын

A+ for your project box! ;)

@Kw1161 8 ай бұрын

I bought a bunch of Soviet era PNP germanium transistors on EBAY about seven years ago. I also got a bunch of germanium diodes also. Great project!

@_____.__ 8 ай бұрын

What are you going to do with your collection of Soviet germanium transistors, build another TRADIC computer? 😄

@Kw1161 8 ай бұрын

@@_____.__Well that’s project that I never thought of…yet…😀

@charlieb9502 8 ай бұрын

Lets not forget the doppler shift as it is approaching and departing.

@jamesnoyes8569 8 ай бұрын

You are so interesting & educationally rock on

@mrnmrn1 8 ай бұрын

I'm at 12:30, I bet you the speaker is a telephone earpiece, hence the "T" written on its symbol. Those have 200-300 ohms impedance I think. Poor small signal Ge transistors would let the magic smoke out it you connect an 8-16, or probably even 32 ohm speaker to this circuit. *EDIT* : surprised that it worked with an 8 ohm speaker. I wonder how long it will. 2N404 is 100mA and 150mW, you are probably pushing it over its ratings with an 8 ohm speaker. What is the current consumption of the circuit? At one point, I'll probably build this with Soviet semiconductors (I have plenty of MP41 transistors).

@ParedCheese 8 ай бұрын

Yep. Balanced armature earpieces ended up in a lot of "beeping" applications. they can be amazingly loud if driven hard. 😁

@mrnmrn1 8 ай бұрын

I've seen continuity checkers made with them. Also alarm sounders on gas detectors! @@ParedCheese

@ParedCheese 8 ай бұрын

@@mrnmrn1 Strowger telephone exchanges used to have a "howler" that engineers could put on the line if a customer had left their phone off the hook, holding up equipment. It put a raucous buzz through the earpiece that could be heard rooms away. 😁

@ethanpoole3443 8 ай бұрын

With a 9V battery, the amplifier stage transistor will likely fair just fine as such small batteries are rather limited in both the peak and sustained current they can source under load before the voltage begins to drop appreciably. Could very well become an issue if a more substantial power source were utilized at the same 9VDC, though, assuming the amplifier transistor were driven hard enough (which it may well not be).

@alexanderm7316 8 ай бұрын

Perhaps it was the 2200 ohm resistance I think.The Tone-1"ТОН-1" a telephone earpiece.

@jorgegomes83 8 ай бұрын

25:11 Ah, I seen the supervisor silently walking behind you.

@ducomaritiem7160 8 ай бұрын

Hey, that's really nice! I like to build one myself... Do you have a better (pdf) schematic for me/us? I'm from 1963, was totally into the space rave as a child...

@alistairmurray626 7 ай бұрын

29:36 that reminded me straight away of the warning alarm from the film Alien, pretty sure it was the same frequency (octave lower or 2 in the film), but sped up. "Danger, the emergency destructive system is now activated, the ship will now detonate in T minus 10 minutes". Might have found an easter egg.

@kcahdp 8 ай бұрын

Super!~

@wmrg1057 8 ай бұрын

Sounds like a Dalek about to explode

@analog_guy 8 ай бұрын

Nice project and nice description with lots of good tips. My memory of the Sputnik beeps is that they occurred about once per second or perhaps a bit slower.

@efremkos 8 ай бұрын

ПС1 (простейший спутник №1) . Рабочий наземный образец, копия того который полетел в космос сейчас хранится в Москве, Музей Центральный дом авиации и космонавтики ДОСААФ. PS1 (the simplest satellite No. 1). A working ground sample, a copy of the one that flew into space is now stored in Moscow, the DOSAAF Central House of Aviation and Cosmonautics Museum.

@pluto9000 8 ай бұрын

I'm going to think about maybe making one of these circuits. 🤔 How would I go about making it transmit a radio signal instead of going through a speaker?

@user-lo3bp4mk9n 8 ай бұрын

super gut

@MasterSergias 8 ай бұрын

Платы травить можно раствором - перекись ворода+лимонная кислота+соль

@movienerd202 7 ай бұрын

Yes! 👍

@douglasbutler4360 8 ай бұрын

I always thought the Sputnik beeps were telemetry. Maybe the beep tone was temperature and the beep duration was battery voltage or something similar. If you are going to put something up there you might as well have it tell you some information so you can build the next one better.

@granttaylor3697 8 ай бұрын

Looks interesting, What about the RF stage for 20 and 40 MHz? then you could test it out with your short wave receiver.

@derekcharleslovell 8 ай бұрын

brilliant,

@DarrenDignam 8 ай бұрын

@DiodeGoneWild might have the transistors you're after!

@rh2577 8 ай бұрын

The Race For Space (Remixes) from PSB is such a good album!

@Daveyk021 8 ай бұрын

Where are the kit? Those Germanium transistors are not easy to get (or at lease cheap). The entire moon globe can be printed without supports (I know as I have made 6 of them without supports other than brim). It should be possible to make a partial earth globe for this project for the top. There are Sputnik STL files on-line to make the satellite....

@MrCuddlyable 8 ай бұрын

29:00 I applauded, the cat ran behind couch.

@johannesquivel9739 8 ай бұрын

Fran eres realmente encantadora !!

@igorzherebiatev5751 7 ай бұрын

I wish I could bring you one day a sack with original soviet era transistors and other pieces so you could repeat it with all identity. Thanks for the scheme.