My electronics and radio notebook from 1963-1965 year. Crystal radio, transistor radio, tube radio

Please watch my latest video featuring this notebook, showcasing my English language notes on the blank spaces and pages:
• My electronics and rad...
My electronics and radio notebook from 1963-1965 year. Crystal radio, transistor radio, tube radio.
These are hand drawings made with an ink pen. I was careful not to drop any ink on the paper.
May be some mistakes are in the schematic diagrams, according to a note.
These are only copies of official papers and books. I am aware of a few issues you mentioned, but some of them stem from the original parameters of the parts. At the time I made these copies, I didn’t have the knowledge to address the problems. I was just happy to obtain any material related to the subject.
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About the crystal radios:
Even if AM transmitters disappear, FM mode will still be available. Check out my FM mode or combination AM-FM mode crystal diode radios.
The sounds of nature are always present. The Earth’s natural sounds, such as whistlers, can still be heard on audio frequencies. Just connect high-impedance headphones to a long telephone wire or a long antenna. Another natural sound is lightning-AM band crystal radios can pick up the sound of lightning strikes..
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You can hear old call signs in the sound of radio stations on my other (uploaded a long time ago) videos.
• GREAT VINTAGE AND NEW...
• RADIO TRANSMITTER ANTE...
• INSIDE OF THE TRANSIST...
• SHORTWAVE TUBE RADIOS-...
• MY TRANSISTOR AND CRY...
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Please look for it on ebay if you want to buy this notebook printed on paper. I put English language notes on empty spaces, empty pages wht you do not see on this video.
Please look for "My electronics and radio diagram drawings"
My electronics and radio notebook from 1963-1965 year. Crystal diode radio, transistor radio,tube radio are the subject.
Can you imagine my surprise when I got back this notebook from relatives after 30 years? It was a pleasant suprise.
All my notes are in Hungarian language.
I started to study electronics and radios in those years. Diodes are Germanium diodes and transistors are made of Germanium, too.You may find some interesting but simple circuit. You can stop the slide show in any moment, take a screen shot or even translate the text with help of Google.

[@paulperry7091]

That variometer crystal set bought back memories (I'm 76).

[@imreolajossr6355]

Can you imagine my surprise when I got back this notebook from relatives after 30 years? It was a pleasant suprise.

[@555-xd1fo]

Why moste of this radio use PNP transistor​@@imreolajossr6355

[@ab1dq593]

Thanks for sharing this. Your notebooks are a delight to the eyes of this fellow radio lover. I still sketch out schematics and keep notebooks of my radio projects, but I don't share your fine eye and hand. The SW station idents from the Cold War era were the perfect audio too. It brought back memories of a wonderful time for radio hobbyists long gone. 73 de AB1DQ / James in CT USA.

[@imreolajossr6355]

Thank you for your kind note. I am still enjoying the radio hobby-check out my latest video. I have never obtained a HAM permit because I am only a listener and do not transmit at all.

[@imreolajossr6355]

I am in Illinois, USA, but I am originally from Hungary, Europe. My notebook is from there. I recently retrieved it after 30 years of storage at relatives. I was so happy to get it back, and I was able to create this slideshow and share it with a few thousand viewers.

[@Woffy.]

Old school, how wonderful to have kept such a treasure it reminds me when I showed my younger cousin how to make a Crystal set. He said to me many years later just before his demise that it was that Crystal radio which led him to his work which I found out later was rather hush hush satellite receivers. There is a certain magic hearing static and a voice from a little wire and a detector. 73 de G8WOF / Wirral UK nnnn

[@imreolajossr6355]

Thank you very much. I have gathered 8100 views on the notebook video. I am happy with these numbers.

[@whippoorwill1124]

Wonderful, Imre - thanks for sharing! This brings back memories; the notebook from my early teens looked much the same. To anybody watching, who also chronicled their hobby with a journal: please don't be tempted to discard it - find somebody to pass it on to, even if it may be years before they recognise its value. Not everything is recorded and findable, even on the Internet, and ideas don't become obsolete just because the technology they were first implemented with is replaced. After a 40-year electronics career I refer more, not less, to original papers and articles, many from a century ago. Engineering's an applied science, so it exists in a historical context. We understand it better when we get the chance to see where modern technology fits on the timeline and how it arrived there.

[@tsbrownie]

So beautifully drawn and documented. You covered it all from crystal radios to transistor and tubes. Thanks for sharing this!

[@imreolajossr6355]

I found it nice too; after 30 years, I got it back from relatives.

[@shtreder]

dad had the same. And one of notebooks was made from graph paper with very small 1 mm checks. Childhoods memories😊

[@camper6285]

Tento notebook má i po 60ti letech stále výborný obraz a baterie se ještě nevybila 👍 Super.

[@imreolajossr6355]

Thank you very much! I was thrilled to get it back after 35 years from relatives and in good condition. As you can see in my other KZbin videos, I’m still a radio hobbyist. I enjoy repairing, building, and modifying older and newer transistor radios as a hobby, focusing mainly on shortwave radios. Shortwave has been a long-time passion of mine, although I never obtained a HAM license. I’m simply a dedicated HAM listener.

[@camper6285]

@@imreolajossr6355 Tak Vám přeji nejen do nového roku hodně zdraví ale ještě mnoho dalších let spokojeného tvůrčího života

[@imreolajossr6355]

I wish you the same. It makes me happy to see that more than 27,000 viewers have watched my old notebook video. I’m using AI to translate your message into Hungarian, which is my native language. I’m writing this message in English for you. Modern technology helps us communicate. I live in the USA, in a suburb of Chicago.

[@camper6285]

@@imreolajossr6355 Ano moderní technologie nám pomáhají, ale bohužel se vždy jako první využijí úplně na opačný extrém jako je válka. Tak se v tom Chikagu které má malinko České kořeny mějte moc fajn. Vám přeje rodilý Čech 🙂

[@imreolajossr6355]

@@camper6285 Happy New Year to you all! Yes, Chicago is home to people of all nationalities. I was born in Hungary, so I am Hungarian. On my father’s side, my grandmother was a Slovakian folk descendant. I don’t have much to do with Chicago itself, as we live 30 miles west of the city. Take care of yourself as well!

[@ReubenSylvester-g2e]

lovely, it brought back so many memories of my childhood and my hand-drawn electronic circuits, all gone now. Your drawings were so beautiful to look at as well. Also the radio station calls signs brought back so many memories too.

[@imreolajossr6355]

The radio calss signs are in my collection but I collected it from other youtube video, many years ago. i found it nice, intersting and some stations I listened on my receivers.

[@vicivici6464]

Как приятно снова услышать старые позывные стран мира . Эти позывные знакомы мне с далёкого детства . Спасибо Вам огромное . С наступающим Новым годом ! Желаю мира , здоровья и процветания . 73 !

[@imreolajossr6355]

Thank you very much! С наступающим Новым годом !

[@RWBHere]

Those Shortwave Radio call signals certainly brought back some memories. Thanks for including them.

[@imreolajossr6355]

I just used wat other man recorded. You can find more on youtube.

[@albertdupond7399]

Merci pour le partage des documents de votre ancien cahier et des ritournelles des anciennes stations radio onde courtes. Thank's for sharing the documents of your old notebook and the jingles of old short waves radio stations - (broadcasts). Happy New Year 2024 and 73' from FRANCE.

[@imreolajossr6355]

Happy New Year to France! I have always been and will always be just a shortwave listener, amateur radio enthusiast, and shortwave broadcasts listener.

[@adamgre6819]

Köszönöm a hozzászólást, nagyon klassz uram! Thanks for posting, very cool sir!

[@RadioHist]

Thanks for posting.... I really enjoyed hearing (again) the unique tuning signals and announcements at the start of short wave broadcasts. I spent a few thousand hours of short wave listening from age 11 to my middle 20s.

[@radiodf]

I have a similar notebook from when I was starting out in Electronics, in the early 70s. It has lots of simple radio and test equipment circuits that I copied out of book in my school library and different hobby magazines.

[@davidvincent8929]

WOW WHAT A GENIUS. WE LOVE YOU SO MUCH. KIND OF FELLOW, ALSO PRESERVATION, AND ELEKTRONIKS.

[@clarefreeman3909]

Thank you for this. It shows that schematic diagrams are a universal language.. I had similar books

[@George-in-the-forest]

very nice. Thanks for posting. The schematic at 1:41, this I have built around 1967. The transistor was OC612 and the diode an OA85(?) . The power giving part tuned to a local MW station with a large outdoor antenna. The receiving part on SW. Good old times.

[@imreolajossr6355]

Very nice, indeed. I was happy to get it back from my relatives, after 30+ years!

[@NebukedNezzer]

this is fun to watch. I was a kid back in those days. most of my home brew stuff was tube type. I still have my wards airline receiver.

[@manusudha4269]

Very neat ! Great document .

[@Лев_Задов]

Отдельная благодарность за позывные радиостанций которые я слушал в эти годы по детекторному радиоприёмнику.

[@Woffy.]

То же самое и здесь, я слушал большие передатчики в ранние часы на GEC BRT400. Идентификатор «Радио Москвы» вернул мне воспоминания, поскольку это была единственная частота, на которой «Дятел» молчал. Ха-ха, а если серьезно, массив Дуга великолепен. Мир. QTH UK Near Liverpool

[@RickO.-vq8oh]

Beautiful! Thank you for sharing!

[@ludwigsamereier8204]

I wish I also had kept such a logbook of my crazy ideas. Your carefully kept notebook is a treasure trove of simple yet useful diagrams. Thank you for the wonderful collection of familiar radio jingles.

[@imreolajossr6355]

I was happy to get it back after 30 years from relatives.

[@ludwigsamereier8204]

@@imreolajossr6355 OMG, what good luck! I think you deserved it. Never before have I seen such a great collection of schematics drawn by hand. IMHO schematics are not only technical documents. Some are pieces of art. In my twenties I copied the schematic of a tube amplifier featuring a ELL 800. I did it in black INK to hang on the wall and was mighty proud of it. When listening to one of my many vintage audio sets I often study the pertaining schematic and rejoice over their inventors´ ingenuity.

[@henrikstenlund5385]

Nice memorires. I started building radios in 1963, from crystal detectors to tubes. I have a notebook too, very similar to yours, with many interesting projects either intended or made to finish in that time. It was a very innovative period in my life.

[@imreolajossr6355]

I have never ceased to be innovative up to this day! I am still using and developing crystal diode radios. For many years now, I have been using an overnight AM band crystal radio without an external antenna to listen to news and sports channels. It operates without a battery or external wires-just the radio with a tuning knob and a 3-foot long wire for a piezo buzzer-based earphone. You can find these crystal radios on my channel. Please search for it

[@henrikstenlund5385]

@@imreolajossr6355 I used such a receiver after trials in 1964. The earphones were of crystal type and I used an adjustable Lead suplhide crystal. Just a piece of antenna and some simple groundingand the local AM station came in strong,

[@andrzejzawada6172]

Ó, milyen gyönyörű. Kézzel készített jegyzetek és önképzés. Én is így tettem, én is ugyanebben az időben tanultam rádiótechnikát a hatvanas években. Nekem is sok kézzel készített, a tiédhez hasonló jegyzetem van. És még több is, mert szenvedélyesen szerettem a rádióamatőrködést. Imre társam, te biztattál arra, hogy készítsek egy videót, hogy megmutassam a jegyzeteimet is azokból az évekből. A 70-es, 80-as években nagyon sok rádiós kapcsolatom volt magyar barátokkal. Üdvözöllek Imre őszintén Lengyelországból , magyar barátom. ...de Sp2EEF and 73. Lengyel, Magyar, két unokaöcsém. És egy szabolcsira és egy pohárra. !!!!

[@imreolajossr6355]

"Kérem szépen, mutassa meg nekem, ha kész lesz a videód! A KZbin videó más, mint egy weboldal. Más, mint kinyomtatni és eladni, bár erre is volt már érdeklődés." "Proszę pokaż mi, kiedy twój film jest gotowy! Film na KZbin różni się od strony internetowej. To inaczej niż drukowanie i sprzedaż, chociaż również było zainteresowanie tym."

[@MirlitronOne]

Ah, the memories! Thanks Imre.

[@Dromidont]

Я свои блокноты начал вести чуть позже. К сожалению не сохранились. Спасибо за видео! 73!

[@imreolajossr6355]

"Мой блокнот был хранен родственниками в течение 30 лет. Я получил его обратно 2 года назад. Это сделало меня счастливым, поэтому я решил поделиться этим с вами всеми! 73!"

[@Dromidont]

@@imreolajossr6355 Еще раз спасибо!

[@tomiozzy1788]

Üdv; Köszönet ! (1:00 kristálydiódás vevő (wc -papírhengerre tekercselve + germániumkristály+tű...), az első rádióm tökéletesen működött a 70-es években !!!

[@imreolajossr6355]

Én még mindig készítek ilyen rádiókat. Úgy látszik, így maradtam. Fejlettebb kivitelben természetesen, de az alapelv ugyanaz. Nézd meg a kristálydiódás készülékeim videóit is! Azokat ma is használom. Nem kell hozzá semmi, csak egy doboz a hangoló gombbal és a fülhallgató. Az elem soha nem fogy ki, mert nincs benne. Kikapcsolója nincs, mert mindig be van kapcsolva. Éjszaka híreket hallgatni egy csendes szobában, kiváló!

[@imreolajossr6355]

Természetesen évekig fejlesztettem, hogy ne kelljen hozzá külső drótantenna. Az is kellett, hogy olyan helyen lakjunk, ahol nagy teljesítményű adók vannak pár kilométeres körzetben.

[@imreolajossr6355]

Természetesen évekig fejlesztettem, hogy ne kelljen hozzá külső drótantenna. Az is kellett, hogy olyan helyen lakjunk, ahol nagy teljesítményű adók vannak pár kilométeres körzetben.

[@voldemarvaglaots6690]

Back in 1990's i was studying for my self tube ampifiication. Had similar one, filled with tube audio diagrams.

[@imreolajossr6355]

I was so happy to get it back after being in storage for over 30 years, so I spent a long time sharing it with the world. You might consider creating a slideshow of your drawings. This is the best way to preserve the beauty of your work for future generations. Instead of fragile paper, it will now exist in the digital world, stored forever on the internet, on KZbin servers. You should definitely do this too.

[@soulrobotics]

Lovely! i also has good memories from the 60'S.... the freedom we used to have... etc. haha

[@staryduren]

Mam podobny z lat 90, chcoiaż nie tak starannie prowadzony - piękna sprawa. Pozdrowienia z Polski!

[@imreolajossr6355]

Latamię się to zeszyt przez dziesięciolecia między książkami. W tym roku odzyskałem go. Skomplikowany proces poprowadził mnie aż do KZbin: skanowanie stron, konwersja na pliki JPG, a następnie składanie ich razem, dodając dźwięk do prezentacji slajdów

[@staryduren]

@@imreolajossr6355 Szép munka, mind az eredeti jegyzetek, mind a videóvá alakítás módja. Üdvözlettel!

[@imreolajossr6355]

A hideg teli napokon elfoglaltsagot adott egy par ora hosszat Mindig kell ujat tanulni.75 eves llettem es meg mindig van mit tanulni. Most mar hasznalom az AI-t is az segit forditasokban de a magyar nyelv az meg jol megy es ekezetek nelkul is megerted..@@staryduren

[@zl8018]

​@@imreolajossr6355 Thank you for your work. To me too it brought back memories from my childhood, when the most awaited things in technical magazines were schematics of simple radios. Language of schemstics is universal, like is the feeling of nostalgy. I admire how clean and tidy your drawings are! Pozdrowienia z Polski, także ode mnie.

[@kamertonaudiophileplayer847]

You still keep it? Nice, I tossed mine long time ago, otherwise it looked mostly as yours. I had also many schematics for tubes. So certainly you are more advanced person.

[@SalvoMorina]

wow..! a time machine for my ears...

[@edwardhigham9538]

Most excellent... Thankyou.... Brilliant 😊😊😊😊

[@Tendragons10]

Nekem tetszett a videód a szépen kivitelezett terveket és lapot jelent a magyar rádióamatőrök történetében

[@greasylox5767]

Thank you so much for sharing, I can't thank you enough.

[@imreolajossr6355]

I think I was even happier as you are now, when I got it back from my relatives after storing it for over 30 years.

[@WECB640]

Exceptionally well done! So much information in such a short video. Bravo. 73 OM

[@imreolajossr6355]

I'm delighted that you like it. I spent a long time drawing these pages, and I was thrilled to have it back after 30 years of storage at a relative's place!

[@Lechoslowianin]

Everyone who was interested in electronics had such a notebook

[@ourlifeinwyoming4654]

Still got my notes. This is great!

[@marekponka3021]

Też takie zeszyciki miałem ! Jeżeli kogoś dziwi naiwność tych schemacików z tranzystorami to proszę wierzyć , że " profesjonalne" radyjka tez były projektowane przez inżynierów , którzy sią dopiero uczyli nowych technologii dla których stałoprądowe sprzężenie zwrotne , punkt pracy tranzystora to była "magia". Było pięknie !!!!

[@gfr2023]

very neat book and drawings, mine seams relicts of the burned Alexandria library.

[@imreolajossr6355]

Books also have their own fate.

[@paramanandchandawarkar2046]

Excellent 👌👍

[@allanegleston4931]

the air checks add atmosphere . the golden era of sw listening.

[@imreolajossr6355]

I used another man's recording because it is perfectly contemporary with my notebook.

[@wizrom3046]

1950's fashion of drawing PNP transistors upside down, technically not wrong, but definitely cute. 🙂 However at 1:16 your battery symbol is wrong, the only actual mistake I spotted from a quick scan through

[@imreolajossr6355]

I'm glad you have the chance to look over my electronics notes. I spent a long time creating this slideshow of the pages. The battery polarity is clearly marked on slide 1:16. Unfortunately, I can't remember the source of that circuit after 62 years.

[@wizrom3046]

@imreolajossr6355 yes the battery polaity makings + and - are correct, But the battery symbol is drawn backwards, the larger plates are + so it should be; + lili -

[@imreolajossr6355]

By the way, these are hand drawings made with an ink pen. I was careful not to drop any ink on the paper. On that specific page, the battery polarity is correct; on all others, it's either wrong or mixed up. However, the + and - signs are correct on all circuits. I do have the original notebook on the bookshelf in front of me, but I’m not going to fix it

[@imreolajossr6355]

@@wizrom3046 I've always used the opposite method in my personal notes. It made sense to me because I consider the body of the dry cell as negative and the tip as positive. This has been my own standard since the 1960s. But, as you can see, it hasn’t always been like that…

[@wizrom3046]

@@imreolajossr6355 of course it is your right to draw the symbol any way you prefer. 🙂 But I did notice on other pages you drew the battery symbol as correct (ie; matching all the international standards) but on that one page was reversed. I'm an old timer too, and have done electronics since 1975. I thank you for sharing your notebook, it is a little piece of history, and I hope I have not caused negativity here by pointing out that one detail. Thanks for sharing! 👍

[@vagnersolano7173]

Parabéns muito legal ver seu caderno de eletrônica, seus desenhos são perfeitos, saudades da eletrônica PTH.

[@imreolajossr6355]

These are just circuit diagrams and ideas, no PTH. In most cases, I worked on circuits by assembling components on the surface of copper spots. Yes, it's almost like surface-mount technology I invented because I hated drilling holes for the components. My co-workers were not happy with that. They said, 'The components will fall off over time.' But that never happened.

[@vagnersolano7173]

@@imreolajossr6355 obrigado pelas informações, foram muito úteis.

[@m.b.9814]

Nice notes, thanks for sharing Imre ! I started ten years later than you, with similar projects (LW and SW receivers, LW transmitters, VHF receiver, oscillators .. all using tubes and Ge transistors). Schematics were nearly the same, only newer series of Ge transistors (MP43, TG50, TG5.. instead of OC series ) were used. But my notes are not such accurate as yours ;) 73, Marek SP2MKT

[@DieGo-nl9il]

Excelent job,thanks a lot my friend! Greetings from Buenos Aires

[@francoisdastardly4405]

Very nice. Thanks from Argentina ❤❤

[@manuelvillanueva3753]

Reminds me of my college day! Wow!😊

[@Григорий-б5ж]

Широка страна моя родная❤услышал знакомый позывной.

[@ianuragaggarwal]

Interesting 😊❤

[@sadunnakipoglu9471]

شكرآ جزيلا على هذا الفيديو المفيد . تحياتي لك من تركيا. اتمنى ان تعمل جميع الفديوات باللغة الانكليزية.

[@imreolajossr6355]

See my other video where I inserted Englihs notes on the blank pages!

[@frankleimsieder2037]

Great, really. In niches a Feeling of a careless childhood

[@AdityaRanjanFans2]

❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

[@imreolajossr6355]

Thank you very much!

[@tr_2sc1970]

The schematics are marvelous remind me when I started the electronic hobby reading a book from the fifties Audels Radiomans Guide. It would be great if you made a video of the circuits and constructions.

[@imreolajossr6355]

Hey, back then there were no video recorders or phones, only film cameras for making movies. Nowadays, those parts are inaccessible, lost to history. You might occasionally come across some old transistors, but not the ones depicted in the diagrams. Enjoy what you see and hear in this video. At least the sound matches the era of my drawings. I'd love to see a similar notebook from someone on KZbin in this slideshow format. Hurry up, the paper material in your notebook is aging, turning yellow, just like we do as we get older..

[@tr_2sc1970]

@@imreolajossr6355 Excuse me I thought you still have some circuits with the same parts!

[@imreolajossr6355]

@@tr_2sc1970I'm sorry, but I don't have any of those transistors or any other parts for those circuits. These days, I prefer to work on larger transistor radios. They keep me busy day by day. I am retired.

[@tr_2sc1970]

@@imreolajossr6355 👍

[@olivierconet7995]

It reminds me so many things, thanks !

[@DXingSlovenija]

I wish more people (countries) would still be interested in broadcasting (radio is magical, but less and less people see that) The hardest thing about being the listener only is that some day we will have nothing to listen to PS: I tried building the first one from the schematic and the onlything I was able to listen to on it was my noisy plasma television :( (I mean it does work, but I would like to listen to music not noise) I did get outside at night but its realy hard to find a lonly place where u can put 30m of wire above ground Will try again, I just hope that there will be something strong and close to listen to Because right now the closest thing (still standing) is 15kW station about 150km away, which is just to weak to drive the radio I do have Kossouth from Solt which is about 700km away, but I guess 2MW station is still to far away and to weak

[@imreolajossr6355]

There is always something to listen to on a good wideband receiver. I am using Yaesu VR-500 and ICOM IC-R20 wideband receivers. During the day, I can tune in to the air band, ambulance (911 emergency) calls, police communications from 30 miles away, HAM operators on higher bands (28 MHz), and the CB band. The FM band, AM broadcast band, and shortwave broadcasts from 9 MHz to 18 MHz are also good to listen to, even during the daytime-at least in my location.

[@DXingSlovenija]

@@imreolajossr6355 well, thats true We still have FM band (for now, but even that will be taken away in favour of DAB) Sadly in Europe emergency services are using tetra and are encrypted As for listening to HAMs, meh, I never listened to anything interesting there yet I like broadcast radio because of all the music and culture (and to get this u use an universal interface, u dont need to know hungarian to find the website and their webstream, you only go to 540khz and done) There is something magical about analog radio, when the station that is 1000km away gets to u and its signal reflects that since its not strong Not even sure how to show this magic to younger generations, cuz if we dont, then they will destroy it PS: u still have SW bands, I thought FCC took that away to sell to stock brokers to use to transfer stok data there

[@leogusso7379]

Excelente muy Buenos recuerdos de lá onda corta, en nel mondo

[@6345788]

Thank you for sharing your impeccable work! Love those days gone by...de KD3EZ

[@mrdovie47]

I remember when pF was called mmF, I'm that old. Kilo Hertz was also Kilo Cycles.

[@glasslinger]

Very nice!

[@chuckermatinger3794]

These are beautiful diagrams! You did these?

[@imreolajossr6355]

I drew it by hand with a dip pen featuring a steel nib. I tested several circuits with it and even used it for a longer period.

[@chuckermatinger3794]

@@imreolajossr6355 Each diagram is a perfect example of technological art!

[@imreolajossr6355]

I have learned a lot by drawing these diagrams. Library books were not available for longer time but these notes were on my desk all the time.@@chuckermatinger3794

[@chuckermatinger3794]

Please leave this video up for all time. I need a few years to study it. LOL!@@imreolajossr6355

[@محمدراد-ص3ص]

very good

[@MrTauron77]

Nagyon szép kapcsolási rajzok, amiknek zömét nem is ismertem.

[@guddanzone6139]

Sir, Have circuit diagram of germanium transistor radio with AF 116 ?

[@imreolajossr6355]

I am sorry not at all.

[@TsMunch]

Fun to see occasional П403 in your schematics. I wonder if it was considered a decent transistor in Hungary at the time?

[@imreolajossr6355]

Yes, It was only or almost only the high frequency transistor that time.

[@brys555]

Looks just as my notes from around the years 2000-2003. I can even recognise some of the diagrams. They probably were copied from the same source by authors of the books we used, 40 years apart and in different countries. Except for the 0:46 - I don't remember anything mentioning BF245 in these books.

[@TheNoudio]

Love it! You had a lot of PNP's that time. Why no NPN's ?

[@imreolajossr6355]

The forst transistors were pint-contact transistors. It was easier to meke thereforetransistor was PNP that time. See more info on the web or here: spectrum.ieee.org/transistor-history#:~:text=The%20point-contact%20transistor%20was%20built%20around%20a%20thumb-size,charges.%20These%20positive%20charges%20are%20known%20as%20holes.

[@marekponka3021]

Czy uwierzycie , że pierwsze moje tranzystory miały Beta 500) to był kosmos.

[@zdenekkudela5403]

👍👍👍

[@zdenekkudela5403]

I can't do it, but it reminds me a lot of my school years...

[@MrSchopka]

Very good reception on medium wave. I didn't know that there was still a Polish channel on 1030kHz. When was the test carried out?

[@luizrezende9329]

Muito interessante!

[@sabo_v]

❤

[@Денис-ю4х5ш]

👍👍👍👍👍👍👍

[@erichkeyes5578]

Thanks for sharing. My note book is not very legible.

[@Dimon4033]

Good

[@lenovotab2847]

How old are the sound recordings ?

[@imreolajossr6355]

The sound recording is not my own; it is part of my collection. I believe it is contemporary to the notebook.

[@jamesbeemer7855]

Only problem is , this page will disappear when I go somewhere else . I hope I can call it up again later . But this device looses everything if I don’t at least touch it every 15 seconds .

[@jamesbeemer7855]

I wanted to get some recipes and this device closed out before I was finished copying .

[@ocayaro]

A bygone era😢

[@profugos370]

This better be good

[@LOVETODHIRKOT]

Nic

[@tavirasz]

GRATULALOK IMRE FANTASZTIKUS OSSZEALLITAS DE YO 5 PCH OP GYURI

[@imreolajossr6355]

Nagyon örültem amikor 30 év tárolás után visszakaptam a rokonaimtól.Igy másokkal is megoszthattam Már 6000 ember megnézhette

[@imreolajossr6355]

Nagyon boldog voltam amikor 30 evnyi tarolas utan visszakaptam rokonaimtol. Igy megoszthattam masokkal is. Mar 6000 ember megnezte.Ennyi a fizetesem es a sok megjegyzes amiket oda irnak nekem.Koszonom neked is kedves szavaidat!

[@tavirasz]

@@imreolajossr6355 Imre 6000 embernek felidezni es nosztalgiat ebreszteni ujbol megelni fiatalsagat ,oromot szerezni nagy dolog ,es ezek az igazi nagy dolgok ez olyan emberi ami manapsag kihaloban van vigyaz magadra es jo egezseget kivanok

[@allanegleston4931]

i would have been in kindergarten/ first grade elemantry school

[@ludwigsamereier8204]

You´re selling it on ebay? Please keep the original for yourself. You drew it and it belongs to you.

[@imreolajossr6355]

I am not selling the original but a laser copy of this notebook. At the same time, when I received this notebook back, I also got my mainframe computer notebooks - four larger (A4 format) bonded volumes and the everyday used program cards. The oldest computer notebook dates back to around 1969 and is about a transistorized French computer. That is a treasure for me too.

[@ВалераКапитан-у8ч]

Most of schematics have mistakes. That is not good.

[@imreolajossr6355]

Thanks for your note. These are only copies of official papers and books. I am aware of a few issues you mentioned, but some of them stem from the original parameters of the parts. At the time I made these copies, I didn’t have the knowledge to address the problems. I was just happy to obtain any material related to the subject.

[@ВалераКапитан-у8ч]

@@imreolajossr6355 I am glad for you to know. OK.

[@Tendragons10]

Sok olyan séma van,amelyben tervezési hibák vannak.Nem csoda,hogy hova jutott a rádióamatőrök fejlettsége

[@imreolajossr6355]

Tervezési hibák ma is előfordulnak. Példaul a telefonjaink folyamatosan frissítéseket kérnek. A technika története során mindig az volt a cél, hogy kiküszöböljük a hibákat és jobb minőségű termékeket hozzunk létre. Néhány kapcsolási rajz a valóságban más módon viselkedik, mint amire az ember számítana. Valamelyik kapcsolási rajz nehezen érthető, mert az elvi rajzon nem látszik a gyakorlati megvalósítása, az alkatrészek elhelyezése.

[@Tendragons10]

@@imreolajossr6355 Nem ember ,ez nem így van.A természet törvényeit nem lehet megszegni. Vannak olyan elvek,amelyeket nem lehet megsérteni.

[@Tendragons10]

@@imreolajossr6355 A fizikának megvannak a maga törvényei. A Ham rádió a fizikán alapul, nem a varázslaton

[@imreolajossr6355]

Ezeken mar regen tul vagyunk. Azt hisszuk hogy nem lehet ezt azt megserteni es megis . Ezen alapulnak a talamanyok amelyek megtalaljak a modjat a termeszet alaptorvenyeit megszegve vagyis- az addig ismert torvenyeit megszegve megis lehetseges valami ujat alkotni. Lasd a kristaly radiom amely kulso drot antenna nelkul mukodik. Vitatkoztam sokat amerikai mernokokkel, akik azt mondtak, ez hazugsag. Ime. itt van a videon mutatom a digitalis merovel, milyen feszultseget general egy ilyen kristaly diodas radio es hallhatod is amikor erositore tettem.@@Tendragons10

[@wovada]

Как все устарело.

[@imreolajossr6355]

По мере того как мы, люди, стареем (стареем, уходим на пенсию). As we age (grow old, retire).