VTC P.35 - Building the Output Register

[@thomashowe855]

Thanks to the patrons supporting this incredible content, and thank you David for bringing us along on your journey!

[@klocugh12]

You go, Patrons! Thanks so much, Patrons!

[@arjanvuik2004]

Thank you patrons! So that we can enjoy the journey of a 1 bit vacuum tube computer being designed and build!

[@Codeaholic1]

Thank you all for supporting such an amazing creator. You all rock!

[@SFYN..]

this is one of those tech channels that i don't understand a single thing about but still subscribed

[@thirdwheel1985au]

Thank you patrons for helping make this available for the freelo*STATIC* lowli*STATIC* thie*STATIC* other grateful viewers who enjoy this channel's content. Sincerely, a grateful viewer

[@wimwiddershins]

Thanks patrons for helping David preserve and document computer history.

[@haraldtscherne7487]

A big "thank you!" to all you patrons supporting David to do his excellent work on this channel!

[@neilthomas6042]

A very cute bunny, looking cosy between the blankets. Interesting video, trying to keep up with the tech talk. It would be nice to see the computer fully working. Thanks to all the patrons.

[@thechillhacker]

Thank you to everyone financially supporting David's madness. We all thank and love you, him, and the whole Usagi project.

[@rickhole]

Here it is, Monday evening, and I just squeezed in your video (I am ashamed of myself!) Thanks, patrons for supporting this channel.

[@alexandergraz7522]

Thanks for all patrons and subscribers.

[@derekbambenek7803]

Thank you to the Patrons helping this man out, and thank you Usagi for sharing these things with us! It is true what they say: "KZbin is your friend" for DIY things like this, so thank you all!

[@joelirl6764]

So Say We All!

[@sackbaggins]

Thank you patrons for supporting this content!

[@philfrakes172]

When I first saw those graphs at the beginning, I thought you might be showing us how your electric bill is changing over time! :)

[@davidegessa]

Thank you too David, it's a pleasure to help you bringing us these amazing projects!

[@PlaceHolder41]

Thank you patrons! This has rapidly become my favorite retro/ancient computing KZbinr. Thank you all for helping support a time capsule for nearly lost technology!

[@goofyrulez7914]

One bit? Pure luxury. When I was a kid, we weren't allowed any bits. Merry Christmas

[@newbiefromabroad1092]

God knows that there's an abundance of content out there that offers nothing more than easy, sometimes downright silly, amusement. Occasionally, you come across individuals who manage to infuse passion into their content, offering genuine teachings that transform the internet into a valuable learning tool and a delight to engage with. If you happen to be one of those contributing to this by assisting David: THANK YOU!!! We are truly indebted to you.

[@sara-d]

Thanks David, and thanks to all of your patrons! 🎉

[@zehalmeida]

Everyone that support this channel should be proud, especially if you're a patron. Not only is Usagi a historian and preservationist, he is a documentarian as well. Really, him and all his work should be elevated and known through out the internet. Kudos to you all and thank you for all the fish.

[@sn1000k]

Thanks patrons! This disabled artist can't afford to patronize (patreonize?) but this is probably my favorite channel and it brings me much comfort and joy every week. Seriously, thanks for supporting where I cannot. And thanks David for all of your hard work.

[@JohnMDiLiberto]

From a patron to other channels to the Usagi Electric patrons: thank you!

[@a_Fax_Machine]

Shout out to your Patrons! I wish I was financially in a place where I could contribute, but I am currently not. But I greatly enjoy your videos and appreciate all who help make that happen

[@NickelLight]

To those whom it may concern, Thank you for making these wild, educational, entertaining, captivating, nature filled, cat appearing, enjoyable videos possible!

[@TheGunnarRoxen]

Happy to have been a patron for over a year now and have been part of a lovely community. Keep doing what you do, Usagi!

[@numlockkilla]

Thanks for all patrons and subscribers. We all must support this man.

[@spookisghostly4619]

Thanks everyone for helping entertain and teach me about these wonderful machines

[@Creamypie626]

when I first found this channel I didnt know anything about this old equipment and the technology behind them but one thing that caught my attention was your genuine love for your stuff. Not all content creators who appears to be having a lot of fun doing their stuff genuinely does have fun doing their stuff. But you my good sir has the same expression as the kid at the candy store. Specially when I saw your video about running that dead Finch and copying the data inside it.

[@brianpoi5117]

Thank you patrons! 2023 has been a strange year for me, so I can't join you right now, but thank you for your support!

[@jeromethiel4323]

Using an electronic component for something it was not designed to do, is the essence of electronic engineering. I cannot count the times i have seen something that at first glance, should not work. But it does, because the engineer who designed the circuit knew something about the components being used that i did not. This is why i view integrated circuits as black magic. There are tricks done on an IC that aren't immediately obvious as to how they work. But they DO work, and work reliably enough to be mass produced.

[@computeraidedworld1148]

This channel and your enthusiasm is more important to me than you'd think.

[@BobDarlington]

Same here.

[@RPrice_OG]

Thanks to all the patrons for this channel.

[@jeffsadowski]

Your patrons are so awesome on supporting a guy as cool as you.

[@jeffreysnodgrass5451]

Thank you so much, patrons, for supporting an amazing creator!

[@TheHylianBatman]

Many thanks to the Patrons for enabling this content! Very excited to see the paper tape get implemented!

[@mm-hl7gh]

shoutout to all patreons !! thank you guys!

[@tim_bbq1008]

Thank you Patrons! I do look forward to these videos every weekend.

[@pjcnet]

It will be amazing to see that actually process code in the future, what an achievement so far though, congrats.

[@WelcomeToMarkintosh]

WOO-HOO Patrons!!! I'll be joining you soon!

[@ukrichie]

I find this project so awesome, it's really exciting to see how you meet the unique challenges of building a valve computer from scratch in 2023! I would also like to give my thanks to all your patreons who make this whole adventure possible, you rock!

[@williamkelley7654]

THank you Patrons!

[@ernie3444]

thanks to all the patrons you guys rock!

[@exidy-yt]

You patrons rock for doing something my broke ass just cannot afford to do right now no matter how much I love Dave's work. Thank you all SO much for helping keep this going!

[@JohnSmith-xq1pz]

Even though I bearly understand any of this I can't stop watch these videos

[@MarianoLu]

Patrons ROCK!! 🎉🎉🎉🎉

[@projectartichoke]

Thanks to the patrons! I think the only thing limiting the speed of your machine might be the strike time (conductance time) of the fluorescent indicator tubes. Luckily hot cathode tubes strike much more quickly than cold cathode tubes. I would think the machine should easily be able to manage a 100Hz clock, perhaps a 1 KHz clock or more. Remember, vacuum fluorescent displays are often multiplexed and that wouldn't be possible if they didn't switch very quickly. It should be easy to measure the strike times of some sample indicators using an oscilloscope.

[@AndersNielsenAA]

Awesome 🎉 So happy to see all those supporters ❤

[@Terry-x2n8s]

This is the best kind of crowdfunding; you're doing valuable work for computing history and archeology, and you deserve to be paid for it. I love watching your videos, although I can't really afford to contribute, I thank those who do, and you, from the bottom of my heart.

[@wadowicegwadowiceg8093]

Thanks to everybody

[@frankowalker4662]

Thank you patrons for keeping this going.

[@antonnym214]

Thanks to the patrons and to david for one of my all time favorite channels

[@justinnamilee]

Kudos to all you glorious patrons, love this content, my best discovery of 2023.

[@lindoran]

I am always so happy when there's a new video! I have been blown away with what you have accomplished in such a short time -- especially with the mini computer - you've resurrected an architecture, created documentation and this community is the reason! You have a lot to be proud of!

[@TheMadrory]

Thank you patreons! This content is ultra valuable and the fact that you all make it possible is almost impossible to appreciate enough! You all rock!

[@tobiaswhittaker7462]

The Display tube impredence logic switch was perhaps the most chaotic neutral thing i've ever seen

[@jeffsusott5837]

So many interesting projects... thank you patrons, I hope to join you when my situation improves.

[@elv1swest770]

You paterons are awsome that brings this awsome content to everyone!

[@rosschamberlain1823]

Thanks to all involved in breathing life into this channel. Truly awesome!

[@kencarlile1212]

Woo! Thank you patrons!

[@loginregional]

Not a patron, just a viewer, commenter and up-voter. My cathode is glowing with knowledge.

[@glenvollmer]

this is the best series on youtube

[@robertomurta]

Thank you patreons!

[@magnusnordlund3787]

Thank YOU David! I cannot wrap my head around how you are able to produce so much great content with so diverse topics (diverse in a nerdy sense I guess). YOU are the true legend here!

[@danbluemel1073]

Thank you, patrons!

[@der.Schtefan]

Write-only registers, especially for I/O, are actually quite normal in microcontrollers, so nothing weird here :)

[@Unfinished80]

It's coming along great my friend! Looking forward to seeing how fast you can clock it. Thanks for another fun video

[@boredwithusernames]

Thank you for this wonderful channel and thank you for all of the work that you do both building and keeping all of that classic equipment alive, both for the communities that you support and for preserving them for future generations to learn from and to enjoy. A huge thank you to all of the Patreons that support the channel and for helping to keep it alive. Looking forward to many more years of entertainment and wishing you all best wishes from the UK.

[@Toymortal]

I wish I could afford to support you - so to all those who do and help make this possible - thank you so so much. This really is the most amazing channel and amazing journey. KZbin at its finest and free to watch so anyone can learn. Brilliant!

[@jayqcobhc]

Thank you so much you awesome patreons 😈🤟

[@stitchfinger7678]

Thanks to the patrons, and of course to you for making this great content. I'm not in a place to commit regular money to much of anything, but you'd definitely be a creator I'd support if I could.

[@jb2590]

Big up yourself and the patrons !

[@jeromethiel4323]

You can always "save" a narrow trace by either just adding solder to the top of the trace. Or even better, just solder a bare copper wire along the top of the trace. That way you not only get solder helping to carry the current, you get the wire as well. I have actually seen this done on high current applications where the traces had to be small due to space constraints in the x/y plane. So the manufacturer just made the trace 3D, by making it "taller" with a wire soldered on top of the trace.

[@woldemunster9244]

I wonder what will be the "bottleneck" when benchmarking out the max speed, current delivery or the tubes? This would be REALLY interesting to see through thermal and/or hispeed camera, would stuff visibly flicker or something?

[@jeromethiel4323]

@@woldemunster9244 I can tell you that tube amplifiers will change brightness when driven hard. I suspect that the limiting speed will be either capacitance of the tubes, or the electron transit times in the tubes. Transistors are fast, because the distances are short, and the capacitance is low. Tubes, not so much. If he gets a couple hundred hertz out of that vacuum tube computer, i will be surprised.

[@IbilisSLZ]

Usagi: I really hope for 45 Hz, but who knows maybe we'll achieve 100 Hz... I'm not sure how low cathode voltage affects slew rate of tubes and those PCBs affect parasitic capacitances, but tubes were much faster than early transistors (effective frequencies in hundreds of MHz vs hundreds of kHz) so who knows what whole circuit would be able to reliably achive. Random thought: Considering tubes in your circuit being able to output 18V high and 3V low - if you could set reference voltage somwhere between (i.e. +10 V) or use a tube powered with negative voltage and switch between +18 and -18V - you could bit-bang RS232 (1 is -3...-25V, 0 is 3...+25V) and than connect UEVTC to Centurion or to dumb terminal (and as it was introduced in 1960 - it wouldn't be that of a stretch if early VTC was retrofitted with RS232 interface).

[@derekchristenson5711]

Very cool! I've enjoyed watching the progress of this project. 🙂

[@rohrbotroboter1937]

great content, great patrons - thank you Mr. Usagi

[@DavidMohring]

Thank you Patrons of Usagi Electric. I prefer to Subscribe to KZbin premium. So watching this channel & so many other worthy creators, so I hope the pittance they all receive though KZbin helps a bit.

[@zxalexis]

I'm not a patron but a subscriber) It's one of the most intresting channels I stay on. Thanks, David and hello from Russia😊

[@velho6298]

Thanks patrons! Please pay more so we get even better content

[@jaut-76]

I didn’t expect to enjoy the tube computer that much as I really came across your channel via the centurion but here I am having loads of fun.

[@IrisGalaxis]

Shoutouts to the Patro Guys!!!

[@KennethSorling]

Your PCB's are gorgeous works of art!

[@malcolmgibson6288]

A really great channel, thanks to everyone who makes this possible.

[@yukonxl5723]

Wooo! Patronss!

[@clyde3013]

Dude you're making content well worth the money! Thank you too!

[@gandalf87264]

Damn, I was thinking it would run at a couple of megs at least. By the way, I think you are a genius. I know digital logic and micro processors and all those things, but vacuum tubes have me dumbfounded.

[@thebiggerbyte5991]

Yours is one of a few channels that I would love to support on Patreon, and only financial constraints have prevented it so far, but I’m hoping to be able to do it soon. So thanks, patrons, and thanks to you, David, for such an excellent channel.

[@SOMERANDOMDUDESomething]

Yeah patreon thank you

[@_joac]

Thanks patrons, you rock🎉🎉🎉

[@UpLateGeek]

I'm pretty sure those Harwin pin sockets are the same ones I found a couple of months ago when I was looking for sockets for my 7 segment VFD tubes. I originally planned to use genuine Soviet-era bakelite sockets, but the idea of soldering 66 wires really didn't appeal to me over just clicking order on a PCB and soldering the pin sockets onto the boards. And as a bonus it also allows me to make the design more modular and versatile.

[@blenderbuch]

Thanks patrons!

[@austinshea]

Thank you patrons

[@ronfish8375]

thank you patrons 😊

[@_hackwell]

I encountered some Write Once Read Never memories in my past life. WORN technology memories to be exact 🤣

[@TheDoctorhuw]

Keep it up Guys this is wonderful stuff, learning is a wonderful thing!

[@robot797]

finaly a update on the tube computrer!!!

[@kaunomedis7926]

Thanks for mentioning "write only memory" gag datasheet.

[@diecrafter1986]

thanks to the patreons!

[@allobject]

It needs a village to rise a child! --- nothing new under the sun: good youtube clips have many parents that invest in and teach thru it. Thank you patrons AND thank you usagi!

[@martinprincic2288]

Bueno me párese fabuloso lo que hace ..no entiendo nada de computación pero soy un fanático de las válvulas y aun que me cuesta entender tantos términos me facina lo que se a logrado con válvulas.....es un genio felicitaciones