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#vacuumtube — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #vacuumtube, aggregated by home.social.

  1. Mr. Carlson acquired an instrument tuner. It doesn't just use vacuum tubes, it uses vacuum tubes, a custom pulsing neon tube, _multiple_ very custom transformers, a giant hidden reference tuning fork, a motor, and a 12-speed transmission gearbox, and it came to him fully working and _recently in service_.

    Basically if you're into holy shit old electrics, you will probably enjoy this:

    youtube.com/watch?v=Stxd_YMHF3U

    (for reference, you can get phone apps for this, or you can buy little dedicated standalone devices the size of... idk, a thick credit card, or also the kind that's smaller and has a clip pickup that attaches to your instrument head. BUT NOT IN 1930)

    #electronics #vintage #VacuumTube #VacuumTubes #MrCarlson #tuner #InstrumentTuner

  2. Vacuum tube radio progress: got decent reception of several medium wave AM stations: BBC radio 5, Radio Caroline and a Dutch one. I learned to stay away from switching power supplies, all I tried were so noisy I couldn't hear anything else. With a linear supply the sound is pleasant, but could still be a bit louder. #radio #diyelectronics #vacuumtube

  3. A Tube Tester Laid Bare - There’s still a mystique around vacuum tubes long after they were rendered obsolet... - hackaday.com/2024/02/08/a-tube #tubetester #vacuumtube #hardware #tube

  4. When I finally own my own castle, I will have a room with walls full of old vacuum valves, just like glasslinger.

    #Dreams #vacuumTube #vacuumTubes

    youtu.be/TYRkkA0vDNI

  5. CRT replacements are always a bit nerve-racking.
    A grid to cathode short in the original CRT was making the intensity run up. I was lucky enough to find a replacement with the same P7 phosphor. It fluoresces in a pale blue / white and phosphoresces in yellow(ish), both of which show well through the orange color filter that’s often paired with this phosphor. P7 has a long persistence, and was used wherever slow sweep speeds were needed.
    #vintageTech #retroTech #vacuumTube #oscilloscope

  6. A Single Board Computer, With Vacuum Tubes - We have occasionally featured vacuum tube computers here at Hackaday and we’ve bro... - hackaday.com/2023/12/05/a-sing #computerhacks #classichacks #vacuumtube #mc14500 #1-bit

  7. Spy Radio Setup Gets a Tiny Power Supply for Field Operations - [Helge Fyske (LA6NCA)] may not be an actual spy — then again, he may be; if he’s g... - hackaday.com/2023/06/29/spy-ra #amateurradio #switchedmode #radiohacks #vacuumtube #spyradio #mosfet #80-m #smps #ham

  8. It’s time for quarterly #transmitter maintenance at one of my sites today. I always enjoy this one because I get to light up this #VacuumTube powered beauty and put it on the air! Ever since I had that Flexstar exciter repaired, it can even do HD Radio on a tube!

    #BroadcastEngineering #Broadcasting #Radio #HDRadio #AmateurRadio #HamRadio

  9. @cedric Hi 👋. Thanks for the reminder. I’m currently looking at some #DAC/AMPs from #iFi Audio. 🎧 Was wondering if I should get this for my setup.

    Also very intrigued by #VacuumTube ⚡️ Amps. #XDUOO makes some interesting hybrids. 🤓

    #HiFi #Music #audiophile

  10. Reshoring Vacuum Tube Manufacturing, One Tube at a Time - For most of us, vacuum tubes haven’t appeared in any of our schematics or BOMs in ... - hackaday.com/2023/04/04/reshor #audiophile #thermionic #vacuumtube #amplifier #guitar #triode #valves #parts #12ax7 #300b

  11. Two-Tube Spy Transmitter Fits in the Palm of Your Hand - It’s been a long time since vacuum tubes were cutting-edge technology, but that do... - hackaday.com/2023/03/29/two-tu #classichacks #radiohacks #oscillator #vacuumtube #spyradio #amateur #morse #radio #ham #qrp #qso #cw

  12. Some #vacuumtube #computing was requested by @jakub_neruda - here's some shots inside a #Bendix #computer at our host museum.

    We welcome requests for pictures of the #museum, and tours are free if anyone wants to drop by! :blobsmile:​

    #tech #technology #computers