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Elektronik i Umeå Hackerspace (elektronik) group

  1. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Thursday, 01-Nov-2018 06:58:46 EDT Tomas SA2TMS Tomas SA2TMS
    in reply to
    • Elektronik i Umeå Hackerspace
    • Tomas SA2TMS
    !elektronik
    In conversation Thursday, 01-Nov-2018 06:58:46 EDT from social.umeahackerspace.se permalink
  2. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Friday, 05-Oct-2018 05:30:44 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Toying around with a circuit to add tube distortion to line audio using 12AU7 aka ECC82 tubes. It hadn't occured to me before watching glasslinger's latest video where he restores a 30's mantle radio that one needs to add some kind of current limit to the filament supply. This because the filaments start out at a lower resistance, and without a limit there might be thermal shock and damage over time.. !elektronik
    In conversation Friday, 05-Oct-2018 05:30:44 EDT from social.umeahackerspace.se permalink
  3. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Thursday, 27-Sep-2018 10:56:15 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    New toy #redpitaya !elektronik https://social.umeahackerspace.se/attachment/443338
    In conversation Thursday, 27-Sep-2018 10:56:15 EDT from social.umeahackerspace.se permalink
  4. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Friday, 14-Sep-2018 09:08:56 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Thyratrons good http://www.righto.com/2018/09/glowing-mercury-thyratrons-inside-1940s.html !elektronik
    In conversation Friday, 14-Sep-2018 09:08:56 EDT from social.umeahackerspace.se permalink

    Attachments

    1. Invalid filename.
      Glowing mercury thyratrons: inside a 1940s Teletype switching power supply
      We recently started restoring a Teletype Model 19, a Navy communication system introduced in the 1940s. 14 This Teletype was powered by a b...
  5. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Saturday, 08-Sep-2018 09:13:24 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    David gets a visit from the ghost of old tantalums. #8bitguy !elektronik https://social.umeahackerspace.se/attachment/429681
    In conversation Saturday, 08-Sep-2018 09:13:24 EDT from social.umeahackerspace.se permalink
  6. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Sunday, 24-Jun-2018 14:52:50 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    A bit of a change of pace: documented the absolute ratsnest that is the back of my car's electrics, to get the trailer connector working properly. Seems it's just a grounding issue. The old wire goes nowhere, and my bodge job to attempt to fix it wasn't good enough. Next up is crimping together the floating ground wire to the thick yellow one going to one of the ground screws. !elektronik https://social.umeahackerspace.se/attachment/371577
    In conversation Sunday, 24-Jun-2018 14:52:50 EDT from social.umeahackerspace.se permalink
  7. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Thursday, 24-May-2018 12:08:41 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Herp, had a bug relating to SPI in my #AVR code. Turns out you can't read bytes before they have actually arrived 😁 !elektronik
    In conversation Thursday, 24-May-2018 12:08:41 EDT from social.umeahackerspace.se permalink
  8. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Tuesday, 22-May-2018 08:06:46 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Jlcpcb is doing free shipping at the moment. $2 for ten boards! !elektronik
    In conversation Tuesday, 22-May-2018 08:06:46 EDT from social.umeahackerspace.se permalink
  9. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Friday, 04-May-2018 08:57:42 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Preparing gerbers, BOM and pick-and-place file plus extra information, for the fab house. About time to send revision 1 in for comments !elektronik
    In conversation Friday, 04-May-2018 08:57:42 EDT from social.umeahackerspace.se permalink
  10. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Friday, 27-Apr-2018 08:55:00 EDT Tomas SA2TMS Tomas SA2TMS
    in reply to
    • Elektronik i Umeå Hackerspace
    • Tomas SA2TMS
    !elektronik
    In conversation Friday, 27-Apr-2018 08:55:00 EDT from social.umeahackerspace.se permalink
  11. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Monday, 12-Mar-2018 10:35:25 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    • Trammell Hudson
    !elektronik
    In conversation Monday, 12-Mar-2018 10:35:25 EDT from social.umeahackerspace.se permalink
  12. MMN-o ✅⃠ (mmn@social.umeahackerspace.se)'s status on Saturday, 10-Mar-2018 13:45:37 EST MMN-o ✅⃠ MMN-o ✅⃠
    • Elektronik i Umeå Hackerspace
    Just look at these cute, stubby caps! !elektronik https://social.umeahackerspace.se/attachment/299288
    In conversation Saturday, 10-Mar-2018 13:45:37 EST from social.umeahackerspace.se permalink
  13. MMN-o ✅⃠ (mmn@social.umeahackerspace.se)'s status on Sunday, 04-Mar-2018 15:41:29 EST MMN-o ✅⃠ MMN-o ✅⃠
    in reply to
    • Elektronik i Umeå Hackerspace
    • MMN-o ✅⃠
    It's not pretty! But the female headers are there to be connected and are in order. I've definitely got some improvements for next time, making it easier to solder. First thing to do is get those protoboards with pre-soldered lines.......... https://social.umeahackerspace.se/attachment/296598 https://social.umeahackerspace.se/attachment/296600
    !elektronik 
    In conversation Sunday, 04-Mar-2018 15:41:29 EST from social.umeahackerspace.se permalink
  14. MMN-o ✅⃠ (mmn@social.umeahackerspace.se)'s status on Sunday, 25-Feb-2018 13:45:24 EST MMN-o ✅⃠ MMN-o ✅⃠
    in reply to
    • Elektronik i Umeå Hackerspace
    • MMN-o ✅⃠
    ^- #Siglent 3303C connectors are stupid and annoying !elektronik
    In conversation Sunday, 25-Feb-2018 13:45:24 EST from social.umeahackerspace.se permalink
  15. MMN-o ✅⃠ (mmn@social.umeahackerspace.se)'s status on Wednesday, 14-Feb-2018 19:00:47 EST MMN-o ✅⃠ MMN-o ✅⃠
    • Elektronik i Umeå Hackerspace
    These should go well with my electron microscope. "Electron tweezers". !elektronik https://social.umeahackerspace.se/attachment/287755
    In conversation Wednesday, 14-Feb-2018 19:00:47 EST from social.umeahackerspace.se permalink
  16. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Wednesday, 14-Feb-2018 05:49:37 EST Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    • Elly, nasty enby :heart_pan:
    Digital or analog?
    Adding does not add extra harmonics, assuming a perfectly linear adder. If the phasing is right then some harmonics may even go away. You probably need some kind of anti-aliasing filter either way (assuming analog -> digital). Do you have a schematic?
    Paging !elektronik
    In conversation Wednesday, 14-Feb-2018 05:49:37 EST from social.umeahackerspace.se permalink
  17. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Wednesday, 07-Feb-2018 06:25:46 EST Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    • Jessica
    Can't go wrong with the Hakko. Even notable ranter Dave Jones of EEVblog is a fan !elektronik
    In conversation Wednesday, 07-Feb-2018 06:25:46 EST from social.umeahackerspace.se permalink
  18. MMN-o ✅⃠ (mmn@social.umeahackerspace.se)'s status on Wednesday, 13-Dec-2017 18:21:04 EST MMN-o ✅⃠ MMN-o ✅⃠
    • Elektronik i Umeå Hackerspace
    • Tomas SA2TMS
    • pettter ✅
    • Gus
    @gus What's wrong with the pot? (or, having read your previous posts, how is it the wrong pot - what should it be instead?) !elektronik #musicians @pettter @tomas
    In conversation Wednesday, 13-Dec-2017 18:21:04 EST from social.umeahackerspace.se permalink
  19. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Tuesday, 24-Oct-2017 11:05:42 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    • Föreningen Umeå RadioAmatörer
    • Ekaitz Zárraga 👹
    There used to be an !amateur group @ sdf.org's instance, but it's gone away since they switched to Mastodon. We have a group for our local ham club !fura but no general radio group (yet!). !elektronik may also be of interest
    In conversation Tuesday, 24-Oct-2017 11:05:42 EDT from social.umeahackerspace.se permalink
  20. Tomas SA2TMS (tomas@social.umeahackerspace.se)'s status on Saturday, 30-Sep-2017 10:03:58 EDT Tomas SA2TMS Tomas SA2TMS
    • Elektronik i Umeå Hackerspace
    Having a !coffee after soldering another batch of six boards. Currently experimenting with removing flux using ultrasound on the board that got experienced a pad lift during rework !elektronik
    In conversation Saturday, 30-Sep-2017 10:03:58 EDT from social.umeahackerspace.se permalink
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