#683 – Troubleshooting is the skill

Comments

1. SeanB says

   November 21, 2024 at 6:30 am

   Dave saying about phone lines, and I have a phone junction box outside, tools required to open it are none, because the phone techs will never actually use the M10 bolt on the underside to do more than close it by hand. Years ago with old payphones the military base they came to empty the pay phone box, and according to the meter at the exchange it should have been full, but inside the box there was only a single coin.those were the old grey phone boxes, where the coin acceptor generated pulses on the phone line, 5c per pulse, so you would have multiple pulses, depending on the coin inserted, with the line being terminated during metering pulses by a 2k4 resistor.

   Why yes there was a lot of purchases of small crocodile clips, and 2k2 resistors, from the local electronics store, though it would often work simply by using wet toilet paper across the 2 bare sections of phone line conveniently by the phone itself. Note these phones were right outside the security offices, with 24 hour visibility to the guard commander as well.

   I may or may not have made my own butt set, using an old carbon mic phone, as there is a lot less to contain in there if you do not need to have a ringer, and knew where the base incoming lines were. Lots of 212 area code New York lines that you could call for free, as those lines could dial internationally. Way too many special intel people in the camp that us normal trainees interacted with, and they in some cases had no visible rank, but outranked the base command for some reason.

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2. Mate says

   November 22, 2024 at 2:12 am

   Hi Chris!

   You have referred now in multiple shows the second interview with Jay Carson, where he talked about his embedded linux SBC journey during COVID. I’d like to ask, what episode is the first interview with Jay? I presume in this show he talks about his 1$ MCU project, but I cannot find this show in the episode index.

   Thanks and regards,
   Mate

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   • Chris Gammell says

     November 22, 2024 at 12:23 pm

     Wow, I think it doesn’t actually exist and I’m just mapping the embedded.fm episodes onto TAH! Jeeeeez, my brain isn’t firing on all cylinders! These are Jay’s appearances on the embedded:

     https://embedded.fm/episodes/226
     https://embedded.fm/episodes/303

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     • Mate says

       November 26, 2024 at 2:18 am

       Thanks for the clarification!
       I’m sorry that I made your wave function collapse (both of the episode exist until you specifically look for them :D).

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