#190

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  • เผยแพร่เมื่อ 2 ม.ค. 2025

ความคิดเห็น •

  • @Greg-et2dp
    @Greg-et2dp 8 หลายเดือนก่อน

    DL7MAJ Stefan you are good at restoring vintage shortwave receivers and alignment of vintage shortwave receivers my friend

  • @Homer19521
    @Homer19521 ปีที่แล้ว

    My Dungeon/Torture Chamber (aka Test/Repair bench) is illuminated like the Full Sun. Not only are you brighter than me, you also see so much better. Cameras typically make things look brighter than the eye sees. It seems in your case, your eyes are better than the camera you use. Thanx for doing these Stefan.

    • @dl7majstefan753
      @dl7majstefan753  ปีที่แล้ว

      Maybe the camera reduces the brightness in Auto-mode. I don´t know.

  • @claudio6493
    @claudio6493 ปีที่แล้ว +1

    Great hf receiver... Never had one...... Top quality 👌👌👌👌👌👌

    • @dl7majstefan753
      @dl7majstefan753  ปีที่แล้ว

      Yes, top notch in those days and even today its quality is top - compared to the scrap which is sold today.

  • @davidv1289
    @davidv1289 ปีที่แล้ว

    Another intermittent problem, my favorite! Just kidding of course - I hate them. I just completed repairing an HP 3314A Function Generator that had had a serious power supply fault that turned several tantalum capacitors into little lumps of carbon. After repairing the supply and replacing all of the caps the unit had an intermittent fault - it would sometimes appear to be completely dead when powered up with all supply rails good. Turned out to be a Schmitt trigger in the power supply monitor that was no longer Schmitting consistently and was holding the processor in reset. Good luck with your fault. Regards, David

  • @Greg-et2dp
    @Greg-et2dp 8 หลายเดือนก่อน

    DL7MAJ Stefan i have a vintage zenith Trans oceanic transistor shortwave receiver I want to restore it let me no ware I can get Russian germanium transistors ?

  • @Greg-et2dp
    @Greg-et2dp 8 หลายเดือนก่อน

    DL7MAJ Stefan the owner vintage 190 R&S EK-070 shortwave desktop receiver with ssb from the 80s is awesome my friend

  • @Greg-et2dp
    @Greg-et2dp 8 หลายเดือนก่อน

    DL7MAJ Stefan your TH-cam videos are awesome my friend

  • @Alessioalessio-qv1ff
    @Alessioalessio-qv1ff 6 หลายเดือนก่อน

    Is that a switching power supply?

    • @dl7majstefan753
      @dl7majstefan753  6 หลายเดือนก่อน

      It is explained in detail in part 2

  • @zdzisiek1979
    @zdzisiek1979 ปีที่แล้ว +1

    Duża maszyna , ładny odbiornik ale R&S to klasa w klasie :)

  • @tlrptg
    @tlrptg ปีที่แล้ว +1

    when i saw those ROE and FRAKO yellow and orange capacitors in the power supply, i said "yup, they all must go" . Those are by far the worst type of electrolytic capacitors i've encountered in German made electronics. Not just audio equipment, but TVs too. They were good 40 years ago, but they are really bad now. Really bad.

  • @Greg-et2dp
    @Greg-et2dp 8 หลายเดือนก่อน

    DL7MAJ Stefan my hobbies are painting pictures and listening to shortwave and ssb iam thinking about getting my Grms license