🔴 HP 6633A System DC Power Supply Repair - No.1130

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  • Опубліковано 17 тра 2023
  • HP6633A System DC Power Supply Repair
    I repair a HP 6633A power supply, it is basically the same as the HP 6632A, and HP 6634A.
    I really appreciate the donations and support I get from my Patreon Supporters and UA-cam Members, donations really do help me to make content for the channel and buy broken test gear, this hobby gets expensive !: defs.link/?u=fcb3a1
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    ====================
    My Electronics Tools (video and purchase links)
    ====================
    Boonton
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    4220.
    8210: defs.link/?u=e1eddc
    Datron
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    4700: defs.link/?u=e976205
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    8842A:
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    HP/Agilent/Keysight
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    Siglent
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    SDM3065X: defs.link/?u=1ed0fe defs.link/?u=12d498
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    SDS2102 (hacked to 340MHz): defs.link/?u=1ed0fe defs.link/?u=12d498
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    SPL-1008.
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    Other Equipment
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    UNI-T UTi260B Thermal Imager: defs.link/?u=f3283d7 (use discount code: BG45411)
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    Pro'skit SS-331 Desoldering Station: • 🔴 ProsKit SS-331 Desol...
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    EEVBlog BM235: defs.link/?u=12d498
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    Heathkit IT-12 Signal Tracer.
    Racal Dana 1992: defs.link/?u=8eeeba
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    Eakins Microscope: defs.link/?u=b0278b defs.link/?u=262327
    Mustool G600: defs.link/?u=b8bc26 defs.link/?u=33f0aa
    Uni-T UT210E: defs.link/?u=391ce3 defs.link/?u=ea4edc
    DER DE-5000: defs.link/?u=0d9160 defs.link/?u=12d498
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    ESR Meter: defs.link/?u=0d9160
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  • Наука та технологія

КОМЕНТАРІ • 13

  • @QsTechService1
    @QsTechService1 Рік тому +1

    Sure get all the easy repairs Switch and fuses 😂 Good job getting it going

  • @HeyBirt
    @HeyBirt Рік тому +3

    BTW, got a new can of Deoxit D5 last night and it did not have that stupid always dripping nozzle they have had for years. Let's hope this was not a fluke and the stupid nozzles as a thing of the past.

  • @t1d100
    @t1d100 Рік тому +2

    Kudos.

  • @gbowne1
    @gbowne1 Рік тому +2

    Sprague iirc got et up by Vishay

  • @andymouse
    @andymouse Рік тому

    Bit of a result right there I would say !...cheers.

  • @Trucam2020
    @Trucam2020 Рік тому +1

    Excellent video. Thanks. Do you use the JBC soldering station or a clone one?

    • @TheDefpom
      @TheDefpom  Рік тому

      It’s a clone, I did a couple of videos about it, the Jabe UD-1200

  • @TheEmbeddedHobbyist
    @TheEmbeddedHobbyist Рік тому +1

    Don't think i'd have designed something that ran at 70°C at normal operation. What must the junction temperature be at?

    • @andymouse
      @andymouse Рік тому +1

      Yeah 70 is to hot in my book, but it's HP so maybe they have 'Reasons'......squeak !

    • @IanScottJohnston
      @IanScottJohnston Рік тому +3

      With the case (lid) off the airflow won't be optimal across those 70degC heatsinks & power resistors......so probably running a tad higher than it would normally possibly. As a result, good operation of that fan is CRUCIAL I guess.

    • @TheEmbeddedHobbyist
      @TheEmbeddedHobbyist Рік тому

      @@IanScottJohnston i just thought that if the designer knew that the transistor would get that hot he would have put a heatsink on it. the case to air thermal resistance would be quite high so not sure the air flow from the fan blowing air out of the box would cool it that much.
      in my mind if you can't keep a finger on it during normal operation then your over driving it. except for heaters that is 🙂

    • @TheEmbeddedHobbyist
      @TheEmbeddedHobbyist Рік тому +2

      @@andymouse old age and overworked, that's my excuse for getting hot. ;-)

  • @JonnyFix
    @JonnyFix Рік тому +2

    Nobody wants a smokin reefer.....