How to repair power supply Dynaco PAS tube type stereo preamp Transformer issue SDS Cap Board

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  • Опубліковано 23 сер 2024

КОМЕНТАРІ • 33

  • @hestheMaster
    @hestheMaster 3 роки тому +2

    Best electronics troubleshooter and repairman on YT! Hey another visit from Snauzeramous!😎👍🏻👍🏻

  • @Valerifon1
    @Valerifon1 6 місяців тому

    What you showed us regarding the power cord - Wow! Great job of sleuthing there Mr.Terry! Mental note made! Isolate the suspect part for testing! 😎👍 Cheers - Luther

  • @alexdeleon7135
    @alexdeleon7135 3 роки тому +9

    Well spotted. Your integrity as an electronics repairman is a joy to behold.

  • @davidsigglekow1349
    @davidsigglekow1349 3 роки тому +1

    Always look forward to your videos! Great work sir! You are quite the Tech.

  • @Robert-xn3jb
    @Robert-xn3jb 3 роки тому +1

    The easiest way to repair these is to throw them away! I had to say it…. Great videos!

  • @bigmac4948
    @bigmac4948 3 роки тому +1

    Nice Terry. Look'n forward to part two.

  • @preiter20
    @preiter20 3 роки тому +6

    Some ghouls come from Portu-ghoul....Can't beat Snauzeramous. More great troubleshooting tips from D-Lab!

  • @midmodaudio6576
    @midmodaudio6576 2 роки тому

    Thank you for detailing your trouble-shooting method, very informative. My only complaint is the owner's mod of a blue LED indicator lamp, it should be AMBER : )

  • @TheTrueVoiceOfReason
    @TheTrueVoiceOfReason 3 роки тому +1

    I think I have Snozzeramus' great grandpappy, a big old brute that MY grandpop used to used for certain plumbing jobs. Used to melt that thick old plumbing solder faster than a 40 watt flat tip on 0.020 Kester. One of these days I'll drag it out and make sure the old cloth covered wire is intact.

  • @srtamplification
    @srtamplification 3 роки тому +4

    Good catch on the PT.

  • @djfrank59
    @djfrank59 3 роки тому +2

    Hi Terry, I've actually experienced a defective power cord twice. Similar situation. Look closely at the conductors. strip one of the ends and take notice to see if you see any green, liquid oxidation. There were power cords made in the 60's that had this issue and would corrode the copper and cause resistance. I had a few Fender guitar amplifiers also that had this power cord issue. Great video.

  • @bruceferrero8178
    @bruceferrero8178 3 роки тому +2

    Good catch Terry.

  • @dirtydon8661
    @dirtydon8661 3 роки тому +2

    Your work is a delight to watch!

  • @chienminchang40
    @chienminchang40 5 місяців тому

    Good job , I have one this preamp, only use for phone stage now.

  • @darthbubba866
    @darthbubba866 3 роки тому +1

    Gotta love those old PAS preamps!

  •  3 роки тому +2

    I loved this video Terry! Simple explanation and corrections performed!

    • @d-labelectronics
      @d-labelectronics  3 роки тому +2

      Thank you my friend, I try to keep a simple approach

    •  3 роки тому

      @@d-labelectronics and you succeed! Best repair bench tech channel on UA-cam!

  • @kornucopia9460
    @kornucopia9460 Рік тому

    smart thinking about the transformer situation

  • @gaylen8467
    @gaylen8467 3 роки тому +1

    Yea, pre amp fixing, way to go Terry

  • @fatboysonny
    @fatboysonny 2 роки тому

    Brilliant as always, thank you

  • @electrolytics
    @electrolytics 3 роки тому +1

    Great video thank you.

  • @jdmccorful
    @jdmccorful 3 роки тому +1

    Good start. Thanks for the look.

  • @edwardhannigan6324
    @edwardhannigan6324 3 роки тому +1

    Great video Terry...Info and expert repairs..Ed..UK..😀

  • @kornami8678
    @kornami8678 3 роки тому +1

    Good shootin'!

  • @waynethompson8416
    @waynethompson8416 3 роки тому +10

    Terry,
    Just a thought about the new power cord.
    Are the wires that make up the power cord rated for the total current that might be drawn for the amp AND everything else that might be plugged into the sockets in the back?
    I understand about the reason to not use a 3 wire cord on the replacement cord, but is there a reason that you chose to not use a polarized plug?

    • @jasonlamoureux7578
      @jasonlamoureux7578 3 роки тому +3

      Indeed.. I was going to ask the same question. I would've thought a polarized 2 prong with the hot running to the new fuse location.

    • @kgsalvage6306
      @kgsalvage6306 3 роки тому +1

      I agree that a polarized cord would still be a good idea. Keeping the hot line going to the fuse and switch. Only a safety thing.

  • @jcool0122
    @jcool0122 3 роки тому +1

    !!! Another great video

  • @brucemillar3015
    @brucemillar3015 3 роки тому +3

    Why not use a polarized line cord as a replacement cord? It guarantees that you will be switching the hot side of the line every time.

  •  3 роки тому +1

    I own a Dyna PAS 2 preamp that had the same problem except I had an intermittent no power problem. I replaced the cord and plug and the problem went away.

  • @moodyga40
    @moodyga40 3 роки тому +1

    some of the pass needs a mains fuse

  • @cesaru3619
    @cesaru3619 3 роки тому +1

    always double-check