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harmon karadon

  1. Ivanthetoler

    harman kardon ST7 wow/flutter issues with 33rpm only

    Hi all! I have a ST7 TT that needs some help. I replaced the three caps and cleaned all pots but only in 33rpm mode the system has a nasty speedup and slowdown with a wow/flutter of 4 to 15! In 45rpm mode the TT is rock solid. I've swapped the two fine control pots thinking it was the issue but...
  2. C

    Parts Fell Out of My PM650 -What are they??

    Hey everyone. I picked up a Harman Kardon PM650 that needs some love. I bought it as a fixer upper and that’s what I got. Two issues right off the bat. 1) left channel static, very prominent at low volume, turning the volume up results in protection mode shut down. Right channel is clean...
  3. Pear52

    Harmon Kardon 560 dial tuning fix

    I know several have made a fix to the tuner pulley/circuit board issue that this tuner has. The lower end of the scale gets blocked because the pulley/cord hook catches on the neighboring circuit board as it turns. I saw someone made a bracket and JB welded it to the heat sink to allow this to...
    • Pear52
    • Thread
    • 560 harmon karadon tuning issue
    • Replies: 0
    • Forum: Solid State
  4. U

    Harmon Kardon a300 pre amp

    The 4 preamp sockets. How do they run? 2 on left are left channel? ETC. If so are they in line? ,does signal pass thru one first? I ask cause ive had it for years,would like to play with tube mixing. Ive heard if u use a quiet tube in first in line the second really just amplifies that signal...
  5. D

    Harman Kardon Thirty

    There are barely any mentions of this online. I'm looking at a pair of HK Thirty speakers for $150. They're made in 1992 and I can't find any other listings online for them which leads me to believe they may not be worth the price. Does anyone have an opinion on what these would be worth...
    • DoctorBotany
    • Thread
    • bookshelf speakers harmon karadon polk
    • Replies: 1
    • Forum: Speakers
  6. lakegville

    Gear advise?

    I have a friend who priced some of his vintage gear to me. I will post and see if anyone may be able to identify any pieces as exceptional and or a good deal. I think condition is good on all pieces but they have been sitting up unplayed for many years. Thanks for any help and input.....he has a...
  7. parksung

    Optical (male) & 3.5mm (male) to play iPhone on amp

    I have an Harmon Kardon 990 and have Airport plugged into the amp via an optical to 3.5mm cable. My internet keeps cutting out so I want to simply plug in my iPhone directly with the 3.5mm end but the end of that end is too short and does not properly fit into my iPhone. Questions: Is this...
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