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a230

  1. David_NC

    New Goodies - Harman-Kardon A230 and A300 + Hickok 533A

    Like many, I'm always looking for a new project to add to my others! Over the weekend, I found a local guy liquidating his 'collection' due to downsizing his living space. I picked up a couple integrated amps - HK A230 and A300 (A30K, actually). Both are very good to excellent cosmetically...
    • David_NC
    • Thread
    • 533a a230 a300 a30k harman-kardon hickok hk
    • Replies: 16
    • Forum: Tube Audio
  2. ralphw

    Tips for restoring a H-K "Ballad" A-230 tube amp?

    Greetings! My dad owned a Harman-Kardon Amp from the 60's to the 90's - it quit working sometime in the 80's. There is no tuner, but I have few of line-level out tuners to plug in. I strongly think the power supply isn't working (and hasn't been powered on in nearly 20 years) Should I even...
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