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dynaco 120

  1. T

    Restomod Dynaco Stereo 120 — high DC offset

    I am rebuilding a Dynaco Stereo 120, with UpdateMyDynaco power supply and replacement caps, and the eBay TIP-mod amplifier boards, and I am seeing two issues that I could use some help with. 1) High DC offset (~200mV), and 2) the #4 and #14 eyelets are reading 71.3V instead of 36 and 37V...
    • TXGardener
    • Thread
    • amplifer dc offset dynaco dynaco 120 upgrade
    • Replies: 5
    • Forum: Solid State
  2. Refugee

    DYNACO ST-120 Restore to former glory

    Dynaco stereo120a Restoration I have had this unit for many years. The last time it was in service was about 15 years ago. As far as I can remember, it was working well. I did not test the unit before I began working because I was worried about causing damage by powering up before some...
    • Refugee
    • Thread
    • capacitor coupled dynaco dynaco 120 dynaco st-120 dynaco st120 parts list recap recap and restoration updatemydynaco
    • Replies: 35
    • Forum: Solid State
  3. Kevin K7ZS

    Dynaco 120A ... worth upgrading?

    Just received a Dynaco 120A 2 channel amplifier from a brother that is moving, forgot he had it and gave it to me rather than move it. looks unmolested, nice physical shape, powers up but haven't tested it yet. Just curious if this is worth updating, (and what preamp anybody suggests for it...
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