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st 70

  1. Tyler Prock

    Recapped better than spec pioneer sx-1010 or…

    May have the opportunity to trade my up to spec pioneer sx-1010 for a dynaco pas3, st 70, and an fm-3 plus a little cash on my end I could really care less on the tuner. So that’s not a plus to me in anyway. But I have been very curious of tube separates lately. I’m running Cornwalls with the sx...
    • Tyler Prock
    • Thread
    • advice dynaco help pioneer solid state st 70 sx-1010 tube amp
    • Replies: 3
    • Forum: Pioneer Audio
  2. G

    Dynaco ST-70/PAS2 History and Fun Facts

    Hey. I recently acquired a Dynaco ST-70 and PAS2 and was interested in finding out more about them (i.e Interesting facts about the units or company, stories, marketing campaigns, original pricing) anything anyone wants to share would be awesome. I look forward to hearing everyone’s responses...
    • GR3GRS
    • Thread
    • dyanco dynakit pas 2 st 70
    • Replies: 2
    • Forum: Tube Audio
  3. G

    PAS-2 Weak Left Channel Help

    Hello. I just got my first tube system set up. The left channel seems to be playing at a lower volume during phono playback. I have to turn the gain down pretty significantly on the right channel of my ST-70 to compensate. In turn I have to increase the volume on my PAS-2 to about the 1o’clock...
    • GR3GRS
    • Thread
    • dynaco dynakit pas-2 st 70
    • Replies: 59
    • Forum: Tube Audio
  4. RibbonAddict

    Complications of using 2c22/7193's on ST-70 Driver Board?

    Hey all, it's finally time to replace the 7199's on my ST-70, so I've been taking a look at just upgrading the entire driver board entirely. The 12AU7 and 6SN7 boards seem to be the common swaps, but I've been curious as to whether it would be more effective to simply create a board with two...
  5. 131east23

    Dynaco ST 70 with Lo-Gain Board has hum...

    My Dynaco ST 70 with Lo-Gain board has a noticeable hum. I have Cornwalls so I'm sure they make it more noticeable, but the hum is related to a vibration in the amp. The left output transformer seems to be vibrating. Is it about to go or could there possibly be something else causing this: bad...
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