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trimpots

  1. R

    Sansui 990DB bias / trimpot issue

    Greetings AK friends, Some background for context: I am fully restoring a 990DB. During the process, and testing along the way, replacing the bias/offset trimpots on the driver board caused the DBT to 'pulsate'. I came across a Youtube of this guy who faced the same issue and pointed towards...
  2. D

    Quick question about Nad 3020 & Bourns trimmers

    Hi, Nearing the end of my first recap, a NAD 3020 Series 20 and it is practically only the changing out of the DC offset Trimpots left. Only have the Bourns 3296 series 20K trimmer at hand and the original ones are much larger. Was wondering which route is best to go? 1. Is it better to...
  3. C

    MR78 Trimpots/Symptoms

    I had tried a search at the beginning of my troubleshooting and found nothing, so I am posting this in hopes of helping the next tech. A customer's unit came to me with the following symptoms: Very low and distorted audio output Center of Channel Tuning (COT) meter pegged to the - side Signal...
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