Anyone change an optocoupler on an old Mac tuner?

Discussion in 'Tuners' started by jlovda, Mar 16, 2017.

  1. jlovda

    jlovda Things I loved from the 60's and 70's Subscriber

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    Has anyone changed the optocoupler (LDR) on the multiplex board of an MR74 or MX113. Any problems to look out for?

    Thnks
     

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