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  1. Wishmasterx

    Output resistors in parallel opamps amplifier

    Hi I have portable headphone amplifier based on this scheme: http://www.eleccircuit.com/wp-content/uploads/2011/05/increase-output-current-of-the-op-amp-ic-in-85mA-size.jpg only my is: Master - OPA128SM 4x Slave - OPA627AU biased 5mA to Class A over resistors How much are minimal safe and...
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