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Author Topic: Replacement for op amp listed in mp-1 noise mod  (Read 1120 times)

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kissfan113

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I was checking into parts for the noise mod for my mp-1s today and see that the TL072IN chip listed in the mod is obsolete and unavailable, what would be a suitable replacement for this ic?
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MarshallJMP

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What revision of the noise mod did you look at?
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kissfan113

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I think it’s version 1 ca.2003
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MarshallJMP

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Ok that's an old one, get a OPA2134AP for U4, don't change U9. Now the TL072 is not obsolete at all but the OPA is better.
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