Let's Get Technical > Schematics & Modifications (mods)

Replacement for op amp listed in mp-1 noise mod

(1/1)

kissfan113:
I was checking into parts for the noise mod for my mp-1s today and see that the TL072IN chip listed in the mod is obsolete and unavailable, what would be a suitable replacement for this ic?

MarshallJMP:
What revision of the noise mod did you look at?

kissfan113:
I think it’s version 1 ca.2003

MarshallJMP:
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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