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Old AVA FET preamp in a PAT 5 chassis

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Teknofossil58

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Old AVA FET preamp in a PAT 5 chassis
« on: 31 Jan 2020, 04:36 am »
Hello. Are there any recommended opamp upgrades for the old FET 3 Dynaco Pat 5 mod? Original chips are TL071 types.

Thanks! Tom
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avahifi

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    • http://www.avahifi.com
Re: Old AVA FET preamp in a PAT 5 chassis
« Reply #1 on: 2 Feb 2020, 12:12 pm »
OPA 627 chips might work.  I would need to see a sharp close up photo of the chip area of the pc board to advise further.

Email me at frank@avahifi.com for faster responses.  I don’t check here at AC every day.

Frank
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