Powered OPA amplifier

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Hello Stee,
🙂 It's not that nobody knows, it's just a flawed design as it is.
You need to add a bias scheme as Lineup suggested, which needs to be stable with changes in supply/temperatue etc. It's a lot more than just adding a couple of extra parts.
🙂
 
thermal dissipation

a solution can be a modern water cooler for CPU :bigeyes:
 

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