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Opamp technology and usage has changed too much in the past year, you would need to start over? /s

@Chuck D. Bones Can you summarize for me what the chargepump is actually offering/bringing to the Greengage (plumes) circuit (all non-inverting)? Most charge pump circuits/rationale I can find is related to bringing the voltage/gnd to 18v/0v for the opamp Vcc/Gnd, but in this circuit it is...

Don't buy all of the sludgehammer pcbs when they come back in stock 🥺, I have been waiting a month or two with components in hand ready for it! I want to replace my BDI21 :)

New OPA2134 from mouser came today Popped it in and the sound I was hearing is gone, General Tso is perfect now. I performed the same test with the unity gain setup and got 8.48mA so basically exactly matching the datasheet (vs the 0.96mA I got for whatever the Tayda chip is/was) Top is fake...

This thread was helpful to me. I just finished my General Tso build and have some strange behavior/noise that I was debugging. This lead me down to considering the OPA2134 I got from Tayda as a culprit. The photo shows a pretty poor looking BB logo (regular font?) and a missing pin 1 indent...