All good stuff, Klienstein. Through the years, you have always proven to be most helpful and reliable, to me. Thank you!
Yes, I would need to verify that all of the components can handle the higher volts and amps created by my component substitutions.
- The -5V supply would be from a LM7905, which I would think would be quite stable.
- What would be the solution for the risk of a bad pot contact?
- Yes, the op amp voltage needs to be verified.
- Yes, the Tantalum cap voltage needs to be verified. If it can not be sourced at that high of a voltage, a typical work-around seems to be to use a common ceramic cap. Or, an e-cap at x10 rating, IIRC.
- What is the solution to harden the circuit against low ESR capacitive load oscillation? Terminate with a 50 ohm resistor on the output? That seems problematic.
- As said, if the transistor is only good up to 3 amps, that is fine. Final testing will sort that out. Would using a MOSFET instead be of any improvement? If so, what is needed to incorporate it?