Egghead

[PhiloB]

Can the egghead be run at 18v?

[midwayfair]

Can the egghead be run at 18v?

As long as your caps are rated for it. Keep in mind that you won't get more headroom than the diodes can provide. They clamp the signal to 1.2V on one side and .6V on the other, which is well below the power rails, and the second op amp is 2x gain (that's R6/R5), which is still well below the power rails.

If you want to take advantage of higher voltage, I'd suggest adding a switch to go to LED clippers or something.

[PhiloB]

Thanks Jon, very helpful.  Think I'm going to keep it simple for now.  May revisit this at a future date if I'm not satisfied;)