Suggestions on a voltage doubler

[whomeno]

I built a noisy cricket mk2 amp. Would like to take
The 9 volt to 18 volt inside the case. Which doubler
Would work best.
Thanks

[PRR]

Raising the voltage on a LM386 does not raise the power, much. It mostly over-heats the chip.

Small/simple doublers don't support the power you hope-for from a 18V power amp.

There are other choices which will work better. BTL doubles the speaker voltage for the same supply voltage.

[whomeno]

 BTL doubles the speaker voltage for the same supply voltage ?
can you explain more?
I am using the lm386n-4 which will handle the voltage.
Hoping to get a little more headroom on it

[PRR]

> lm386n-4 which will handle the voltage.

But not the current. It is a very teeny chip inside.

Others will know more about what chips can make some power from 9V; I'm not hip on the current crop.

[radio]

If  2 Watt is enough and you don't bother building a more advanced project,

here is a Marshall Guvnor with 2 LM386-3 in bridge configuration as power amp,

designed  by Michael Massberg in 2004:

members.aon.at/cgm/Little Rebel/little rebel.pdf