17V from 9V charge pump with jack power switching - pcb and layout here

[Morocotopo]

Hi, maybe this will be of use to someone, I made it for my 301 flanger (see my thread on getting that to work... ).
It´s from the charge pump at geofex. I used an ICL 7660S chip, no MAX 1044 here in Argentina.



Morocotopo

[Gringo]

How much did you pay for the icl7660? and where did you get it?

[Morocotopo]

Gringo, sos argentino?
I paid not much, don´t remember exactly, about $ 5 pesos, it´s not an expensive chip. Remember to get the ICL 7660 S, otherwise you´ll get noise in the audio. I think I bought it in S y C componentes, in Parana street in downtown Buenos Aires, just around the corner from the San Martin Theatre.
By the way, the transistor is a 2N3906, and the diodes are 1N4148 or 1N400x, caps 25V or higher
Morocotopo

[Gringo]

Un poquito argentino, si Tandil city, capital del salamin de raza 

Gracias por la data! A ver si consigo el integrado sin tener que viajar a baires.

[Paul Perry (Frostwave)]

Thanks Gringo, looks better than my vero hacks...
As an aside on using doublers at ultrasonic frequencies to avoid audible noise, it's worth noting that if there still is ultrasonic ripple on the power rail, this might interact with another oscillator in the circuit & produce audible harmonics.
A classic case... a BBD clock

[Gringo]

Thanks Gringo, looks better than my vero hacks...

This is Morocotopo's work, not mine