External Battery with switch

[StrongBanana]

Hi,

I've though that could be a nice idea to add a simple circuit that I draw quickly for the pedals that need (or sound) better when they are fueled with a battery and don't have enough space in it.
It can be a solution for people who have fancies fuzz with rare transistors and don't want to supply them with a power supply.
It can also fit in a 1590A enclosure or it can also be adapted to fit in a bigger case with several batteries ?

[IvIark]

Thanks for sharing SB