Hi
>> APOLOGIES - Im not doing it any more <<
!!! Are You familiar with basic electronics and soldering and understand this device needs to be switched off when NOT IN USE?? !!!
No need to be installed on a bass.. You can remove battery and test it outside the bass... if its still ok the led will not lit up(!)
Worrying about dead battery in the middle of a tune on a gig? - You do not have to any more with this circuit!
It works