voltage question..

[FUZZZZzzzz]

so i have these lofi loopers.. they run on three LR1130 batteries..


the specs are: LR 1130 / 1.5V / 72mAh..

i want to run two of those circuits in a soundbox im building.. which runs on a 9 v dc adapter..
so i need something to divide the 9volt in two and also some polarity protection.. but how it work with the Ampere? the adapter can go up to 1800 mA..
i always thought that ampere could be more but never less then requiered but if someone could enlighten me on the subject or guide me to a digital answer

much appreciated..

[FUZZZZzzzz]

i think this should do the trick

[maarten]

The 72 mAh stands for the battery capacity; when drawing a current of 72mA the batteries will be drained in about an hour. Probably the looper will draw a lot less current; if  e.g. your batteries on average last 10 hours, the looper-circuit apparently only draws a current of 7,2 mA.

The circuit you propose looks fine to me, you could up the 1 u some (it is there to overcome changes in current draw - I don't know what your loopers actually do...) and parallel this capacitor with one of 100nF (to prevent oscillations, just in case).

Maarten