Erica Synths EDU DIY EG Eurorack Module Kit - Manual (Page 5)

POWERING YOUR BREADBOARD
Before we can start building, you’ll need to find a way of providing your breadboard with
power. Ideally, you’d use a dual power supply for this. Dual power supplies are great –
and if you want to get serious about synth design, you should invest in one at some point.
But what if you’re just starting out, and you’d like to use batteries instead? Thankfully,
that’s totally doable.
You just need to connect two 9 V batteries to your breadboard
like shown here . For this, you should use 9 V battery clips, which are cheap & widely
available in every electronics shop.
By connecting the batteries like this, the row on the left side labeled + becomes your
positive rail, the row on the right side labeled + becomes your negative rail, and both rows
labeled – become your ground rails. Please make sure you disconnect the batteries 2
from your breadboard when you make changes to the circuit! Otherwise you run the
risk of damaging components.
This is a bit awkward because breadboards weren’t really made with dual supply voltages in 2
mind.
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