Using two 9 v batteries as a dual power supply – Erica Synths EDU DIY Dual VCA Eurorack Module Kit User Manual
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USING TWO 9 V BATTERIES AS A
DUAL POWER SUPPLY
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 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 positive terminal of the left battery becomes your
+9 V, while the negative terminal of the right one’s now your -9 V – and the other two
combine to become your new ground.
Please make sure you disconnect the batteries from your breadboard when you
make changes to the circuit!
Otherwise you run the risk of damaging components.
If you’re struggling with setting this up, you can watch me do it here:
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