Here's what Surfy Industries say: This is the typical polarity for 9V guitar pedals. Most pedals use a switch built-in the dc-jack to automatically connect the battery when no plug is inserted. This only works with center-negative polarity.
Here’s what Surfy Industries say:
This is the typical polarity for 9V guitar pedals. Most pedals use a switch built-in the dc-jack to automatically connect the battery when no plug is inserted. This only works with center-negative polarity.
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