Wampler · Overdrive

Tumnus Overdrive

9V · 21 mA · maker

Wampler Tumnus Overdrive power requirements

9V DC · centre negative · draws 21mA
from the maker
“This pedal was designed around the usage of a 9v power source. To avoid damage to the pedal, do not exceed 9.6VDC … This pedal draws approximately 21mA at 9vdc.” source
Checked 2026-10-13

38.1 × 88.9 × 38.1 mm (1.50 × 3.50 × 1.50 in)

Width × depth × height, from the manufacturer.

Each has an output that can power it, checked against its published figure. Plan the whole board to see what runs everything.