Wampler · Overdrive

Black '65

9V · 3 mA · maker

Wampler Black '65 power requirements

9V DC · centre negative · draws 3mA
the voltage it ships for · also runs on a 9V battery · from the maker
“Battery connection and 9V power jack … This pedal draws approximately 3mA at 9V and 9mA at 18V.” source
Checked 2026-10-13
18V DC · centre negative · draws 9mA
also runs on a 9V battery · from the maker
“This pedal draws approximately 3mA at 9V and 9mA at 18V.” source
Checked 2026-10-13

63.5 × 114.3 × 38.1 mm (2.50 × 4.50 × 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.