Mr. Black · Overdrive

JDS-50

9V · 8 mA · maker

Mr. Black JDS-50 power requirements

9V DC · centre negative · draws 8mA
the voltage it ships for · also runs on a 9V battery · from the maker
“Current draw: ~8mA … 9VDC power (2.1mm negative center pin adapter) or internal 9V battery” source
Checked 2026-10-13
18V DC · centre negative · current not published
from the maker
“New for 2019+ Models: Optional 18V operation (9V standard, 18V capable via external power-supply) for increased headroom, clarity and dynamic response!” source
Checked 2026-10-13

67.31 × 113.03 × 46.99 mm (2.65 × 4.45 × 1.85 in)

Width × depth × height, from the enclosure standard.

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