Catalinbread · Overdrive

Formula 51

9V · ≥2 mA supply · maker

Catalinbread Formula 51 power requirements

9V DC · centre negative · needs a supply of at least 2mA
the voltage it ships for · from the maker
“The Formula 51 requires a center-negative DC power supply between 9 and 18 volts that supplies at least 2mA of current. Any more current than that is fine.” source
Checked 2026-10-13
18V DC · centre negative · needs a supply of at least 2mA
from the maker
“The Formula 51 requires a center-negative DC power supply between 9 and 18 volts that supplies at least 2mA of current. Any more current than that is fine.” source
Checked 2026-10-13

59.94 × 109.98 × 49.78 mm (2.36 × 4.33 × 1.96 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.