Fairfield Circuitry · Compressor

The Accountant

9V · 12 mA · maker

Fairfield Circuitry The Accountant power requirements

9V DC · centre negative · draws 12mA
the voltage it ships for · from the maker
“power supply 9-9.6 VDC - current draw 12 mA … The Accountant was designed to operate using your typical centre negative, regulated 9-9.6 VDC power supply.” source
Checked 2026-10-13
9.6V DC · centre negative · draws 12mA
from the maker
“power supply 9-9.6 VDC - current draw 12 mA … The Accountant was designed to operate using your typical centre negative, regulated 9-9.6 VDC power supply.” source
Checked 2026-10-13

38.1 × 93.98 × 48.26 mm (1.50 × 3.70 × 1.90 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.