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
Size
38.1 × 93.98 × 48.26 mm (1.50 × 3.70 × 1.90 in)
Width × depth × height, from the manufacturer.
Power supplies that can run it
Each has an output that can power it, checked against its published figure. Plan the whole board to see what runs everything.
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