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CUI
Notes about J2 and J3
:
If your front panel is non-conductive (i.e., plastic), you may use non-isolated jacks such as
Kycon
This is used to help conduct heat from the U2 voltage regulator and U4/U5 opamps to the
board, improving the power dissipation. Only a very small amount is needed. Be sure to use
an electrically non-conductive compound to prevent the opamp pins from being shorted by it.
•
Wakefield 120-SA
(Mouser, Digi-Key)
•
other similar
Chassis / case
The Mini³ is designed specifically for the Hammond 1455C80x series extruded aluminum
cases.
•
(Mouser, Digi-Key, Newark, Farnell)
•
•
(Mouser, Digi-Key, Newark, Farnell)
•
(Mouser, Digi-Key, Newark, Farnell)
A precision-drilled, engraved aluminumis available from AMB audio
shop. Use these for ease of build, upgraded appearance, and to assure a perfect fit. The
Mini³s shown in the
section are equipped with these panels.
Volume knob
The Alps volume control used in the Mini³ has a 6mm (0.236") "D" shaft, so the volume knob
should be made for this and have a single set-screw. Knobs made for a 0.25" shaft will be
slightly eccentric. The diameter of the knob should be no larger than about 0.5" (13mm) due
to the small size of the front panel and proximity to the nearby panel screw and input jack.
machined and anodized solid aluminum "soft-touch" knobs are
recommended. These are high in quality and attractive. The usable variations are shown
below, and are available from Digi-Key.
•
Kilo ML-50-1-6MM gloss clear
(Digi-key 226-2003-ND)
•
Kilo ML-50-2-6MM gloss black
(Digi-key 226-1003-ND)
•
Kilo ML-50-3-6MM matte clear
(Digi-key 226-3003-ND)
•
Kilo ML-50-4-6MM matte black
(Digi-key 226-4003-ND)
You may find other knob styles from different vendors usable as well.
