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Additional voltage does not extend run time and is of no benefit for most wireless
receivers.
B. INTERNAL POWER, ALKALINE BATTERIES
Ten "AA" alkaline batteries can also power the AlphaMix. These batteries are
housed in a convenient battery tray designed to be inserted in the standard NP-1
battery slot. When using alkaline batteries, you can expect 4 to 7 hours of
operation under normal circumstances.
It is not recommended that the
alkaline battery tray be used when trying to power wireless receivers. They
simply cannot deliver enough power to operate the mixer and wireless
simultaneously.
Note: Never store your AlphaMix for extended periods of time with alkaline
batteries installed in the mixer. There is a possibility that the batteries may
leak causing corrosion damage of the mixer.
Battery leakage and the
resulting corrosion damage are not covered under the AlphaMix warranty.
C. EXTERNAL POWER
The PSC AlphaMix can also be externally powered from any source of DC power
from 10 to 18 Vdc. The mixer consumes approximately 210 mA of current over
this voltage range. This current consumption is nearly constant and does not
vary dramatically over operating voltages like other mixers. The external power
connector is located on the right side of the mixer below the NP-1 battery slot.
Pin outs of this Hirose 4 pin connector are as follows:
Pin 4 (+) Positive
Pin 1 (-) Negative
This external DC input is protected from reverse polarity. If you in-advetantly
connect external power of the incorrect polarity, the mixer will not be damaged, it
simply will not power up.
CONSTRUCTION
A.
CHASSIS
The new AlphaMix chassis has been designed for maximum torsional rigidity.
This increased rigidity provides a stable base for the mixers modern electronics.
The complete chassis is formed from 0.040" and 0.050" aircraft aluminum. All
punching is done on a computer controlled "Strippet" rotary turret punch press for
extreme accuracy. In addition, through careful design, we have managed to
keep the overall weight of the AlphaMix to 4.25 lbs. (1.9Kg) total.
The mixers sheet metal is hand-formed using various press brake setups before
the all stainless steel threaded inserts are pressed permanently into place. The
housing parts are then Chem Film TM plated for superior corrosion resistance
before being electro-statically coated with an epoxy powder coating.
This
powder coat paint is then baked on in an oven. Powder coating is chosen for its
durability and environmental friendly characteristics.
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