Trafomatic Audio TARA 30A, User Manual

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ENVIRONMENT
1) Water and Moisture. Do not use this product near water - i.e. near a bathtub, ash bowl,
kitchen sink or laundry tub; in a wet basement; or near a swimming pool or the like. Damp
basements should be avoided.
2) Heat. The product should be situated away from heat sources such as radiators, heat registers,
stoves or other appliances that produce heat. Also avoid putting the unit in the direct rays of the sun.
3) For indoor use only.
PLACEMENT
1)
Accessibility.
It is normal for an audio device to run warm if used for prolonged periods.
Always place your device away from children and pets to prevent burns.
2)
Ventilation.
Proper ventilation is critical for safe and reliable operation of all vacuum tube
based equipment. This product should not be placed in a built-in installation or rack unless proper
ventilation is provided or the manufacturer’s instructions have been followed. Never place any thing on
top of your preamplifier that could obstruct airflow and cause vacuum tubes to over heat and damage
the unit. Do not place your preamplifier in a closed bookcase; overheating could occur.
Ensure that there is at least 6” (150 mm) of open space above the preamplifier.
3)
Surface.
Place the unit on a flat level surface. Care should be taken to prevent objects from
falling and liquids from spilling into the unit. Do not subject the unit to excessive smoke, dust,
vibration or shock.
MAINTENANCE
1)
Cleaning.
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners
or aerosol cleaners. Use a dry cloth for cleaning. Do not use any type of abrasive pad, scouring
powder or solvent such as alcohol or benzene.
2)
Tube replacement.
Vacuum tubes have life in the 10.000 hours range. We recommend replacing the
tubes after 36 months, depending on your listening habits. That will ensure that the preamplifier always
performs at its best and tube failure will not overstress other parts of the unit.
3)
Biasing the amplifier.
Biasing of the
TARA 30A preamplifier
is not required. However, for best
performance it is recommended to adjust dynamic balance, as described in the Controls section
further below.
SERVICE
1) Replacement Parts. When replacement parts are required, be sure that the service technician
uses replacement parts specified by the manufacturer or parts with the same characteristics
as the original part. Unauthorized substitutions may result in fire, electric shock or other
hazards.
2) Tube replacement. Should it become necessary to replace the vacuum tubes, remove the
AC power plug from the wall and allow thirty minutes (30 min) for the high voltage capacitors
to discharge. Follow instructions outlined below in the section “Handling vacuum tubes”.
3) Modifications. Modifications to the amplifier are strongly discouraged. The unit was designed
by experienced engineers and tested for safe and reliable operation. Any modification may
poses safety risk and result in reduced lifetime of the product. Any removal of the cover will
void warranty.
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TARA 3 0A - Line Level Preamplifier - User Manual