D.W. Fearn VT-3 User Manual
Page 11
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I n s t a l l a t i o n
The VT-3 is carefully packed for shipment and should survive all but the most
brutal handling. If there is any damage, keep the shipping material for use during
any claim for damage with the shipper.
Included in the box:
1) The VT-3 DI
2) Line cord
3) This instruction manual
Mounting
The VT-3 is designed to be rack-mounted. In most cases, cooling will not be a
problem, but avoid placing the unit where it is tightly confined. Do not block the
cooling holes on the top. The VT-3 runs cool, cooler, in fact, than many solid-state
devices.
Moderate electrical and magnetic fields in the vicinity of the VT-3 should not
cause any degradation in noise performance, due to the well-shielded construction,
but proximity to devices with motors or large power transformers (i.e. tape
machines or power amps) should be avoided.
Although the vacuum tubes in the VT-3 are selected for minimum microphonic
response, it is a good practice to avoid mounting locations that subject the unit to
very high sound or vibration levels.
REAR PANEL CONNECTIONS (See Figure 1, page 15)
AC (Mains) Power (1)
The VT-3 is designed to operate from 100, 120, or 220-240 volt, 50/60 Hz
power. A recessed slide switch (3) on the back panel allows instant change from
120VAC to 240VAC operation. For 100VAC operation, internal wiring changes