D.W. Fearn VT-I/F - Manual (Page 12)

VT-I/F Vacuum Tube Instrument Interface
D.W. FEARN
14
REAR PANEL CONNECTIONS (See Figure 1)
AC (Mains) Power (2)
The VT-I/F is designed to operate from 100, 120, or 220 volt, 50/60 Hz power.
The unit will be shipped wired for the voltage specified in the order, but may be
changed in the field if necessary. The ground pin of the power cord is internally
connected to the chassis. This configuration is standard in professional equipment
and is required by most electrical codes. If ground loop hum is detected, a careful
check of the studio grounding scheme is needed. The VT-I/F is less susceptible to
grounding problems than many studio devices.
The Fuse is a 3AG-type 1 amp for 100/120 VAC operation, and 0.5 amp for 220
volts.
The AC input connector (2) is used with the mating line cord (supplied). For 120
VAC operation, this cord is a Belden 17250 or equivalent.
Figure 1. VT-I/F Rear Panel Connections and Controls
1
2
D.W. FEARN VT-I/F Vacuum Tube Instrument Interface
ON
OFF
POWER
0.5A 100/120V
0.25A 220V
D.W. FEARN P.O. BOX 57 POCOPSON, PA 19366 U.S.A. 610-793-2526