4
terminais, at the "INPUT CAPA
CITOR" position. By this selection,
complete shut-off of DC ingredients
from the external source is possible.
The color of light will return to
white from red within 2 ~3 seconds
after selection.
The INPUT CAPACITOR IN/
OUT SELE(;:TOR is also useful for
protection of the amplifier itself
when for use with loading com
ponents of which impedance will
bêCOme nearly zero in the ex
tremely low frequency range; for
example, electrostatic (condenser)
speakers, speakers using dividing
networks that use transformers for
low frequency eut-off, etc.
8. ATTENUA TOR
Input sensitivity can be regu
lated to optimum level by this
control.
Two independent at
tenuators are provided for the right
and left channels and any unbalance
of levels between the both channels
can be adjusted. Viewed from the
rear side of the amplifier, the left
knob is for the right channel, and
the right knob, the left channel.
Continuous input level attenuation
from OdB down to
00
is possible.
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With the knob position completely
turned clockwise, which is the
MAX position, attenuation amount
is 0dB (no attenuation). With the
knob position completely turned
counter-clockwise, which is the
MIN position, attenuation amount
is infinite (00) and no sound play
back is possible. The attenuator is
the B type volume control and the
attenuation is -6dB (1 /2) at the
neutral (central) point of the knob
turning.
9. EARTH TERMINAL
Earth terminais of exterior com
ponent such as a preamplifier, a
peak indicator and so forth must be
connected to this terminal. To
make A/B listening test of am
plifiers, it will be effective to
eliminate shock noise at changeover
if this terminal is commonly used
for grounding of the tested ampli
fiers.
10. PEAK INDICATOR
CONNECTOR
The model 5E24 PEAK IN
DICATOR to give precise peak
output level reading of the am-
12. OVERCURRENT PROTECTION FUSE
11. SPEAKER TERMINALS
'
@ 0 @
•
•
L1
0. PEAK INDICATOR CONNECTOR
14. EXTRA AC OUTLET
6. INPUT TERMINAL$
13. AC MAINS POWER CORD
7. INPUT CAPACITOR
IN/OUT SELECTOR
