Technics RS-676US

. Measured Center Frequency Range: 3 kHZz+4%
a
b. Input Level Range: 30mV~3V
c. Input Impedance: About 50 kQ Unbalanced
d. Measurement: 0.01~3% (5 ranges)
e.
Indicator
Error:
Maximum
error
in
indicated
value
+5%
in
each
range.
f.
Frequency
Response:
Conforming
to
Weighting
Curve
Characteristic
(WRMS),
JIS
C5551.
Flat Characterstic (RMS)
0.5~200 Hz, Within —3 dB (4 Hz basis)
. Meter Indication System: Effective Value Indication, conforming to JIS C5551
g
h. Meter Response Characteristic: About 5~7 sec.
i. Oscillation Frequency: 3 Frequencies (3 kHz, 3 kHz+3%)
j. Temperatur Range: O~40°C ;
lH. MEASUREMENT CONDITIONS
1. Standard Measurement Conditions
* Ambient Temperature: 10°~30°C (50°~86°F)
* Ambient Humidity : 30~90% RH
* Power Voltage: Rated Voltage=120 V+5%
2. Position of Tape Recorder
When measuring, place the unit under test in a horizontal position.
3. Oscillator Output Voltage Adjustment
* Connect the equipments as shown in the following and adjust the oscillator output contro! knob for 1 V
(f=1 kHz) through the attenuator while keeping the attenuator at O aB.
* When supplying a signal to the tape recorder amplifier, adjust the input level using the attenuator.
Connection of Test Equipments.
Oscilloscope
é
ae
oo
.
a
‘
f
?
‘
Attenuator
=
#
Vacuum
Tube
Audio
Frequency
j
f
Voltmeter
~
Oscillator
.
é
f=1kHz Output Voltage=1 V (0 dB)