ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʽʽʳˣ˥ˢ˗˨˖˧ʳ˦ˣ˘˖˜˙˜˖˔˧˜ˢˡʳʽʽʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ
ʳ
ʳ ʳ ʳ ʳ ʳ ʳ ˠ˴˹˴˶˸
ˍˍʳ ʳ ˗˔˧ʳ ʳ ʳ ʳʳʳʳʳʳʳʳʳʳʳʳʳˠ˷˸˿ˍ
ʳ ʳ ˧ˣˀˈ˃˄˚ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ˗˸˶˼˼ˍ
ʳ ʳ ˔ˠ˂˙ˠʳ˦˧˘˥˘ˢʳ˥˔˗˜ˢʳʹʳ˖˗ʳ˂ˠˣˆʳˣ˟˔ˬ˘˥ʳ ʳ
ʳ ʳ ʳ ʳ ʳ ʳ ˖˸’ʳˡ˴˸ˍʳʳʳʳʳʳʳ
ʳ ˧˸ʳ˖˷˼˼ˍ
ʳ ʳ ʳ ˄ˁʳ˦˿ʳ ʳ ˩˿˴˺˸ˍʳ˅
ˆ˃ʳ˩ʳ˔˖ʳ ʳ ʳ
ˈ˃ʳ˛ʳ˄
˅˩ʳ˗˖ʳ ʳ ʳ ʳ ʳ ʳ ˅ˁʳ˥˸˹˸˸˶˸ʳˢˍ
ʳ ʳ ʳ ˈ˃ʳ˪ʳ ʳ ʳ ʳ ʳ ʳ ˆˁʳ˟˴˷ʳ˜˸˷˴˶˸ʳ
ˍʳ ʳ ˋʳˢ˻ʳ ʳ ʳ ʳ ʳ ʳ ʳ
6
No.
Description Brand Name Model No.
1
Digital Signal Generator KENWOOD SG-5150
2
Distortion Meter MEGURO MAK-6571C
3
Millivolt Meter LODESTAR MV-3201B
4
Low-Frequency Generator KENWOOD AG-203A
5
Oscilloscope GW GOS-653G
6
Wow-and-Flutter KIKUSUI 677D
BAND: TAPE PLAYBACK
NO
.
ITEMS Measurement Conditions UNIT NOMINAL LIMIT
S/N MIC I/P S.G. 1KHz X@ MIC SENS. +30dB VS NO SIGNAL AC Bias dB / 40
THD @ MIC I/P SENS % / 2
18 Record/Playback
ERASE
RATIO
WITH 1KHz BPF AC Bias dB / /
19 DC Operation Voltage Range DC Supply Voltage Change DC Voltage V 6.5 8
20 AC Operation Voltage Range AC 120V % +10
21 Record MIC Sensitivity 1 KHz Input Level In dB Recording /Play to Tape –5dB dB -50 +3
22 Record MIC ALC 1 KHz Input Level In dB Ref. Record MIC Sensitivity +30dB dB +3 < 5dB
125KHz dB +6
23 Record MIC FREQ
6K3
@ 1KHz MIC MAX. Sens. (-66dB I/P)
dB +
6
24 Record MIC ALC Recovering Time
1KHz MIC MAX. Sens./60 S’ VS +30dB/ 60 S’ VS MAX. Sens. /60 S’
MIC MAX. Sens. Set to dB Recover 90% of Output Time
Sec 15 10
Beat 0 KHz 75 +2
25 AC Bias Oscillation Freq.
Beat 1
VTVM +(x10 Probe) Measure the OSC Coil High-END Side
KHz 85 +
2
Pos 0 Vrms 36 +2
26 AC Bias Voltage
Pos 1 Vrms 38 +
2
27 MAX. Distortion MTT-112B MT-112B Volume = MAX. Measure Output Power % 20 30
FM FM Urf=1mV AF=1000Hz MOD.=75KHz 98MHz dB 0 +3
28
Level Differences to Din Tape=0 dB
(MTT-112B) VS Set to 0dB
AM AM Urf=100dB AF=1000Hz MOD.=80% 1000KHz dB 0 +
3
CD CD –0dB TCD-784 NO.2 dB +2 +3
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