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YAMAHA
offers you thanks and congratu-
lations on your choice of the CT-610 AM/FM
Stereo Tuner.
Product of research directed
at making the best possible audio performance
available to the widest range of enthusiasts,
the CT-510 ts currently setting new standards
for its class.
1. Audio Quality-First Design
Building on YAMAHA's unique audio and ele-
ctronic engineering know-how, as developed for
the top-of-the-line CT-7000, the CT-610 features
low distortion, high sensitivity, and excellent S/N
ratio.
2. High Performance Reception
Junction-type
FET, three-gang tuning capaci-
tor, six special ceramic filters, and six-stage con-
stant bias current differential limiter assure superb
radio reception.
3. High Fidelity Waveform Transmission
Low distortion (and therefore high audio quali-
ty) are the result of special YAMAHA integrate
gain analysis, not only for all frequencies, but also
over a wide
range of input levels, from weak,
distant stations, to powerful local stations.
4. NFB PLL MPX Stereo Demodulator Section
Negative Feedback
(NFB)
phase-locked
loop
(PLL) multiplex (MPX) circuitry has all been built
into one high performance IC, replacing a host of
individual components, for greater reliability, im-
proved performance, and lowered cost.
5. Signal Meter with Quality Indication
Waves that reach the antenna after being re-
flected from nearby hills or buildings ('multipath'
CONTENTS
AND
FEATURES
Front Panel
and Controls
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kennen
4
Rear Panel
and Connections
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5
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Connecting and Operating the CT-610 with Other Components
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6
Block Diagram and Specifications
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Trouble Shooting — |»-..----
waves) interfere with the main broadcast signal,
and
degrade
performance.
The
CT-610
has a
special circuit which detects these waves, and uses
them to produce a 'waver' in the signal-strength
indication.
It is simple to turn the antenna for
minimum variation, giving maximum quality.
6. Standard 333 Hz Signal for Level Setting
The REC CAL function gives a standard signal,
ideal for recording calibration and optimum level
setting. The variable level setting has a center click-
stop for known rated output.
7. Muting Circuit for Quiet Inter-Station Traverse
8. Low Distortion AM Circuitry for Added Enjoy-
ment
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