Philips ah 673 owners manual

Page 2

INTRODUCTION

You are new the proud owner of one of the linest tuners on the market: the
Philips Model 673. This high quality instrument incorporates state of the _art
design technology and components to give you many years oi outstanding
performance and trouble free operation.

The front panel layoutis simple and strai ht torward using a combination oi
precisrort rotary controls and touch swi ches with LED (Lighting Emitting
Diode) indicators. The touch switches provide smooth silent operation Without
the pops and clicks" of mechanical Switches. The LED indicator located
above each set of touch contacts tells you at a glance which swrtches have
been activatedTwo separate ad iustments for AM and FM output level provide
you With the ultimate in flexibility and performance. These variable linear
controls allow adiustment from O . 1 volt for each output.

The wide view dial scale features tlnely etched, precision graphics. The line
resolution. large vieWing length and balanced graduations alongwlth a high
mhomertitugnflflywheel provrde fer easy viewingand a smooth. positive tuning
c arac er s c. .

Two tuning meters have been provided as additional tuning aids. The use oi
independent center-tune and signal strength meters enables you to tune in a
station quickly and accurately. At a touch oi the finger. the centervtune meter
becomes a multipath meter. The multipath meter in conjunction with the
signal strength meter allows you to independently observe optimum signal
strength and minimum multipath. This will permit adjustment of antenna
orientation tor ophmum signal reception. in addition to this convenient two
meter approach. horizontal, and vertical outputs are available on the rear
panel for oscilloscope viewnng oi multipath.

Full tide! AM has been incorporated into this tuner for perlonnance and response
on the Band ap teaching a quality once thou ht possible only through FM
transmission. it has 0 en been assumed that the tidal ty of AM would be poor at best.
but in tact. AM is capable oi verg fidelity, wide range response and low
distortion. Also incorporated is a 1 Hz sharp notch filter which, when activated.
considerably reduces any adjacent channel 10 KHz hetero a whistle when
listening to AM broadcasts. Touch the Automatic Stereo Noise ancelling Switch,
ASNC, and it activates a unique circuit which virtually eliminates the annoyance of

noisy FM stereo broadcasts and provides clear reception of marginally weak FM
stereo stations.

The Model. and Serial Number oi your Philips High Fidelity Laboratories
tuner will be lound on the rear or bottom at the instrument. Please record this
Model and Serial Number in the space provided below.

Model Number ____..Serial Number -

WARNlNG - TO PREVENT DAMAGE WHICH MAY RESULT IN FlfiE OR
SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR
EXCESSIVE MOISTURE.