GTE 2400 User manual

GTE AUDIO COMPONENTS
OPERATING INSTRUCTIONSFOR MODEL 2 4 00

INTRODUCTION
Youaretheownerofoneofthemostsophisticated
andversatileaudioinstrumentsonthemarket.To
obtainthefullsoundqualityfromyourstereoreceiver,
itmustbecombinedwithspeakersystemsandother
accessoriesofequallyhighstandards.YourGTE
dealerwillbehappytoadviseyouwhenselecting
accessories.
Beforeoperatingthisreceiver,carefullyreadthe
instructionscontainedinthisbooklet.Itis
recommendedthatthisbookletbekeptwiththe
receiverforfuturereference.
TABLE OFCONTENTSPage
Introduction
2
Features
TunerSection3
AmplifierSection3
MuteCircuit3
PhaseQ-4 3
ProtectiveCircuits3
Stereo System SetUp4
Speaker System Connection 4
Antenna Connections 5
Power Source 5
Component Connections 6
Front Panel8
Sound System Operation
Aux10
AMReception10
FMReception10
Phono10
Microphone10
TapePlay10
TapeRecording10
RecordingTape 1 ontoTape2 10
Specifications 11
Care of Cabinet 12
Consumer Relations 12
WARNING: TOAVOIDPOSSIBLEFIREORSHOCK HAZARD, NEVEREXPOSETHIS
UNITTORAINORMOISTURE.IFSUCHEXPOSUREOCCURS,REMOVETHEPLUG
FROMTHEELECTRICALOUTLETANDHAVETHEEXPOSEDUNITCHECKEDBYA
COMPETENTSERVICETECHNICIAN.
2

TUNERSECTION
•FMFrontEndusesa FETina groundedgate
configurationlorexcellentsensitivityandsuperb
overloadrejection
•PLLstereomultiplexcircuitryusinganintegrated
circuittorlowdistortionandhighstabilityproviding
excellentstereoseparationoverlongtermuse.
•IFamplifiersectionutilizesceramicfilterswhich
provideexcellentimageandalternatechannel
rejection.
•Centertuneandsignalstrengthmetersmake
possibleoutstandingtuningaccuracy.
AMPLIFIER SECTION
•Direct-coupledOCLcircuitryutilizinginput dif-
ferentialmatchedtransistorpairsthroughtothe
complimentaryoutputtransistorsBecausethe
OCLcircuitryhasnooutputcapacitor,thepower
bandwidthinthelowfrequenciesisextended
beyondaudibility,providingmaximumlowfre-
quencyperformanceandexcellentdampening
characteristicsThecomplimentaryPNP-NPN
outputstagesalsoreducessignificantlythehigher
orderharmonicdistortionproducts,resultingin
cleanhighfrequencyreproduction.
•TonecontrolsutilizeBaxandallfeedbackcutboost
circuitryforpreciseadjustmentofbassandtreble
frequencies
•Phonopre-ampdistortionandnoisearekepttoa
minimumbyusinglownoisehighgaindevicesina
2stageDarlingtonpre-ampdesign.
MUTECIRCUIT
Thisreceiverincorporatesa FETaudiomutecircuit
whichisactivatedbytheFunctionButtonsandwhen
thereceiveristurnedonandoff.Attenuationofthe
audiosignalpreventsannoyingclicksandpops.
PHASEQ-4STEREO
Nowyoucanexperiencetotaldimensionalsound
.. .soundfromeverycorneroftheroom.TheGTE
PhaseQ-4matrixsystem,withfourspeakersinthe
sameroom,givestheeffectoffour-channelsound.In
almostanylivelisteningsituation,youhearsounds
froma numberofdirections.Soundfromthefrontfor
example,isreflectedoffrearandsidewalls.GTE's
PhaseQ-4approximatesa livelisteningsituation,
givingyoua newdimensioninstereosound.This
remarkableeffectisachievedwiththespeakersinthe
positionsindicatedinthediagram.Noticetherear
speakersareclosertothelistenerthanthemain
speakers.Thisarrangementcompensatesfora
slightlyloweraudiolevelfromtherearspeakers.
NOTE: Thissystemisdesignedtooperatewithstereo
orfour-channelmatrixprogrammaterialonly.When
listeningtomonauralprogramming,thePQ-4
speakersshouldbeturnedOFF.
PROTECTIVECIRCUITS
Yourreceiverincorporatesfourprotectivesystemsto
guardagainstabnormaloperatingconditionsthat
couldcausedamagetothereceiverorspeakers.
* Electronic Current Limiting
Protectstheamplifierfromimproperlyconnected
speakers.Iftheoutputisshortedorexcessively
loaded, theamplifierwillautomaticallylimitthe
outputsignaltosafelevels.
• Thermal Switch
Willshutoffthepowersupplytotheamplifier
sectioniftheinternaltemperaturebecomes
excessive.Theunitwillautomaticallycomeback
onwhenithascooled
•AC Power Overload Protection
Thisprotectionisprovidedbya FUSEwhichwill
shutoffyourreceiverincaseofanACpower
overload
* Electronic Speaker Protection
Providesspeakerprotectionincaseofcomponent
failureinthepoweramplifier.Thiselectronic
circuitwilldetectanyabnormalDCvoltageatthe
speakerterminalsandwillautomaticallyshutdown
thepoweramplifiersection.Normalsignalpower
capabilityoftheamplifierisnotimpairedbythis
circuit.
Ifallspeakersautomaticallyshutoffwhilethedial
remainslighted,turnyoursetOFF.Waitfor1
minuteandthenturnthesetbackON.Ifthe
speakersoperatemomentarilyandagainauto-
maticallyshutoff,unplugthesetfromtheelectrical
outletandconsultyourGTEdealer.
3
FEATURES

STEREOSYSTEMSETUP
•Wheninstallingandduringtheoperationofthis
receiver,caremustbetakennottocloseoffthe
ventarealocatedonthetopofthereceiver.One
inchminimumclearanceisrecommendedforsafe
andreliableperformance.
•Placementofyourspeakersystemswillvarywith
roomsize,acoustics,andpersonalpreference.
Thefollowinginformationwillassistyouinthefinal
placementofyourspeakersystems.
Generally,thespeakersystemsshouldbeplaced
atapproximatelyearlevelheight,andspacedat
leastsixtoeightfeetapart.Asthedistance
betweenspeakersystemsincreases,thestereo
separationbecomesmorepronounced.
Whenwiderspacingisused,anglethespeaker
systemsslightlysothattheprincipallisteningarea
intheroomiscovered.
•Witha highpowerstereosystem,improper
placementoftheturntablecanresultinacoustic
feedback(arumblingorhowlingsound).Acoustic
feedbackiscausedbyvibrationsfromtheloud
speakersreachingtheturntableandbeingre-
amplified.
Placingtheturntableona sturdyshelforcabinet,
andnotonorclosetoa speakercabinetwillreduce
theoccurenceoffeedback.
SPEAKER SYSTEMCONNECTION
Threesetsofspeakerterminals(A,B & PQ-4)are
providedonthereceiverwhichallowthe
connectionofthreesetsofspeakers.Useno
smallerthan18gaugewiretoconnectspeakersto
outputterminals.Alwaysbesurepositiveand
negativeoutputsareconnectedtocorresponding
positiveandnegativeterminalsonthespeakers.
CAUTION: BECAREFULTHATTHEWIRESDO
NOT"SHORT"EACHOTHEROUTATTHE
SPEAKERTERMINALS.
HelpfulHint:Mostlampcordor"ZIP"cordhasa
moldedridgealongonesidetoidentifypolarity.
Seeillustrationbelow.
•Speakerswitchesareconvenientlylocatedonthe
frontofthereceiversothatyoucanchangefrom
onespeakersystemtoanotherwithoutdiscon-
nectingandre-connectingaccessoryspeakers.
•Youcanlistenprivatelytoyourfavoritestereo
musicbypluggingaccessoryheadphonesintothe
built-instereophonejack.
Forrear(PQ-4)speakerstooperate,SystemA
SpeakerswitchandPQ-4switch(locatedonthe
rearofthereceiver)mustbeintheONposition.
HelpfulHint:WhenusingthePhaseQ-4matrix
system, itisrecommendedthatfrontspeakersbe
connectedtoSPEAKERB terminalsandrear
speakerstoPQ-4terminals.Withspeakers
connectedinthismanner,youcanturnrear
speakersoffsimplybyswitchingSYSTEMA
SpeakerswitchOFF.
Whenremotespeakersareused,itisrecom-
mendedthatfrontspeakersbeconnectedto
SPEAKERA terminals,rearspeakerstoPQ-4
terminalsandremotespeakerstoSPEAKERB
terminals.Withspeakersconnectedinthis
manner,rearspeakerscanbeturnedoffbysliding
PQ-4switchOFF.
CAUTION: CONNECTONLYSPEAKERSWHICH
ARE RECOMMENDEDFORUSEWITH AMPLI-
FIERSRATEDAT55WATTSORHIGHER.USE
OFSPEAKERSRECOMMENDEDFOR AMPLI-
FIERSRATEDATLESSTHAN55WATTSMAY
RESULTINPERMANENTDAMAGETOTHE
SPEAKERS ANDTHERECEIVERIFPLAYEDAT
HIGH LEVELS.
4

AM ANTENNACONNECTION
•SlideferriterodAMantennaassembly(contained
inseparatebag)intoholderandplug-inconnector.
AnExternalLongLineAMAntennamaybe
attachedbyconnectinglead-inwirefromantenna
torightAMANTENNAterminalandconnecting
ground(left)terminaltoa goodearthground,such
asa waterpipe.
NOTE: TheAMferriterodmustremainattached
forproperoperation.
FMANTENNACONNECTIONS
•ConnectleadsfromtheFMdipoleantenna
(suppliedwithreceiver)tothe300OHMFM
ANTENNAterminals.
Toattacha 300OhmExternalFMAntenna,
connecttheleadsfromtheantennatothe300
OHMFMANTENNAterminals.
Ifa 75OhmExternalFMAntennaistobeused,
connectthecoaxialcabletothe75OHMFM
ANTENNAjack
NOTE: UseonlyoneFMantennaeither75ohm
or300ohmatanyonetime
POWERSOURCE
Afterconnectingallcomponentstothereceiver,plug
inAClinecordtoa 120Volt,60Hertz(cycle)
alternatingcurrect(AC)only.Neverconnectthe
receivertoanelectricaloutlethavinga different
frequencyorvoltage.Permanentdamagetoyour
systemmayresult.
Note: Ifyourreceiverwillnotoperateoritsuddenly
goesoff,checkfuse.Iffusehasburnedoutreplace
withfusehavingsameamperagerating.If
replacementfusealsoburnsout,consultyour
authorizedGTEdealer.
ANTENNA CONNECTIONS
FM
OUTDOOR
ANTENNA
5

COMPONENT
NOTE: Makeallantennaandcomponent
connectionsbeforeturningpowerON
PHONO JACKS
Thetwophonoinputsallowfortheuseoftwo
turntables.
•SelecteitherthePHONOONEorTWOjacksand
plugturntablecablesintotheappropriateleftand
rightjacks.ConnectgroundwireunderPHONO
GROUNDterminal( V ).
•PHONOONEinputimpedancemaybeselectedfor
47kohm aswellas100kohm.Checkcartridge
specificationsforimpedancevalue.
SlidePHONOONEswitchtoappropriateinput
impedance.PHONOTWOinputimpedanceis 47kohm
only.
AUX JACKS
Plugtheoutputofaccessoryequipmentintotheap-
propriateleftandrightjacks.Typicalaccessoriesare:
•8-track,cassette,orreeltoreeltapeplaydeck.
•Microphoneormusicalinstrumentwithpre-
amplifier.
TAPE JACKS
Thetwosetsoftapejacksallowfortheuseoftwo
tapedecks.
Record
•ConnecttherecordLINEINPUTjacksofthetape
decktotheTAPEONE(orTWO)RECORDjacks.
Play
•ConnecttheplaybackLINEOUTPUTjacksofthe
tapedecktotheTAPEONE(orTWO)PLAY.
PRE-AMP
Thepre-amplifiersignalsarerelayedfromthe
PRE-AMPjackstothe-AMPjacksbytheuseof
jumpers.Thesejumpersmaybereplacedwith
accessoryequipmentsuchas:
•EnvironmentalEqualizer— toshapefrequency
responsetosuitroomacoustics.
6

CONNECTIONS
•SlavePowerAmplifier— todrivemultiplespeaker
systems.
•CrossoverNetworkanda SlavePowerAmplifier—
toconvertreceivertobi-ampoperation.
CAUTION: REMOVINGJUMPERSWITHPOWER
ONMAYRESULTINPERMANENTDAMAGETO
SPEAKERS ANDRECEIVER.
Toconnectanenvironmentalequalizer:
•TurnpowerOFF.
•Removejumpers.
•PlugcablesfromPRE-AMPjackstoenvironmental
equalizerinputjacks.
•PlugcablesfromAMPjackstoenvironmental
equalizeroutputjacks.
•Checkchannelconnectionsforproperhook-up
beforeturningpowerON.
Toconnecta slavepoweramplifier:
•TurnpowerOFF.
•Removejumpers.
•Usinga commerciallyavailable"Y"connector,
connectleftchannel(L)PRE-AMPandAMPjacks
toleftchannel(L)slaveamplifierjack.
•Repeatabovesteptoconnectrightchannel.
•Checkchannelconnectionsforproperhook-up
beforeturningpowerON.
NOTE: Youwillbeabletocontroltheslaveamplifier
throughthereceiverVOLUME,BALANCEandTONE
controls.
Toconnecta crossovernetworkanda slavepower
amplifier:
•TurnpowerOFF.
•Removejumpers.
•Plugcablefromleft(L)PRE-AMPjacktoleft
crossovernetworkinputjack.
•Plugcablefromleftchannellow-frequencysection
ofcrossovernetworktoleftchanneljackof
amplifierhavinghigherpowerrating.
•Plugcablefromleftchannelhigh-frequency
sectionofcrossovernetworktoleftchanneljackof
amplifierhavinglowerpowerrating.
•Repeatabovestepstoconnectrightchannel.
•Checkchannelconnectionsforproperhook-up
beforeturningpowerON.
NOTE: Whenusinga crossovernetworkanda slave
poweramplifierforbi-ampoperation,youwillbeable
toutilizeboththereceiveramplifierandslave
amplifier;andbeabletocontrolboththroughthe
receiverVOLUME,BALANCEandTONEcontrols.
UNSWITCHEDACOUTLETS
Plugaccessorycomponentssuchasturntablesor
tapedecksintotheseoutlets.Theoutletsremainon
whenthereceiverpowerswitchisturnedoff.
SWITCHEDACOUTLET
Plugassociatedelectroniccomponentssuchasan
environmentalequalizerorslaveamplifierintothis
outlet.Thisoutletwillbeoffwhenthereceiverpower
isoff.
NOTE: Donotusethisoutletforturntables,tape
decksorothermotordrivenaccessories.
WARNING: TOAVOIDA POSSIBLESHOCK
HAZARD, DONOTCONNECTANYACCESSORY
WHICHDOESNOTHAVEA MANUFACTURER
SUPPLIEDAUDIOOUTPUT JACK.
7

FRONT
FM DIAL— INDICATESFMSTATIONFREQUENCIES
88TO108MHz
AM DIAL — INDICATESAMSTATION
FREQUENCIES520TO1630kHz.
FMMPXINDICATOR—LIGHTGLOWSWHENYOU
HAVETUNEDINA STEREOBROADCAST.
NOTE: INDICATORWILLNOTLIGHTWHENMONO
BUTTONISDEPRESSEDEVENIFTUNEDTO
STEREOBROADCAST
FMTUNINGMETER— INDICATESBESTFM
TUNINGWHENPOINTERISCENTERED.
SIGNAL-STRENGTHMETER— INDICATESBEST
AMANDFMRECEPTIONWHENPOINTERISASFAR
RIGHTASPOSSIBLE.ITISALSOUSEFULFOR
ORIENTINGANTENNAFOROPTIMUMSIGNAL
STRENGTHONFM.
MIC JACK — FORMICROPHONEORMUSICAL
INSTRUMENTINPUT.
POWER— TOTURNRECEIVERONANDOFF.
PHONES JACK — TOPLUGINSTEREOHEAD-
PHONES.
SYSTEMA SPEAKERSWITCH— TOSELECT
SYSTEMA ANDPO-4SPEAKERSYSTEMS
SYSTEMB SPEAKERSWITCH— TOSELECT
SYSTEMB SPEAKERSYSTEM.
TREBLE— TOCUTORBOOSTHIGHFREQUENCY
TONESSUCHASFLUTESORVIOLINS
BASS — TOCUTORBOOSTLOWFREQUENCY
TONES, SUCHASKETTLEDRUMSORORGAN
PEDALNOTES.
BALANCE —TOADJUSTFOREQUALLEVELFROM
LEFTANDRIGHTSPEAKERS,TURNKNOB
CLOCKWISETOREDUCELEVELINLEFTCHANNEL.
COUNTERCLOCKWISETOREDUCELEVELINRIGHT
CHANNEL.
8

PANEL
LOG SCALE—QUICKREFERENCETUNINGGUIDE
THATPROVIDESLOGSCALEREFERENCENUM-
BERSWHICHCANBEUSEDTORELOCATE
FAVORITESTATIONS.
TUNING—TOSELECTAM& FMSTATIONS.
MONO— ENGAGESSYSTEMFORMONAURAL
SOURCES.ITALSOSWITCHESFMTUNERTO
MONO; THISWILLREDUCETHENOISEONWEAK
FMSTEREOSTATIONS
LOUDNESS—TOINCREASEBASSFREQUENCIES
FORPROPERTONALBALANCEATLOWLISTENING
LEVELS.
FM— TOENGAGESYSTEMFORFMRECEPTION.
FMMUTE— ELIMINATESINTERSTATIONNOISE
ANDWEAKNOISYFMSTATIONS.PUSHTOMUTE.
SHOULDYOUWISHTOSEARCHFORORLISTEN
TOWEAKSIGNALSTATIONSRELEASEMUTE
BUTTON.
AM — TOENGAGESYSTEMFORAMRECEPTION.
AUX — TOENGAGESYSTEMFORAUXILIARY
COMPONENTS.
HIGHANDLOWFILTERS— HIGHFILTERRE-
DUCESHIGHFREQUENCYTAPEHISS,RECORD
SCRATCHNOISEANDCUTSOFFFREQUENCIES
ABOVE10kHz.LOWFILTERREDUCESTURNTABLE
RUMBLEANDACOUSTICALFEEDBACK.
PHONOONEORTWO— TOENGAGESYSTEM
FORPHONOGRAPHPLAY.
MIC— TOENGAGESYSTEMFORMICROPHONE
USE.
TAPE ONEANDTWO—TOENGAGESYSTEMFOR
ACCESSORYTAPEPLAYORTAPEMONITORING.
NOTE: TAPEBUTTONSMUSTBERELEASED
FORFM,AM,PHONO,MIC,ORAUX
FUNCTIONS.
VOLUME—TOADJUSTAUDIOLEVEL,TURNKNOB
CLOCKWISETOINCREASEVOLUME.
NOTE: ALWAYSSETVOLUMETOMIN"0"
POSITIONBEFORETURNINGONRE-
CEIVER.
9

SOUNDSYSTEMOPERATION
BeforeturningthepowerON,setcontrolsand
switchesasfollows:
•VOLUMEcontroltoMINposition.
•TREBLE,BASS,andBALANCEcontrolstocenter
(0) position.
•SwitchappropriatespeakersystemON.See
"SpeakerSystemConnection."
•TAPEONEandTWObuttonstoOFF(unpushed)
position.
AUX
•Connectaccessoryunittorearofreceiver.See
"ComponentConnections".
•DepressAUXbutton.
•AdjustTREBLE,BASSandVOLUMEcontrolsfor
preferredloudnessandtone.
AM RECEPTION
•DepressAMbutton.
•RotateTUNINGcontroltoselectdesiredstationas
indicatedonAM dial. Receptionisoptimumwhen
pointeronSIGNAL-STRENGTHMETERisasfarto
rightaspossible.
•AdjustTREBLE,BASSandVOLUMEcontrolsfor
preferredloudnessandtone.
FMRECEPTION
•DepressFMbutton.
•RotateTUNINGcontroltoselectdesiredstationas
indicatedonFM dial. Receptionisoptimumwhen
pointerofFMTUNINGMETERiscenteredand
SIGNAL-STRENGTHMETERisasfartotherightas
possible.
•AdjustTREBLE,BASSandVOLUMEcontrolsfor
preferredloudnessandtone.
PHONO
•Connectturntabletorearofreceiver.See
"ComponentConnections".
•DepressappropriatePHONObutton.
•Whenplayingmonauralrecords,depressMONO
button.
•AdjustTREBLE,BASSandVOLUMEcontrolsfor
preferredloudnessandtone.
•Foradditionalinformationrefertoinstructions
suppliedwithyourturntable.
MICROPHONE
•Connectthemicrophoneormusicalinstrumentto
MICjack.Useeithera monoorstereotypephone
plug(SeeNote).
•DepressMONOpushbuttonifmonotypephone
plugisused.
•DepressbothPHONOONEandTWObuttons.Both
buttonsmustbedepressedtoselectthe
microphoneinput.
NOTE: Themicrophonejackusedonthisreceiverisa
3circuittypesimilartoa stereoheadphone
jack.Touse(2)stereomicrophones,a
commerciallyavailable"Y"adaptershouldbe
used.
TAPE PLAY
•ConnecttapeequipmenttoTAPEPLAYjackson
rearofreceiver.See"ComponentConnections".
•DepressappropriateTAPEbutton.
•AdjustTREBLE,BASSandVOLUMEcontrolsfor
preferredloudnessandtone.
•Foradditionalinformationconsulttheinstructions
suppliedwithyourtapedeck.
TAPE RECORDING
•ConnecttapeequipmenttoTAPERECORDjacks
onrearofreceiver.See"Component Con-
nections".
•Selectprogramsourceasdescribedunder
sectionsAUX,AM,FM,PHONOorMICROPHONE.
Theprogramsourcesignalisalwayspresentatthe
TAPEONE(andTWO)RECORDjacksallowing
simultaneousrecordingofsignalsources.Signal
sourceisnotaffectedbythesettingsofthe
TREBLE,BASS,VOLUMEorBALANCEcontrols.
•Ifthetapedeckisa 3-headtupeequippedwitha
tapemonitorfunction,therecordingcanbe
monitoredbydepressingtheappropriateTAPE
button. BoththePLAYandRECORDjacksmustbe
connectedtothetapedeck.Seeillustrationon
page11.
•Foradditionalinformationconsulttheinstructions
suppliedwithyourtapedeck.
RECORDINGTAPE1 ONTOTAPE2
•Connecttapedeck1 toTAPEONEjacksand
connecttapedeck2 toTAPETWOjacks.
•DepressTAPEONEbutton.
•A tapeplayedontapedeck1 cannowberecorded
ontapedeck2.
•Iftapedeck2 isa 3-headtypeequippedwitha
monitorfunction,pushtheTAPETWObuttonto
monitortherecording.SeeIllustrationonpage11.
10

SPECIFICATIONS
AMPLIFIER RATED CONTINUOUS AVERAGE POWER OUTPUT: 55 WATTS PERCHANNELMINRMS
INTO 4-8 OHMS FROM 20HZTO20KHZ, WITH NO MORE THAN0.1% TOTAL HARMONIC DISTORTION
(BOTHCHANNELS DRIVEN TO RATED PER-CHANNEL POWER).
MeasuredpersuanitoFederalTradeCommissionRegulationruleonPowerOutputClaims(orAmplifiers.
AMPLIFIER
DampingFactor 35
DISTORTION
Totalharmonicdistortion
(THD)atratedcontinuouspower
Totalharmonicdistortion
(THD)atratedcontinuouspower Lessthan0.1%
IMdistortion (60/7000 4:1)at
ratedcontinuouspower
IMdistortion (60/7000 4:1)at
ratedcontinuouspower Lessthan0.1%
FREQUENCY RESPONSE
Tape Input 20Hz -> 20kHz ±1dB
PhonoRIAAstandard ±1.0dB
FILTERS
HighFilter@ 20kHz -20dB
12dB/octave
-20dB
12dB/octave
LowFilter@ 20kHz -20dB
12dB/octave
-20dB
12dB/octave
LOUDNESS CONTOUR
VolumeControl(MidPosition)
100Hz +8dB
1000Hz 0dB
TONE CONTROL ACTION
BassControl,100Hz ±10dB
TrebleControl, 10kHz ±10dB
INPUT SENSITIVITY
Forratedcontinuouspower
PowerAmp 1.5V
Tape 1 and2 250mV
Aux 250mV
Phono 2.5mV
Mic 2.5mV
INPUT IMPEDANCE
Tape 1 and2 50,000 ohms
Aux 50,000 ohms
Phono1
47,000/100,000 ohms
Phono2 47,000 ohms
Mic 47,000 ohms
OUTPUT LEVEL
Forrateocontinuouspower
Tape Output 250mV
PreampOutput 1.5V
OUTPUT IMPEDANCE
Tape Out 5,000 ohms
PreampOutput 5,000 ohms
PhonoOverload 80mV @ 1kHz
SIGNALTO NOISE RATIO (UNWEIGHTED)
Phono 80dBbelow
10mVinput
80dBbelow
10mVinput
Tape
86dBbelow
250mV input
86dBbelow
250mV input
Aux 86dBbelow
250mV input
86dBbelow
250mV input
Mic 70dBbelow
10mVinput
70dBbelow
10mVinput
FM TUNER
UsableSensitivity(IHF) *10.3dBf(1.8uV)
20dBSignaltoNoise 8.7dBf(1.5uV)
50dBquietingsensitivity 14.8dBf(3.0uV)
SignaltoNoiseRatio100%mod. 70dB
CaptureRatio(IHF) 1.5dB
Full Limiting(1dB) 6.8dBf(1.2uV)
ImageRejection 55dB
AlternateChannelRejection 67dB
IFRejection@ 98MHz 65dB
Spurious Response (1/2lF) 80dB
AMSuppression 45dB
TotalHarmonicDistortion(THD)
FMMono 0.3%
FMStereo 0.3%
StereoSeparation
1kHz 40dB
50Hz/10kHz 30dB
FMMutingThreshold 13.9dBf(2.7uV)
AM TUNER
Sensitivity 20dBS/N
30%mod., 400Hz, 1.4MHz
200uV/m
ImageRejection 1.4MHz 63dB
Selectivity ± 10kHz, 1.4MHz 35dB
AGCFigure
ot merit1.4MHz
AGCFigure
ot merit1.4MHz 43dB
•NewIHFratinginfemtowattsOdBf= 10-15W = .55uV
into 300ohms.
1 1

CARE OFYOURCABINET
GTEcabinetsarequalityconstructedandcraftedin
durablefinishes.Occasionallywipecabinetsurfaces
witha cleancloth.Applya thin, evencoatofa good
gradecommercialwaxorpolishtothecabinet
surfaces.Rubthewaxedsurfacesgentlywitha soft
dryclothtoobtainthedesiredluster.
Wheneveritbecomesnecessarytocleanthenon-
woodpartsofyourinstrumentbesuretoobservethe
followingprecaution.
•Cleaning— (WARNING:TOAVOIDPOSSIBLE
SHOCKHAZARD,BESURETHESETISUN-
PLUGGEDFROMTHEELECTRICALOUTLET
BEFORECLEANING.)Usea clean,softcloth,
chamois,orspongedampenedwitha solutionof
coolclearwateranda mildsoapordetergent.
Gentlywipethenonwoodsurfaces.
•Drythewipedsurfaceswitha clean,softcloth.
CONSUMERRELATIONS
Ifatanytimethisproductdoesnotfulfillyour
expectations,andyourGTEDealerisunabletomake
asatisfactoryadjustment,pleasewritetothe
followingaddress:
GTESylvaniaIncorporated
ConsumerRelations
17MassePlace
Batavia,NewYork14020
Wewelcometheopportunitytoassureyourfaithin
thequalityofourproducts.
We advise youuseGTE Recommended Replacement Parts
SPECIFICATIONSSUBJECTTOCHANGE
WITHOUTNOTICE
GTESYLVANIA
INCORPORATED
Entertainment Products Group, 700 Ellicott Street, Batavia, New York 14020
Printedin U.S.A.
05-42937-2