TECHNICALFEATURESANDSPECIFICATIONSFORMAC1700
FMTUNERSECTION:
USEABLESENSITIVITY(at100%Modulation:2.5µV
[I.H.F.Standards)
SIGNALTONOISEANDHUMRATIO:65db.
HARMONICDISTORTION:Mono,lessthan.5%
Stereo,lessthan.8%
DRIFT:Lessthan25KC
FREQUENCYRESPONSE:Flatfrom20cpsto20KC
withstandard75µ secondde-emphasisand19KC
pilotfrequencyfilter.
CAPTURERATIO:Betterthan2.0db.
IMAGEREJECTION:Betterthan60db.
STEREOMULTIPLEXSEPARATION:Betterthan30db
at
1KC.
SPECIALFEATURES:
A)Automaticstereoswitching.
B)Muting;IFinjectedcircuitwithatleast50db
quietingbetweenstations.
C)Antennainputsfor300ohmbalanced(fortwin
lead)and75ohmunbalanced(forcoaxialcable).
D)NuvistorRFamplifier,Nuvistormixer.
E)FourstagesofIFamplification,withAGCused
toinsurelimitingoccursonlyinthelimiterstages.
F)Twolimiterstagesusedforexceptionalcapture
ratioandsmoothmutingoperation.
G)MultiplexfilterandSCAfilter,tosuppress19KC
and38KCsignalcomponentsatleast40dbbe-
lowprogramandtosuppress67KCSCAby60db.
H)Noiserejectinglogiccircuitusedtoactivate
MPXstereolightandautomaticstereoswitching
on19KCstereopilotonly.
I)D'Arsonvaltuningmeterforaccuratecenterof
channeltuning.
J)Flywheeltuningforeaseofoperationandpre-
cisetuning.
AMPLIFIERSECTION:
POWEROUTPUT:
40wattsRMScontinuousperchannelwithbothchan-
nelsoperatingsimultaneouslyinto4 ohmor8 ohm
loads.
80wattsRMScontinuousmonophonic.
30wattsRMScontinuousperchannelwithbothchan-
nelsoperatingsimultaneouslyinto16ohmloads.
60wattsRMScontinuousmonophonic.
HARMONICDISTORTION:Lessthan0.25%atrated
poweroutputfrom30cpsto20KCwithbothchan-
nelsoperating.
INTERMODULATIONDISTORTION:Lessthan0.25%
foranycombinationoffrequenciesfrom30cpsto
20KCifinstantaneouspeakpoweris80wattsper
channelorlessinto4 or8 ohmloadsand60watts
perchannelorlessinto16ohmloadswithboth
channelsoperating.
FREQUENCYRANGE:Atratedoutputbothchannels:
±0.5db20cyclesthrough20,000cycles.
+0,- 3db10cyclesthrough80,000cycles.
OUTPUTIMPEDANCE:4 ohms,8 ohms,16ohms,no
impedanceswitchingrequired.
INTERNALIMPEDANCEDAMPING:Lessthan.04
ohms;dampingfactorgreaterthan100.
INPUTSENSITIVITYANDIMPEDANCE:Auxiliary,
Tape,Tuner,andTapeMonitor;300MV,250K
ohms.
PHONO1 ANDPHONO2:2.4MV,47,000ohms.
TAPEHEAD:2.4MV,½ megohm.
TOTALNOISE(IncludingPowerAmplifier):
HighLevelInputs:75dbbelowratedoutput.
LowLevelInputs:76dbbelow10MVinput;equiv-
alenttolessthan1.5microvoltsatinput.
POWERAMPLIFIER:90dbbelowratedoutput.
TAPEOUTPUT:Tuner1.5volts,otherinputs300MVat
ratedsensitivity,1.3voltswith1 0 MVatphonoinput.
BASSCONTROLS:± 1 8dbat20cycles,withfriction
clutchforindependentadjustmentforeachchannel.
TREBLECONTROLS:±18dbat20,000cycleswith
frictionclutchforindependentadjustmentofeach
channel.
TAPEMONITORSWITCH:NormalorTapeMonitor,
indicatorlamplightsin"Monitor"position.
SPEAKERSWITCH:SpeakersONorOFFforhead-
phonelistening.
FILTER:Flator5,000cycleand60cyclecutoffat12db
peroctave.
LOUDNESSSWITCH:Normalorcompensated.
HEADPHONEJACK:Forlowimpedancestereohead-
phones.
INPUTSELECTOR:6 positions;AUX,TAPE,TUNER,
PHONO1,PHONO2,TAPEHD.
MODESELECTOR:Twopositions;Mono-Stereo
SEMICONDUCTORCOMPLEMENT:
Preamplifier16SiliconTransistors
PowerAmplifier1 8 SiliconTransistors
12Diodes
FMTUNER
8Tubes,4 Transistors,1 0 Diodes
PowerSupply8 Rectifiers
1ZenerDiode,1 Transistor
POWERREQUIREMENTS:1 1 7 volts,AC,50/60cycles,
70-270watts
MECHANICALSPECIFICATIONS:
SIZE:Frontpanel,16incheswideby5½incheshigh;
Chassis,15incheswideby51/8incheshighby14½
inchesdeep,includingconnectors.Clearanceinfront
ofmountingpanelincludingknobs,1 ½ inches.
WEIGHT:34poundsnet,47poundsin
shippingcarton.
FINISH:FrontPanel,Anodizedgoldandblack.
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