• Home
• Advanced Search Objects
• Advanced Search Objects: results

Advanced Search Objects: results

ListImages

RelevanceTitle (A–Z)Date (Older First)Object number (Ascending)Primary Maker (A-Z)

• Filter
• Collect

Name

Date Range

Classification(s)AllAbacusAbsorptiometerAccessoryAcoumeterAcoustic Glass BellAcoustic InstrumentActinometerAdding MachineAdding and Printing MachineAerial CameraAerographAgitatorAir PumpAir Pump AccessoryAir Pump PartsAirbrushAlcohol BurnerAlcoholometerAlidadeAlmucantarAltimeterAluminum FoilAmmeterAmplifierAnalytical BalanceAnalyzerAnamorphosis CardsAnamorphosis MirrorAnatomical modelAnatomical specimenAnechoic Chamber WedgesAnemo-CinemographAnemometerAnemometer PieceAnemoscopeAngleAngle DividerAngle-Measuring InstrumentAnodeAntennaAnthropometric Measuring ToolsApertureApparatusArc LampArc Lamp CarbonsArchitect's RuleArchitectural DrawingsArmillary SphereArmour PlateArtificial HorizonAssay KitAstatic GalvanometerAstro-compassAstrolabeAstrolabe QuadrantAstronomical ApparatusAstronomical CompendiumAstronomical quadrantAtomizerAttenuatorAtwood's MachineAudio Recording TapeAudiometerAutoclaveAutomatic Fraction CollectorAutomatic dialerAvionicsAzimuth InstrumentBackstaffBalanceBalance WeightsBallBallistic PendulumBarlow's wheelBarographBarometerBaseBase/StandBathBatteryBattery BoxBattery ChargerBeam LineBeam SplitterBeam compassBeeperBellBell JarBellsBetamax Video RecorderBinding PostBiofeedback unitBiofreeze Automatic Etching MachineBirdfeederBirefringent SpecimensBlank ChartsBlocksBlood PumpBlowpipeBlowtorchBlueprintBoiling Point ApparatusBomb Fuse/Timing ApparatusBookBoomerangBottleBoxBrickBridgeBrushBucketBurglar AlarmBurnerButtonCabinetCableCablesCageCalculating DeviceCalculating InstrumentCalculating MachineCalculatorCalendarCalenderCalibrated CircleCalibratorCalorimeterCameraCamera AccessoriesCamera BagCamera EquipmentCamera FlashCamera KitCamera LucidaCamera ObscuraCamera PartCamera StandCandleCapacitorCapacitor BoxCarbon ButtonsCardioscopeCardsCartCartesian DiverCaseCasting PatternCat skinCathetometerCathetometer PartsCathode Ray TubeCellCementCentral Processor UnitCentral Processor Unit ChipCentrifugeCentripetal Force DemonstrationCeramicsCertificateCharge SphereChartChart DrumChart PaperChart RecorderCharts and PicturesChemicalChemistry ApparatusChemistry SetChladni PlateChronographChronographic DeviceChronometerChronoscopeCigarette LighterCinemograph Mill SailsCircuitCircuit BoardCircumferentorClampClampsClinometerClockClock DriveClock PartClock Pendulum BobClothes WringerCloud ChamberCoastersCoffee BeansCohererCoilCoinCoincidence CounterColor Blindness ApparatusColor DiskColor FiltersColor GlobeColor Hue Discrimination TestColor MixerColor PhotometerColor PyramidColor Space ModelColor TopColor WheelColored PaperColorimeterColorimeter TubesCometariumCommemorative PlateCommunications ApparatusCommunications DeviceComparatorComparator AccessoriesCompassCompass CardCompass NeedleCompensatorComplication apparatusComputerComputer ElementComputer KeyboardComputer MemoryComputer MouseComputer PartComputer Tape/StorageComputer TerminalComputer chipComputing EquipmentComputing RuleCondenserCondenser KitConductorContact KeyContainerContour FinderContrast ApparatusControl BoxControl ConsoleControl HammerController BoxController CardCopierCoppper JacketCore MemoryCounterCounting mechanismCouplerCourse IndicatorCourse recorderCoverCrankCross-staffCrosshairsCrucibleCrystalCrystallographic ApparatusCrystalsCumulative RecorderD'Arsonval GalvanometerDNA SequencerDarkroom EquipmentData DiskDe La Rive's EggDecade BoxDecorative ArtsDecremeterDemonstrationDemonstration ApparatusDemonstration DeviceDemonstration ModelDepression Position FinderDesiccatorDetectorDeviascopeDewpoint Measuring InstrumentDiagnostic SetDiagramDialDial IndicatorDiamond balanceDiaphragmDiffraction ApparatusDiffraction GratingDiffraction Grating MountDiffusion GlassDiodeDip NeedleDip NeedlesDipstickDiscDisc CuttersDischarge ApparatusDischarge Bell JarDischarge GlobeDischarge RodDischarge TreeDischarge TubeDischargerDiscrimination ApparatusDishDiskDisk DriveDisplay CaseDissecting BoardDissecting ToolsDistribution machineDividersDividers/CalipersDividing EngineDosimeterDrafting AidDrafting EquipmentDrafting MachineDrawingDrawing CurvesDrawing InstrumentDrawing InstrumentsDrawing compassDrawing?Dropping BottleDrum Power SourceDry PileDrying OvenDust CounterDynamoDynamometerEar TrumpetElectric ArcElectric BalanceElectric PlateElectrical ApparatusElectrical ChimesElectrical MachineElectricity EquipmentElectro-Medical ApparatusElectrocardiographElectrocautery MachineElectrochemical apparatusElectrodeElectroencephalographElectromagnetElectromagnetic ApparatusElectromagnetic GeneratorElectrometerElectrometer AmplifierElectrometer StandElectronic CalculatorElectronic ComponentElectronic EquipmentElectronic FlashElectrophorusElectroscopeElectrostatic ApparatusElectrostatic MachineElectrostatic Printing PressElectrostatic SignElectrostatic StandEllipsographEllipsometerEmbossing StampEndoscopeEngineEngine ModelEngineer's ruleEngravingEpiscotisterEscapement ModelEtchingEtuiEudiometerEvaporimeterExperimentExperimental ApparatusExposure MeterEye ModelEye ShieldEyepieceEyepiece AdaptorFacial ProfileFanFaraday CageFaraday's bagFeetField equipmentFilar MicrometerFilesFilmFilm EditorFilm HolderFilterFiltersFine ArtFire StarterFire SyringeFirearmsFlash point apparatusFlaskFlat Panel DisplayFloor PlanFloppy Disk with SoftwareFloppy DiskettesFluoroscopeFluoroscope ScreenFluxmeterFoilFoot ruleForce GaugeForcepsFountainFrameFrequency MeterFrequency StandardFriction Drive ApparatusFriction MachineFurFurnaceFuse HolderGPS unitGaging RodGaging Rod for LiquidsGalton barGalvanometerGalvanometer AccessoriesGalvanometer CoilsGalvanometer LightGalvanometer NeedleGalvanometer PartsGalvanometer ScaleGalvanometer ShuntGas Demonstration ApparatusGas EngineGas Flow MeterGas GeneratorGas HolderGas TankGas-Specific Gravity ApparatusGasoline EngineGaugeGauge testing apparatusGear BoxGear ReductionGearingGeiger CounterGeissler Tube RotatorGelatine SheetGeneratorGeomancer's CompassGlassGlass ApparatusGlass BeakerGlass BottleGlass DiskGlass PiercerGlass PlateGlass RodGlass TubesGlass plate negativeGlassesGlasswareGlassware-ElectricityGlassware/CeramicsGlassware/ChemicalGliderGlobeGlobe StandGogglesGold balanceGoniometerGraphGraphic TerminalGraphometerGrounded Short GapGrove CellGunner's caliperGunner's quadrantGunter's ScaleGyroscopeHaemacytometerHair RemoverHammerHandbillHandleHaploscopeHard DiskHard Disk UnitHard DriveHardwareHarmonic AnalyzerHarmoniumHarmonographHeadphonesHearing AidHeat Demonstration ApparatusHeat ToolHeated Wire Expansion MeasurerHeliostatHelmetHelmholtz Sound SynthesizerHelmholtz resonatorHero's EngineHerschel WedgeHertz Wave Spark OscillatorHigh-Pressure ApparatusHigh-Pressure SampleHigh-Pressure SamplesHodometerHolderHookHoropter modelHot Air EngineHumitex ChartsHummerHydraulic ApparatusHydraulic FountainHydraulic PressHydraulic PumpHydraulic RamHydrometerHydrometersHydrophoneHydrostatic BalanceHygrometerHypnoscopeIgnitorIllustrationInclined PlaneIndicatorInductanceInductance CoilInduction CoilInductorInductor ?InductoriumInertia WheelInfusion PumpInkInk DispenserInsertion UnitsInstructionsInstrument ComponentInstrument RackInsulated StandInsulated StoolInsulating StandInsulatorIntegraphIntegratorIntercomInterference Pattern ApparatusInterferometerInterferometer Test PlateInterferoscopeInterrupterIonization ChamberIron FilingsJarJewelry BoxJovilabeKaleidophoneKaleidoscopeKerr CellKeyKey PunchKeyboardKinesimeterKiteKite MeteorographKlystronKnifeKoenig cylindersKymographLaboratoryLaboratory ApparatusLaboratory BurnerLaboratory EquipmentLaboratory GlasswareLaboratory InstrumentLaboratory NotesLadleLampLamp CircuitLamp/AlarmLanternLantern SlideLantern Slide CaseLantern Slide MountLantern Slide ProjectorLantern SlidesLantern slide carrierLaserLead HemisphereLead ShotLensLens CellLens MountLens SetLens holderLensesLeslie's CubeLetterLetter ScaleLettering SetLettering guideLevelLevel (Engineer's)Leveling RodLevelsLeyden JarLicenseLightLight BoxLight BulbLight Bulb ApparatusLight BulbsLight GuideLight MeterLight SourceLight StandLightingLine Driver UnitLinear Glass ScalesLiquid CellLissajous ApparatusLithographLocomotive ModelLodestoneLogLog BookLubricatorMach Bands ApparatusMagdeburg HemispheresMagic LanternMagnetMagnet NeedleMagnetic CompassMagnetic NeedleMagnetometerMagnetronMagnetsMagnifierMagnifying GlassMalletManometerManometric Flame ApparatusMapMapsMass Spectroscopy ApparatusMathematical ModelMeasuring DeviceMeasuring PlateMeasuring RuleMeasuring TapeMeasuring engineMechanics demonstration apparatusMedalMedical Electrical DeviceMedical InstrumentMedicine BottleMegaphoneMemorabiliaMemory DrumMemoscopeMercuryMercury FountainMeridian CircleMetalMetal Expansion and ContractionMetal RodMetal SampleMetal SamplesMetal fittingsMeteograph CaseMeteorographMeteorological ChartMeteorologyMeterMeter ruleMetronomeMezzotintMicrochipMicrochipsMicrofilmMicrometerMicrophoneMicroscopeMicroscope AccessoriesMicroscope AccessoryMicroscope BaseMicroscope CameraMicroscope CaseMicroscope CondenserMicroscope Finder SlideMicroscope IlluminatorMicroscope Light SourceMicroscope ObjectiveMicroscope Objective CanisterMicroscope OcularMicroscope Optical BenchMicroscope OpticsMicroscope Polarizing OpticsMicroscope SlideMicroscope Slide AccessoriesMicroscope Slide CabinetMicroscope StageMicroscope Test SlideMicrotomeMicrotome AccessoryMicrotome KnifeMicrotome Knife StropMill Gearing ModelMillikan Oil Drop ApparatusMiner's CompassMineralMineral SampleMirrorMirror BlankMirror HolderMiscellaneousMiscellaneous PartsMiscellaneous Tools/InstrumentsModelModel Suspension BridgeModemMoist ChamberMoldMolecular ModelMoney BalanceMonitorMonitor TerminalMonochromatorMonroe CalculatorMortar and PestleMotion Picture CameraMotion Picture ProjectorMotorMountMounted Biological SpecimenMovie ProjectorMuffleMultimeterMultiplierMusical InstrumentMusical Instrument BowNMR ProbeNapier's BonesNavigation EquipmentNavigational InstrumentNephoscopeNernst GlowerNernst's apparatusNeutron DetectorNewton's RingsNipher ShieldNocturnalNoise MeterNoisemakerNotebookNozzleNuclear Magnetic ResonanceObedience ExperimentObject glass micrometerObjectiveObjective PrismOctantOil PaintingOlfactometerOperant Conditioning ChamberOperant Conditioning ModuleOphthalmometerOphthalmotropeOptical AccessoryOptical ApparatusOptical BenchOptical Bench AccessoryOptical Bench EquipmentOptical ComponentOptical Demonstration ApparatusOptical EquipmentOptical FlatOptical Glass SpecimensOptical InstrumentOptical Projection SystemOptical illusionOpticsOptics ApparatusOrgan PipeOrreryOrthostereoscopeOscillatorOscillographOscilloscopeOsmometerOsmoscopeOvenOzone GeneratorPage From BookPaintingPanelPantographPaperPaper RollPaper Tape Hole PuncherPapersParachuteParallel rulePartPartsPascal VasePatentPatternPedometerPelorusPencilPencil PointerPendulumPendulum Timer SwitchPenetrometerPensPentane LampPercussion ApparatusPerfusion PumpPerimeterPeristaltic PumpPermeameterPestlePhacoscopePhonautographPhonodeik recordingPhonographPhonograph RecordsPhoroptorPhosphorescent SpecimensPhosphoroscopePhotobioscopePhotocellPhotoelectric CellPhotographPhotographic ApparatusPhotographic ChemicalsPhotographic EquipmentPhotographic FiltersPhotographic LensPhotographic PlatePhotographic Plate HolderPhotographic PlatesPhotographic SlidesPhotographic ViewerPhotographic accessoriesPhotographic filmPhotographsPhotometerPhotomicrographPhotomultiplier TubePhotostatPhysicsPhysics DemonstrationPhysics ExperimentPiezometerPigeon ChamberPipette MakerPlanar Memory ModulePlane TablePlanetariumPlanimeterPlanispherePlaquePlatesPlotting devicePlug BoardPlumb BobPlumePneumatic TroughPocket CalculatorPolarimeterPolariscopePolarity SwitchPolarizationPolarization ApparatusPolarization SpecimensPolarizerPolePonographPorcelainPortraitPositionerPosterPotPotentiometerPower AmplifierPower SupplyPressPressure GaugePrice ListPrince Rupert's DropsPrintPrint materialPrinterPrinting BlockPrismPrism TrainPrismatic CompassProbatorProbeProgramming TapesProjection EquipmentProjection LensProjection PointerProjectorProportional compassProsthetic deviceProtractorProtractor (Navigation Chart)Proximity FusePsychological testPulleyPulse GeneratorPulse RecorderPump modelPunch Card ReaderPunched TapePunched Tape ReaderPursuit RotorPuzzlePycnometerPyrheliometerPyrometerQibla IndicatorQuadrantQuartz PrismsQuartz SliversQuincke's tubesRadar Counter-MeasureRadiation ApparatusRadiation Demonstration ApparatusRadioRadio AmplifierRadio ApparatusRadio BoxRadio Broadcast ReceiverRadio DetectorRadio Direction FinderRadio Frequency Measurement ApparatusRadio Frequency OscillatorRadio LatinoRadio Power SupplyRadio ReceiverRadio Relay KeyRadio Remote Control UnitRadio Surge ProtectorRadio TransmitterRadio Transmitter-ReceiverRadio Tuning DeviceRadiographRadiosondeRain CollectorRain GaugeRange CompensatorRange ModulatorRangefinderRecordRecorderRecordingRecording DeviceRecording HygrometerRecording PaperRecording ThermometerRecordsRectifierReedReflecting CircleReflecting DishReflecting GalvanometerReflectometerReflectorRefractometerRegulatorRelayRemote ControlRepeaterRepeater TelegraphResistanceResistance BoxResistance Bridge BoxResistance CoilResistance SpoolsResistance StandardResistance coil blockResistorResnatronResonance BoxResonatorResonator and BellRetardation CoilReticuleRetortRetort StandRheostatRifleRing StandRockRocketRodRod and Frame ApparatusRoller BearingsRosinRotatorRuleRule-FoldingRulerSIMM Memory UnitsSabine Sound ApparatusSandSand GlassSavart's WheelScaleScale (Ruler)ScalerScintillatorScioptic BallScreenSculptureSealsSecohmmeterSectorSetting CircleSextantShakerShockerShomescopeShovelShuntShutterSieveSightSignSignal GeneratorSilkSilverSinging FlameSinical QuadrantSiphonSirenSizing BoxSlide BoxSlide CaseSlide MounterSlide PlatesSlide ProjectorSlide RuleSlide Rule and SundialSlidesSlitSnow GaugeSocketSolenoid CoilSonarSonometerSorptometerSound AnalyzerSound ApparatusSound PendulumSound Receiever PlateSound TransmitterSound level meterSounderSpangled tubeSpark CoilSpark DeviceSpark GapSpeakerSpecific Gravity BalanceSpectaclesSpectraSpectrographSpectrograph PlatesSpectroheliometerSpectrometerSpectrometer PartSpectrophotelometerSpectrophotometerSpectroscopeSphereSpherical Geometry AidSpherometerSphygmomanometerSpinthariscopeSpirometerSpoonSpotlightSpringSprinkler HeadSquadra MobileSquareStadia RodStandStandard CellStandard measureStandard resistanceStar Counting MachineSteam ApparatusSteam BoilerSteam Engine IndicatorSteam Engine ModelStereo Slope ComparatorStereographic ImageStereographic ProjectionStereoscopeStereoscope and Stereo SlidesStereoscopic ViewerStereotactic radiosurgery treatment apparatusStereotopeStethoscopeStillStimulatorStop ClockStopperStorageStorage BatteryStorage BoxStorage CabinetStorage RackStorm GlassStoveStrength Evaluation ApparatusString GalvanometerStrip Chart RecorderStroboscopeSundialSunshine recorderSupportSurface Tension ApparatusSurgical HeadlampSurvey MarkSurveying ChainSurveying Chain PinsSurveying EquipmentSurveying StakesSurveying TapeSurveyor's CircleSurveyor's CompassSurveyor's CompendiumSurveyor's CrossSurveyor's LevelSurveyor's QuadrantSurveyor's TapeSurveyor's TransitSuspension StripSweep DriveSwitchSwitchboardSwivelSyringeSystem UnitT-SquareTableTachistoscopeTagsTambourTangent GalvanometerTape DeckTape MeasurerTape ReaderTape ReelTasimeterTeaching ToolTelegraphTelegraph CableTelegraph EquipmentTelegraph KeyTelegraph ReceiverTelegraph RecorderTelegraph RelayTelegraph TransmitterTelemeterTelephoneTelephone EquipmentTelephone ReceiverTelescopeTelescope AccessoryTelescope FocuserTelescope MountTelescope ObjectiveTelescope PartTelestereoscopeTelevisionTelevision ReceiverTellurianTelluriumTemperatureTemperature RecorderTensile Strength InstrumentTensiometerTensometerTerminal BlockTerrellaTest EquipmenmtTest EquipmentTest TubeTest Tube RackTextileTheodoliteThermo-HygrographThermocoupleThermographThermometerThermometer CaseThermometer and BarometerThermopileThermoscopeThermostatic ChamberThunder HouseTime Bomb MechanismTime Sense ApparatusTime Signal ReceiverTimeline of Balloon AscensionTimerTone ArmTone VariatorTongsTonometerToolTopToyTracing PaperTrade cardTransceiverTranscriberTransducerTransformerTransitTransmitterTransparenciesTree-Ring Measuring MachineTriangleTriodeTripodTripod StandTroughTubeTube HolderTube SensitometerTubingTunerTuning CoilTuning ForkTuning Fork StandTuning Fork with Resonance BoxTuning ForksTuning PegTuning fork on resonance boxTurntableTweezersTypewriterUltrasonic Bath Controller (w/ metal bath)Ultraviolet Light SourceUnderwater Sound ApparatusUniversal JointUnknownUpward Pressure ApparatusVacuum BottleVacuum DistillerVacuum FlaskVacuum JarVacuum ManometerVacuum PumpVacuum TubeVacuum Tube MountingVacuum Tube TesterValveVariable Resistance ApparatusVariation CompassVariometerVaseVesselViscometerVisual ApparatusVoice KeyVolt BoxVolta PistolVoltage DividerVoltage RegulatorVoltaic CellVoltaic PileVoltmeterVoltmeter/ammeterVolume IndicatorVolume StandardWashersWatchWatchmaker's ToolWater PumpWater SamplerWaterfall IllusionWattmeterWave MeterWave ModelWave demonstration deviceWaxWeather Station Sensor and EncoderWeather VaneWeatherstation RecorderWeightWeightsWeights and PulleysWelder's glassWheatstone ApparatusWheatstone BridgeWhetstoneWhirling TableWhistleWhistlesWind ChestWind RecorderWind VaneWinding KeyWindmillWindowWireWoodWorkshop ToolWrenchX-Ray Diffraction CameraX-Ray EquipmentX-ray MachineX-ray PartsX-ray ScreensX-ray TubeXylophoneYard ruleZoetropeZoetrope Animation StripZone PlatepH Meter

Artist / Maker / Culture

Description

Function

Object Number

Terms (Materials, Subjects, and Geographic Names)LoadSearch within current Thesaurus

On Public View in Gallery

Clear

Advanced Search

1 to 11 of 11 for

• Terms: Cambridge

• Classification / Category: Amplifier  

/ 1

GE type 1231-B amplifier and null detector

General Radio Company

circa 1948

GR type 1206-B unit amplifier and type 1203-A unit power supply

General Radio Company

1955-1965

GR type 1206-B unit amplifier and type 1203-A unit power supply

General Radio Company

1955-1965

GR type 1206-B unit amplifier and type 1203-A unit power supply

General Radio Company

1955-1965

linear amplifier, model 218

Atomic Instrument Company

1947-1956

Clapp-Eastham HZ 2-tube audio frequency amplifier

Clapp-Eastham Company

1922

GR type 400 power amplifier and plate supply

General Radio Company

circa 1930

GR type 514-A amplifier

General Radio Company

1931

3 stage audio amplifier

General Radio Company

GR type 514 bridge amplifier

General Radio Company

circa 1930

demonstration amplifier

Cruft Laboratory, Harvard University

1920-1930

/ 1