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£218.53 (£262.24 with VAT) Add to Cart

TEKTRONIX 7904 OSCILLOSCOPE Channels 2, 500MHz - 699 MHz, Digital

TEKTRONIX 7904 OSCILLOSCOPE Channels 2, 500MHz - 699 MHz, Digital

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Condition: Used

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  • Description
USED Oscilloscope SpecificationsVERTICAL SYSTEMChannelsTwo left-hand plug-in compartments; compatible with all 7000 Series Plug-Ins. Bandwidth determined by mainframe and plug-in unit.Modes of OperationLEFT, ALT, ADD, CHOP, RIGHTChopped ModeRepetition rate is approx. 1 MHz.Trace Separation Range (Dual-sweep Modes)The B trace can be positioned 4 divisions above or below the A traceDelay LinePermits viewing leading edge of displayed waveform when using 7B80 and 7B90 Series Time Bases. 7B50 Series not recommended.HORIZONTAL SYSTEMSingle ChannelTwo right-hand plug-in compartments; compatible with time bases of the 7B80 and 7B90 Series. 7000 Series Vertical Amplifiers and specialized plug-ins may also be used.Fastest Calibrated Sweep Rate500 ps/div with the 7B92A.Chopped ModeRepetition rate is approx. 200 kHzX-Y ModePhase shift is within 2° from dc to 35 kHz without phase correction (dc to 1 MHz with phase correction, Option 02) between vertical and horizontal channels. Bandwidth is dc to at least 1 MHz.CRT AND DISPLAY FEATURESStandardInternal 8 X 10 cm graticule with variable illumination. Accelerating potential is 24 kV with P31 Phosphor standard.Option 01, without CRT readoutNo CRT readoutOption 04, Max Brightness CRT With Reduced AreaInternal 4 X 5 cm graticule with variable illumination. Accelerating potential is 24 kV. P11 Phosphor provides max writing rate. This provides extremely high photographic and information writing speed and increases the visibility of low-rep-rate, high-speed signals.Option 78, P11 PhosphorMinimum Photographic Writing Speed Using the Optional P11 and Polaroid 3000 ASA Film without Film FoggingPolaroid FilmRelative Writing SpeedASATypesWithout FoggingWith Fogging3000107 084 471 (reference)31000041024In typical applications, P31 Phosphor has approximately one-half the writing speed of P11 Phosphor. The writing speed can be increased by using controlled film fogging with a writing speed enhancer (camera accessory) or by using Polaroid 10,000 ASA film or both. The following table lists the approximate relative writing speed gains that can be achieved using these techniques.Polaroid FilmRelative Writing SpeedASATypesWithout FoggingWith Fogging3000107 084 471 (reference)31000041024AutofocusReduces the need for additional manual focusing with changes in intensity after focus control has been set.Beam FinderLimits display within graticule areaExternal Z-Axis Input2 V p-p for full intensity range. A positive signal blanks the trace. Max input voltage is 15 V (dc + peak ac) and p-p ac. Input is dc coupled.CALIBRATOROutput WaveshapeRectangular positive-going from ground, 1 kHz (± 0.25%), dc or B Gate/2Voltage Ranges4 mV, 40 mV, 0.4 V, 4 V, 40 V into an open circuit; 2 mV, 20 mV, 0.2 V, 0.4 V into 50 W (± 1%).Current Output40 mA dc or 1 kHzOUTPUTS/INPUTS+SawtoothSawtooth starts 1 V or less from ground (into 1 MΩ). Internally selectable from A or B horizontal. Output voltage is 50 mV/div (± 5%) into 50 Ω, 1 V/div (± 10%) into 1 MΩ. Output R is approx. 950 Ω.+GatePositive-going rectangular waveform derived from A, B or Delayed Gate, internally selectable. Output voltage is 0.5 V (± 10%) into 50 Ω, 10 V (± 10%) into 1 MΩ. Rise time is 5 ns or less into 50 Ω, output R is approx. 950 Ω.Sig OutSelected by B TRIGGER SOURCE switch. Output voltage is 25 mV.div into 50 Ω, 0.5 V/div into 1 MΩ. Bandwidth depends upon vertical plug-in. See the Vertical System Specifications Chart.Output R is approx. 950 Ω.Camera PowerThree-prong connector to the left of the crt provides power, ground, and remote single-sweep reset access for the C-50 Series Cameras.Probe PowerTwo rear-panel connectors provide correct operating voltages for two active probes.POWER REQUIREMENTSLine voltage ranges, 90 to 132 V ac and 180 to 264 V ac. Line frequency, 48 to 440 Hz. Max power consumption, 160 W, 2 A at 115 V line, 60 Hz.Dimensions 59.2 cm X 30.5 cm X 34.3 cm (L X W X H)Weightapprox. 32 lb (14.5 kg)
... [Full Description]

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