60MHz DUAL TRACE OSCILLOSCOPE WITH DELAYED SWEEP   Model 3934

Features


  • DC - 60 MHz Bandwidth
  • 2mV/division Sensitivity
  • Sweeps to 5nS/division
  • 23 Calibrated Ranges - Main Time Base
  • 22 Calibrated Ranges - Delayed Time base
  • Calibrated Delay Time Multiplier
  • Alternate Sweep
  • Signal Selay Line
  • Alternate Trigger
  • Variable Hold-off
  • Beam Find
  • 14KV Accelerating Voltage
  • 150mm Rectangular CRT with Internal Graticule
  • TTL level Z Modulation

Technical Specifications
VERTICAL DEFLECTION
VERTICAL AMPLIFIERS (CH1 & CH2)
Sensitivity 2mV/div to 5V/div.
Attenuator Vernier Control Provides fully adjustable sensitivity between steps, adjustment range 1/1 to 1/2.5.
Accuracy 3%.
Input Resistance 1M ohm 2%.
Input Capacitance 22pF 10%.
Frequency Response DC : DC to 60MHz (-3dB)
AC : 10Hz to 60MHz (-3dB)
DC : DC to 40MHz (-3dB) on 2mV
AC : 10Hz to 40MHz (-3dB) on 2mV.
Rise Time 5.8nS or less, 8.7nS or less on 2mV.
Signal Delay Time At least 20nS visible delay.
Polarity Reversal CH-2 invert.
Square wave Characteristic Overshoot within 4%.
Maximum Input Voltage 400V (DC + AC Peak).
Operating Modes CH1, CH2, CH1 & CH2 ALT, CH1 & CH2 CHOP (ALT or CHOP selectable at any sweep rate), Algebraic ADD and Algebraic Subtract.
CHOP Frequency 500KHz per channel approx 40%.
SWEEP SYSTEM
Operating Modes A : A Sweep
A-INTEN : A Sweep intensified for duration of B sweep.
B : Delayed B sweep.
A&B ALT : A sweep intensified for duration of B sweep & B sweep alternating.
X-Y : X-Y operation (X deflection by CH-1 & Y deflection by CH-2).
Sweep Mode Auto, Normal, Single.
Sweep Time 50nS/div to 1Sec/div,
(5nS/div to 100mS/div at x10 MAG.)
23 steps in 1-2-5 sequence, vernier control provides fully adjustable sweep time between steps, adjustment range 1/1 to 1/2.5.
Accuracy 3%.
Hold-off Time Continuously variable.
B TIME BASE
Delay Method Continuous delay, triggered delay.
Sweep Time 50nS/div to 0.5S/div, (5nS/div to 50mS/div at x10 MAG)
20 steps in 1,2,5 sequence.
Accuracy 3%.
Delay Time Continuous variable 10 turn calibrated vernier.
Delay Jitter 1:20,000, of full scale sweep time.
Sweep Magnification x10 4%.
Linearity 2%, 4% at x10 MAG.
Uncal Indication LED lights when A time base variable is not set to CAL.
TRIGGERING
A Trigger  
Source INT, MAINS, EXT, EXT/10, INT permits selection of CH1, CH2 or vertical mode by selecting CH1 & CH2.
Sensitivity DC to 10MHz : 0.5 div internal, 25mV ext.
10MHz to 100MHz : 2.0 div internal, 0.2V ext.
Coupling AC, AC-LF, AC (HF) DC.
AC attenuates input below 10Hz, AC-LF attenuates input above 1MHz.
AC (HF) allows high frequency components also for stable display from high frequency component.
Slope + or - .
B Trigger  
Source INT.
Sensitivity 10Hz - 10MHz : 0.5div
upto 100MHz : 2.0div.
Coupling AC.
Slope + or - .
HORIZONTAL DEFLECTION
HORIZONTAL AMPLIFIER
X-Y Mode X-axis : CH1.
Y-axis : CH2.
Sensitivity 2mV/div to 5V/div.
Accuracy 3%.
Frequency Response DC to 3MHz (-3dB).
Phase Shift 3 at 150KHz.
CRT
Type 150mm rectangular with internal graticule.
Display Area 8 x 10 div (1 div = 1 cm).
Accelerating Voltage 14KV.
Phosphor P31.
Scale Illumination Continuously Variable.
Trace Rotation Front Panel Control, allows 5 of trace adjustment.
MISCELLANEOUS
Z-Axis (Intensity modulation) TTL level, intensity decreases with +ve going signal usable DC to 20MHz, Max. input 50V (DC + AC peak) or 50V (p-p) at 1KHz or less.
CAL/Probe Compensation 0.3V P-P 1% Square wave 1KHz 2%.
GENERAL INFORMATION
Power Requirement 180V - 270V AC, 50/60Hz, approx. 70VA.
Dimensions 165 (H) x 335 (W) x 500 (D) mm.
Weight 10 Kg. (approx).
Environmental  
Within specified accuracy +20C to 40C, 85% max relative humidity.
Full Operation 0 to 50C, 85% max. relative humidity.
Standard Accessories Instruction Manual, 2 Input BNC leads, Mains cord.
Optional Accessories High impedance switch probe with x1 or x10 Attenuation (Model 307), Light-Hood, Trolley.