Tektronix 511A Instruction Manual page 7

SECTION I
GENERAL DESCRIP ION
The Tektronix Type 511-
scope is a wide range, portable instrument, making
possible the observation of a wide variety of electrical
waveshapes. It is primarily intended for laboratory and
shop use, in the development and testing of all types of
electronic equipment.
The Type 51 1- D Oscilloscope is identical to the Type
511- except that it includes a factory installed Type
l- D-25 Delay Network, which is described in Section
VII of this manual.
CHARAC ERIS ICS
Signal observable
1. Sine waves from 10 cycles to 10 m c .
2. Pulses of . 1 microsecond to 1 /50 sec.
Sweep Circuit
Hard tube type, either triggered or recurrent as de ­
sired.
Sweep Speeds
Continuously variable from .01 sec. per cm to .1 micro ­
second per cm.
Trigger Requirements
.5 to 50 V (Peak) sine wave or pulse of either polarity.
Pulse as short as .05 microsecond will trigger satis ­
factorily. key connected between TRIGGER INPUT
and GND. is suitable for triggering single sweeps.
Sweep Lag
CRT is unblanked and sweep is operating linearly in
less than .1 microsecond after receipt of an infinitely
sharp trigger pulse.
Sweep Magnification
ny desired 20% of the sweep can be spread over the
entire trace except for sweep speeds faster than .5
microsecond per cm.
External Sweep Input
DC coupled via 1 00 K potentiometer and sweep am ­
plifier.
Maximum deflection sensitivity 1.5 V per cm DC or
peak to peak C. Band width, DC to 800 kc (3 db
down at 800 kc).
Vertical Deflection Circuit
Switch permits signal input connector on panel to be
connected to deflection plates directly, via capacitor
(RC=.l sec), via 1 amplifier stage, or via 2 amplifier
stages.
Input ttenuator
Frequency compensated RC type with attenuation
ratios of 2, 4, and 8.
Cathode Ray Oscillo ­
SECTION 1, P GE 1
Vertical Deflection Sensitivity
Without amplifier 27 V per cm maximum, 200 V per
cm minimum, DC or peak to peak C.
1 Stage, 2.7 V per cm maximum, 40 V per cm mini ­
mum.
2 Stages, .27 V per cm maximum, 4 V per cm mini ­
mum.
(Sensitivity is reduced by a factor of 10 when probe
is used.)
In no case should the combined AC and DC input
voltages exceed 600 V peak.
Input Impedance
1 meg shunted by 40 mmfd (±5%) for any setting of
the input selector and input attenuator.
With probe, 10 megohms shunted by 14 mmfd.
Vertical mplifier Bandwidth
1 stage, down 3 db (Max) (from 1 mc response) at 5
cps and 10 m c .
2 stages, down 3 db (Max) (from 1 mc response) at 5
cps and 8 m c .
Vertical mplifier Transient Response
Rise time, 1 stage .04 miarosecond (10% to 90%)
2 stages .05 microsecond (10% to 90%)
Calibrating Voltage
Sine wave of power line frequency. Three ranges
0-1, 0-10, 0-100 v. peak to peak.
voltage of 117 v. is ±5% of full scale. May be meas ­
ured with external meter when greater accuracy is
required. position on the SIGN L C LIBR TE
switch allows the use of an external calibrating source
when desired.
Waveforms available externally.
Sweep sawtooth, 20 volts peak.
Positive and negative gate, 40 V. peak, same dura ­
tion as sweep.
Connection to CRT Cathode
via .1 mfd capacitor. RC=. 0 12 sec.
ccelerating voltage on cathode ray tube, 3 KV.
Power Requirements. 105-125 volts, or 210-250 volts,
50-60 cycles, 230 watts. (See Section IV.)
Weight. 50 pounds.
Dimensions. 15½" high, 12½" wide, 21 ½" deep.
Finish. Panel, photo etched aluminum with black letters.
Cabinet, gray wrinkle.
FUNC IONS OF CON ROLS AND
BINDING POS S
brief explanation of the function of each control and
binding post is given below. For a more detailed expla ­
nation consult Section III, Circuit Description.
ccuracy for line
TYPE 511- , 51 1- D