Tektronix - 511A - Oscilloscope
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Equipment:
511A
Date:
1950
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Information
GENERAL DESCRIPTION
The Tektronix Type 511-A Cathode Ray Oscilloscope 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 511-AD Oscilloscope is identical to the Type 511-A
except that it includes a factory installed Type 1-AD-25
Delay Network, which is described in Section VII of this manual.
CHARACTERISTICS
Signal observable
1. Sine waves from 10 cycles to 10 me.
2. Pulses of. 1 microsecond to 1 /50 sec.
Sweep Circuit Hard tube type, either triggered or recurrent
as desired.
Sweep Speeds Continuously variable from .01 sec. per cm to
.1 microsecond per cm.
Trigger Requirements
.5 to 50 V (Peak) sine wave or pulse of either polarity.
Pulse as short as .05 microsecond will trigger
satisfactorily. A 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 Any 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 100 K potentiometer and sweep amplifier.
Maximum deflection sensitivity 1.5 V per cm DC or peak to
peak AC. 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 Attenuator
Frequency compensated RC type with attenuation ratios of 2,
4, and 8.
Vertical Deflection Sensitivity Without amplifier 27 V per
cm maximum, 200 V per cm minimum, DC or peak to peak AC.
1 Stage, 2.7 V per cm maximum, 40 V per cm minimum.
2 Stages, .27 V per cm maximum, 4 V per cm minimum.
(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 Amplifier Bandwidth
1 stage, down 3 db (Max) (from 1 me response) at 5 cps and
10 me.
2 stages, down 3 db (Max) (from 1 me response) at 5 cps and
8 me.
Vertical Amplifier 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. Accuracy for line voltage of 117 v.
is ±5% of full scale. May be measured with external meter
when greater accuracy is required. A position on the SIGNAL
CALIBRATE 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 duration as sweep.
Connection to CRT Cathode
via .1 mfd capacitor. RC=.012 sec.
Accelerating 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. 15Vi" high, 12Vz" wide, 21V2" deep.
Finish. Panel, photo etched aluminum with black letters.
Cabinet, gray wrinkle.
1 Manual
Service and user manual
Manual type:
Service and user manual
Pages:
73
Size:
10.8 MB
Language:
english
Revision:
Manual-ID:
Date:
January 1950
Quality:
Scanned document, all readable.
Upload date:
April 23, 2017
MD5:
9629530f-b5de-aff8-c44e-533fe74d3d81
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1026