Power Supply; Environmental Characteristics; Mechanical Characteristics; Standard Accessories - Tektronix 1S1 Instruction Manual

Triggering Source
Internal from trigger takeoff at input of vertical channel,
or external from front-panel 50-ohm EXT TRIG input con-
nector. Both triggering sources are disconnected in FREE
RUN position of the TRIGGER SOURCE switch.
Input Impedance
Nominally 50 ohms at EXT TRIG connector.
Trigger Coupling
AC-coupled from both internal and external sources.
Trigger Slope
Positive-going (+) or
internal or external triggering source as selected by the
TRIGGER SOURCE switch.
Sine-Wave Triggering Requirements
Frequency—100 kc or less to 1 Gc or more.
Amplitude—50mv or less to 2 volts peak to peak (at
SIGNAL IN connector) for internal triggering; 8 mv or less
to 200 mv peak to peak (at EXT TRIG connector) for external
triggering.
Fast-Rise Triggering Requirements
Repetition Rate - Approximately 10 cps to 1 Gc. Below
50 cps the display may be limited by memory drift.
Amplitude— ±40 mv to ±2 volts (at SIGNAL IN con-
nector for internal triggering; ±7 mv to ±200 mv (at EXT
TRIG connector) for external triggering.
Maximum External Triggering Voltage
Allowable accidental short-time overload of ±2 volts.
Trigger Recovery Time
11.5 µsec ±1.5µsec on 50nS or 500nS time position
1
range.
23.5µsec ±3.5µsec on 5µS time position range.
205 µsec ±25µsec on 50 µS time position range.
2.05 msec ±0.25msec on 50 µS time position range.
These values apply only when the RECOVERY TIME con-
trol is set to minimum position (fully counterclockwise but
not at SYNC). The trigger recovery time is increased by
turning the RECOVERY TIME control clockwise.
Triggering Jitter (Low-Amplitude)
200 psec or less on a 2-nsec duration pulse of 40-mv ampli-
tude for internal triggering or 7-mv amplitude for external
1
triggering.
200 psec or less on a 1-Gc sine-wave of 50-mv amplitude
for internal triggering or 8mv amplitude for external trigger-
1
ing.
negative-going (-) from
1
1
1
1
5 nsec or less on a 10-Mc sine wave of 50-mv amplitude
for internal triggering or 8-mv amplitude for external trigger-
1
ing.
0.7 µsec or less on a 100-kc sine wave of 50-mv ampli-
tude for internal triggering.
0.5 µsec or less on a 100-kc sine wave of 4-mv ampli-
tude for external triggering.
Amplitude for internal triggering is that at the SIGNAL
IN connector; amplitude for external triggering is that at the
EXT TRIG connector.
External Trigger Kickout
25 mv or less at the EXT TRIG connector with the TRIGGER
SOURCE switch at ±EXT.
either
Regulated Voltages
Regulated supplies provide -19-volt and +19-volt outputs
for stable operation of the sampling circuits.
Probe Power
1
Power provided through front-panel connector for opera-
tion of cathode-follower probe. Filament voltage is approxi-
mately -12.6 volts (terminal B) when loaded and plate
voltage is approximately +100 volts (terminal D).

ENVIRONMENTAL CHARACTERISTICS

Temperature
Operating - 0° C to +50° C.
Non-operating - -40° C to +65° C.
Altitude
Operating-15,000 feet maximum.
Non-Operating-50,000 feet maximum.

MECHANICAL CHARACTERISTICS

Ventilation
Forced filtered air is provided by the display oscilloscope.
Construction
Aluminum-alloy chassis frame and anodized front panel.
Epoxy-laminate etched-wiring boards.
Dimensions
Height-7 inches; width-5

STANDARD ACCESSORIES

Information on accessories for use with this instrument is
included at the rear of the mechanical parts list.
1
Performance requirement checked at the factory.
Characteristics – Type 1S1
1
1
1

POWER SUPPLY

inches; depth-11½ inches.
1-3