Section 1—455/A2/B2
SPECIFICATIONS
The 455/A2/B2 is a 50 MHz, dual-channel, portable oscilloscope designed to operate in a wide range of environmental
conditions.
The dual-channel dc to 50 MHz A2 vertical deflection system provides calibrated deflection factors from 5 millivolts to
5 volts/division.
The B2 horizontal deflection system provides stable triggering over the full bandwidth capabilities of the vertical system.
Calibrated sweep rates are provided from 0.5 seconds to 0.05 microseconds/division along with delayed sweep features for
accurate relative-time measurements. A X10 magnifier extends the calibrated sweep rate to 5 nanoseconds/division.
Standard 455 oscilloscopes can be operated from nominal 116 volt or 232 volt, 48 to 440 Hz power lines. With Option 7, the
455 can be operated from 12 or 24 volt dc power sources (or the snap-on Tektronix 1106 Battery Pack). Option 7 Specifica
tions are located in the Options section of this manual.
The Electrical Characteristics are divided into two categories: Characteristics shown in the Performance Requirement column
are instrument specifications and can be verified by the Performance Check. Information in the Supplemental Information
column is provided for reference or clarification only.
The following instrument specifications apply over an ambient temperature range of — 15°C to +55°C unless otherwise indica
ted. The adjustment procedure in Section 6, when performed completely, allows the 455/A2/B2 to meet the electrical speci
fications listed below.
TABLE 1-1
Electrical (455 Main Module)
Characteristic
Performance Requirement Supplemental Information
CALIBRATOR
Output Voltage
0°C to +40° C
0.3 V within 1.0%. Within 0.3% at +25°C, within 3°C.
—15°C to +55°C
0.3 V within 1.5%.
Repetition Rate
Approximately 1 kHz.
Within 25%.
Output Resistance
Approximately 60 fi.
Z AXIS INPUT
Sensitivity
Noticeable modulation at normal
intensity with 0.5 V or more p-p signal.
Usable frequency Range
Dc to 20 MHz.
Input Resistance at DC
1.6 k fi.
Maximum Input Voltage
25 V (dc plus peak ac). 25 V p-p ac at
1 kHz or less.
SIGNAL OUTPUTS
CH 2 OUT
See Vertical Module Specifications.
REV. A, OCT 1975
1-1