Specification; Electrical Characteristics - Tektronix 176 Instruction Manual

176
SECTION 1
SPECIFICA TION
The 176 Pulsed High-Current Fixture extends the testing
capability of the Type 576 Curve Tracer by providing a
pulsed collector supply output of up to 200 A peak and a
pu Ised step generator output of up to 20 A peak. To
accomodate this increased range, the maximum peak power
output has been increased to 1000 watts and the maximum
vertical deflection factor has been increased to 20
A/division.
The 176 slides into the Type 576 in place of the
Standard Test Fixture. A set of 5 accessories jacks is avail-
able, which accepts most Tektronix device testing acces-
sories. Kelvin sensing of collector voltage may be used for
all tests. An interlock system is used, which allows tests to
be made only when a protective box is in place over the
device under test, thus protecting users from dangerous
voltages. For remote tests, this interlock system may be
overridden by a front panel button.
The following electrical and environmental charac-
teristics are valid for a 176 operated in a calibrated Type
576, both instruments operated in an ambient temperature
of between O°C and +50°C.
The electrical characteristics are listed in two catagories,
performance requirements and supplementary information.
The Performance Check and Adjust section provides a pro-
cedure for checking the characteristics listed in the
performance requirement category. The characteristics
listed in the supplementary information category are pro-
vided for the convenience of the user. A performance check
procedure for the Type 576 is available in the Type 576
I nstruction Manual.
TABLE 1-1
ELECTRICAL CHARACTERISTICS
Collector Supply
Characteristic Performance Requirement Supplementary Information
Form of Output 300 f./S wide pu Ises. (80 f./S wide pu Ises
also available but performance not
specified .)
Repetition Rate Power Line frequency
Polarity
Positive-going or negative-going as
determined by Type 576 POLARITY
switch.
Amplitude
Ranges 15, 75 and 350 volts nominal, as deter-
mined by Type 576 MAX PEAK VOLTS
switch.
Peak Voltage
Peak open circuit voltages within +35%
and -5% of Type 576 MAX PEAK
VOL TS switch setting for 75 and 350
positions; within +18% and -12% on
15 positions. All at nominal line voltage.
REV JAN 1982
1-1