Tektronix 371B, Service Manual

Page: 26 / 292

Specifications
1-4
371B Service Manual
Table 1-1: Collector ĂSupplyĂElectricalĂ Specification (Cont.)
Characteristic Supplemental Information Performance Requirement
Peak Power Watts Range 3 kW
300 W
30 W
3 W
300 mW
30 mW
Selected by the PEAK POWER WATTS
buttons, but 300 mW or 30 mW setting is
selected by the 30 W or 3 W button with the
SHIFT button.
Derived from nominal peak open circuit
collector voltage and nominal series
resistance value.
Collector Peak Current With a shorted load in the test fixture unit.
3 kW range 400 A Pulsed collector supply
300 W range 40 A Pulsed collector supply
30 W range 40 mA, -20 %, +20 % Sine wave collector supply
3 W/ 300 mW range 4 mA, -20 %, +20 % Sine wave collector supply
30 mW range 0.4 mA, -20 %, +20 % Sine wave collector supply
Maximum Peak Voltage Peak open circuit voltage At 100 % VARIABLE COLLECTOR SUPPLY.
3 kW range 30 V, +10 %, -5 % Pulsed collector supply
300 W range 30 V, +10 %, -5 % Pulsed collector supply
30 W range 3 kV, +10 %, -0 % Rectified sineĆwave collector supply
3 W range 3 kV, +10 %, -0 % Rectified sineĆwave collector supply
300 mW range 300 V, +15 %, -0 % Rectified sineĆwave collector supply
30 mW range 300 V, +15 %, -0 % Rectified sineĆwave collector supply
Variable Collector Supply 0 % to 100.0 % % of maximum peak voltage value is
displayed on the CRT readout area.
Provides uncalibrated variable control of
collector supply amplitude from 0 to 100 % in
0.1 % increments.
Looping Compensation Valid for High Voltage mode Cancels stray capacitance from collector
terminal and ground at Collector Peak Power
Watts 30 W/ 3 W and 300 mW/ 30 mW.
Range (Typical) Maximum 100 pF
Vertical Projection (Typical) 10 m A, -20 m A At open circuit connecting with Test Fixture
box at Collector Peak Power Watt 30 W.
Tan Delta (Typical)
Within 2.5 m A at 3 kV
Sweep Start Voltage Less than +10 %, -10 % of peak volt. Valid for High Voltage mode.
OUTPUTSIndicator Indicates all outputs (COLLECTOR SUPPLY,
STEP GENERATOR output terminal)
enabled/disabled mode.