Tektronix 577 Transistor Curve Tracer

The Tektronix 577 Transistor Curve Tracer system is a dynamic component tester that permits display of characteristic curves of many types of devices. These devices including bipolar transistors, field effect transistors, silicon-controlled rectifiers, uni-junction transistors, integrated circuits, light coupled devices, capacitors, and relays. The Tektronix 577 Transistor Curve Tracer features split-screen storage, 6.5-inch CRT, variable stored brightness, and a beam finder. A collector supply variable from 0 to 1600 volts in several operating modes, including AC.

The Tektronix 577 Transistor Curve Tracer's available current varies from 10 A (20 A pulsed) on the lowest voltage range to 40 mA (80 mA pulsed) on the highest voltage range. The collector supply power is set using a switch that changes series resistance to maintain the same peak power setting as the voltage range is changed. The collector supply is automatically disabled when the vertical display exceeds 2.5 screen dimensions, helping to protect the Tektronix 577 under test from destructive currents.

Product Info

Control	Settings
Collector Sweep Polarity	+ (NPN) or - (PNP) depending on the transistor type
Variable Collector %	100
Max Peak Volts	6.5
Max Peak Power Watts	Set to a safe level
Number of Steps	10
Step/Offset Amp	Current Steps (MA)
STEP X.1	Pushed in
Pulsed	300 MS button pushed in when using high power levels

Operates within two ranges of nominal line voltage: 100 V, 110 V, 120 V, or 200 V, 220 V, 240 V
Provides continuously variable flood-gun current duty cycle from about 10% to 100% (when the collector sweep is turned down or disabled), permitting extended retention of displayed information

Measure the basic parameters of a wide variety of devices
Includes a table of basic control settings required to make the test accurately, without damaging the device under test
A diagram of connections to the test fixture and a photograph of a typical characteristic are provided