Tektronix 177
TEKTRONIX 177 Test Fixture
Description
The Tektronix 177 Test Fixture Plug-in is used with the 577D1 and 577D2 Curve Tracers which are standard curve tracer systems that can make traditional dc parametric measurements.
The 577-177-D1 (storage) Curve Tracer system is a dynamic component tester that displays of characteristic curves of many devices such as bipolar transistors, field effect transistors, silicon controlled rectifiers, uni-junction transistors, MOSFETs, integrated circuits, light coupled devices, capacitors and relays.
The D1 display Unit features split-screen storage, 6½ - inch CRT, variable stored brightness and a beam finder.
177 Test Fixture STEP GEN terminal selector: Applies step generator output to the test fixture base connections
177 Test Fixture OPEN(OR EXT): Disconnects the test fixture base terminal from the step generator output and connects the base terminal to the front panel EXT BASE OR EMIT INPUT connector.
177 Test Fixture SHORT: Disconnects the test fixture base terminal from the step generator output and grounds the base terminal.
Key Points
Vertical deflection factors from 0.2 nA/DIV to 2 A/DIV.
Correct deflection factor is indicated by a black-lighted knob skirt.
The vertical system monitors collector current even on the most sensitive ranges, such that three-terminal measurements can be made on all ranges.
A mode switch that provides for grounded base or grounded emitter operation, and includes a mode for emitter-base breakdown or leakage.
A bias supply that is adjustable from -12 V to +12 V.
Looping compensation that permits comparison of capacitance values down to 1 pF.
Interlocking switch for the collector supply with which the higher voltage ranges are disabled until the protective cover is in place over the device under test or a momentary contact interlock defeat button is pressed.
“Device under test” connectors that accept a wide range of adapters, including those with Kelvin connections for high current measurements.
Specifications
Source voltage: 100V, 110V, 120V or 200V, 220V, 240V
