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571: Difference between revisions
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(New page: * [http://w140.com/tek_571.pdf Tektronix 571 Manual (PDF)]) |
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The 571 is a curve tracer. It can show the characteristic curves of PNP and NPN bipolar transistors, both N- and P-channel FETs, diodes (including Zener types), and SCRs. It is a microprocessor-controlled device, and user interaction is done through navigation keys. A typical sweep run takes about five seconds. It has a parallel printer output that can print graphics on Epson-protocol dot-matrix printers. | |||
One nice feature of the 571 is its ability to store a set of ''reference'' curves, which are displayed as a background for the current curves being traced. This makes comparison and matching of devices easy. | |||
The 571 has a well-designed field of parallel-connected sockets to accommodate many different semiconductor package types. Details can be seen in the photographs below. | |||
Because the nature of electronic component testing involves exposing components to sometimes hazardous voltages and operating conditions, at certain settings the 571 will refuse to start a measurement cycle until the user lowers the built-in hinged plastic shield over the socket area. This is to protect the user from both high voltage and high-velocity flying debris in the event of a catastrophic component failure during a test run. The shield is made of a thick high-impact plastic, and the 571 has an internal microswitch so its firmware knows if the shield is in the up or down position. | |||
* [http://w140.com/tek_571.pdf Tektronix 571 Manual (PDF)] | * [http://w140.com/tek_571.pdf Tektronix 571 Manual (PDF)] | ||
<gallery> | |||
Image:Tek571_34_view.jpg|571, front 3/4 view | |||
Image:Tek571_rear.jpg|571, rear view | |||
Image:Tek571_head_shield_up.jpg|571, measurement head, shield up | |||
Image:Tek571_head_shield_down.jpg|571, measurement head, shield down | |||
Image:Tek571_params.jpg|571, parameters screen | |||
Image:Tek571_run_2N2222A.jpg|571, run of a 2N2222A transistor | |||
</gallery> | |||