Pay shipping in the USA and just enough more to make it worthwhile to keep these out of the land fill. I have 3 or 4 of these.
B&K Precision semiconductor curve tracer model 501A. This unit can be used to determine the health of almost any low power diode, transistor, or FET. It is designed to connect to the vertical and horizontal inputs of an oscilloscope in X/Y mode and displays a family of 6 curves for steps in input current or voltage (X), while monitoring output current (Y). Input steps of 1 uA to 2 mA; 50 mV to
1 V. Test voltage of 0 to 100 V. Output sensitivity of 1 to 10 mA/div. Dual sockets as well as bananna jacks for DUTs; Bananna jacks for scope connections. These were university EE lab units and are, shall we say, somewhat beat up. (Broken in! Nothing a new paint job wouldn't cure though.) Instruction manuals are available from various sources. As-is, untested, anything should be repairable. Else, out they go.-- sam | Sci.Electronics.Repair FAQ:
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