B&K Precision Model 501A Transistor Curve Tracer – Inspection Report
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| Item Condition | Item is sold AS-IS and WHERE-IS. The unit has not been fully tested. Please purchase with this understanding—no returns or warranties offered. Buyers are welcome to arrange an in-person inspection and testing before purchase. |
| Functionality | Please contact us with any specific functionality questions, and we will do our best to answer based on the information available to us. We highly recommend that buyers bring their own testing equipment and perform any necessary evaluations during an in-person inspection. This ensures you can verify compatibility and condition prior to purchase. |
| Cosmetic Rating | Good –  Moderate signs of use; some scratches or scuffs, light fading, but overall decent visual condition. |
| Accessories / Parts / Software | If an item isn’t shown in the pictures, it’s not included. Feel free to ask any questions! |
| Additional Notes | tested working |
Sale!
B&K Precision Model 501A Transistor Curve Tracer EMH261
$395.00 $296.25
BK Precision Model 501A – Transistor Curve Tracer for Visual Semiconductor Analysis
The BK Precision 501A is a compact, bench-top curve tracer designed to analyze the dynamic characteristics of semiconductor devices. It provides a visual representation of voltage-current relationships, making it ideal for testing and comparing transistors, diodes, and other solid-state components.
⚙️ Key Features:
- Oscilloscope-Based Display: Connects to any standard oscilloscope to display characteristic curves
- Device Compatibility: Supports NPN/PNP transistors, diodes, FETs, SCRs, and other two-lead or three-lead devices
- Selectable Test Parameters: Adjustable base current and collector voltage for customized analysis
- Quick Fault Detection: Easily identifies open, shorted, or leaky junctions
- Socketed Test Fixture: Built-in sockets for TO-92, TO-220, and other common packages
🧰 Applications:
- Educational labs for semiconductor theory
- Repair and troubleshooting of analog circuits
- Comparative testing of matched pairs or suspect components
- Ideal for hobbyists, technicians, and engineers working with discrete semiconductors
📐 Technical Highlights:
- Collector supply voltage: Up to 30V
- Base current steps: Multiple selectable ranges
- Compatible with oscilloscopes via standard BNC output
The BK Precision 501A is a reliable tool for visualizing semiconductor behavior, especially useful when datasheets aren’t enough or when quick, intuitive diagnostics are needed.
Would you like help integrating this into a test bench setup or comparing it to digital curve tracers like the Huntron Tracker series?
Discover related products & see them in action on our YouTube channel
Additional information
| Weight | 10 lbs |
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| Dimensions | 12 × 10 × 16 in |
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