Quick video on how to identify unknown transistors using a curve tracer. This video focuses on “hfe” AC Beta or AC Current gain, which is a dynamic current gain measurement.
This Video explains how I repaired this Husky Pro compressor. I also modified the cooling system, and gave it a status box with LED indicators. Really handy to see if I have the breaker on or off for the garage.
Here is a Tip many people overlook when servicing circuit boards. You will be surprised how obvious this problem is. The question is, why do the manufacturers keep doing this?
Short video showing how to test relays with a modified oscilloscope. Identify contact bounce, burned contacts, contact resistance, sticking relays, and faulty internal structure.
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This Video looks at some of the more common transistors, and shows you how to test them easily with the “diode test function” of your DMM. The transistor in the intro picture isn’t so common, but it was kind of photogenic.
Trying the TDR ( Time Domain Reflectometer ) with different oscilloscopes. First, the old Tektronix 547 shows it’s stuff, then the TDS220 oscilloscope, soon after.
Find out how to determine the Impedance of your “random pieces” of coaxial cable.
Also see what shorts, opens, and barrel connectors look like on the oscilloscope with this TDR.
This Video explains how to find the Distance To Fault in or DTF, using a Time Domain Reflectometer or “TDR.” Use this to locate problems with your coax cable.
Some simple math to determine “VF” or Velocity Factor of coaxial cable using an oscilloscope, TDR, and measuring tape.