Questions tagged [test]
A definitive procedure that produces a test result.
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How do I establish if an op-amp is bad?
I have a JRC2374 SOIC8 IC on my board which is not powering up. The IC seems to be involved in the power regulation switching operation. Here are the internals from the datasheet:
I know little ...
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LM4562 test not working
I got some LM4562 op-amps a few months ago and finally had time to test my audio project, and I realized that this schematic based on some others on the network is not working.
I tried to listen to ...
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Capacitor decade box
I'm assembling a capacitor decade box. It will be used to tune circuits both in power & high frequency electronics (but, probably not GHz RF; with all the parasitics).
So, I need it to be as low ...
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How would I test forward voltage?
I tried to test an LED but my multimeter only displays 0L. Does anybody know what to do if it doesn’t have a select button?
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Why I am having x as output from ReLU?
I am trying to test ReLU, but it always gives 'x' for the output.
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RF test socket pin max power handling capability
Do RF test socket pins have a max RF test power handling capability specification?
Most RF pins that these sockets touch do have this specification. However, I don't see it listed for socket pins. ...
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Where can I find information about "Enhanced Policies and Procedures Exam" for IPC?
I'm taking the CSE test for IPC-J-STD-001 and at chapter 7.Certification Exam Overview, I can see that there are 3 types of tests.
Policy and procedure test (10 questions)
Closed book test (25 ...
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CPU test pins (test as a noun)
Looking at the FM2 socket for AMD processors I've noticed that there are some "test pins", i.e V22.
What are they for? Is it possible to manage them, i.e for some led signaling?
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How do I know that the isolation tester is doing its job?
I am measuring the isolation resistance of a device where the measured value is within the range of just measuring with the test probes hanging freely in open air.
1 kV gives values in gigaohm range.
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Testing pulse drain current of a MOSFET
What's a good rig to test the pulse drain current of a MOSFET? I'm thinking using a gate driver very abruptly raise the \$V_{GS}\$ from 0 to the \$V_{GS\_max}\$ for the same period in time as in the ...
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Automated Hardware/Software Test
I am an Electrical Engineer and I don’t have a strong Software Engineering background.
My problem is: I need to test several Smart home devices. For example: a door that opens and closes (also 2 ...
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Hardware testing of the 1:1 connection for opens and shorts
I have a board (DUT = device under test), featuring (in addition to other things, which are not important for this question) 2 connectors - A and B. The connectors are connected 1:1 at the DUT.
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DIY transformer winding, "Light bulb test"
I "hack" cheap "electronic transformers" for use as filament supply for my tube amplifier projects. They operate at about 50KHz so there is no audible hum (a particularly annoying ...
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Electrochemical Gas Sensor Potentiostat Circuit
I guess this is more of a review request than a specific question, but I was wondering if anyone has any experience with electrochemical sensors and the required circuits for gaining accurate ...
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What is the most reliable way to test old capacitors?
I have a few old electrolytic capacitors from an old system that have not been used in many years.
I was thinking I might test them.
What is the best way to reliably test these old caps?
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