Heavens, no. Throw them away before they waste someone else's time!...Would you like for me to send them back to you?
Heavens, no. Throw them away before they waste someone else's time!...Would you like for me to send them back to you?
Yes, you can definitely use your Rigol scope as a display for a curve tracer. You would just have to get a curve tracer. My CT is the old Hearthkit.@Lestraveled
I like to know if I could use my Rigol scope to do curve traces ?
Me liky to do that. What do I need in addition ?
Apparently, as soon as a company refunds your money in full, it's as if the transaction never happened, and you are unable to leave feedback of any kind.So what you are saying is that you can't always depend on a 99.x% rating from eBay?? Crushed, I am.
Just. Crushed.
And yet, here I found the exact part from aliexpress.con
Yeah, I googled LM35 and it just popped up in 'Images'.Apparently, as soon as a company refunds your money in full, it's as if the transaction never happened, and you are unable to leave feedback of any kind.
I find it interesting that the LM35 parts in the picture are datecode 36RA. What a f#@ing coincidence that they are exactly the same datecode as my bad parts. When I got good parts from another source (possibly also originally from China, who knows), they were a different datecode.
Don't count on it. The level of corruption throughout the whole country is breathtaking. There have been quite a few high profile arrests and even executions but it goes on. The government is trying to hunt down (literally in some cases) various ministers who have set up havens outside of China but its a drop in the bucket. Returning from a China trip last year, the big headline was the arrest of the minister for coal fired power plants - he had $32million in cash in his house. This year, smog in Beijing is still a big story... One problem is that their government realizes that it can't maintain the kind of %GDP growth that they have had if they require pollution controls, crack down on corruption etc. Its a mentality that pervades the whole outfit.Hopefully the Chinese Government will come to understand that not cracking down on counterfeiting will continue to have a negative impact on their economy and the perceived quality of their manufactured goods.
Does the surface seem to have been blacktopped or the leads pitted like they've been sandblasted (or re-tinned to make them shiny)?I have the same problem. Bought some eBay junk LM35's apparently. Marked to look like National parts, but absolutely no output.
They are in the trash can where they will stay.Welcome to AAC!
Does the surface seem to have been blacktopped or the leads pitted like they've been sandblasted (or re-tinned to make them shiny)?
Do a diode check between the pins to see if they might be transistors.
eBay and Ali Express are risky places to buy components these days. Amazon could have people selling counterfeit components. Don't be fooled by some thinking low prices means counterfeiting isn't likely. The cost of living in most of China is low and a few dollars a day is sufficient incentive to strip parts from discarded electronics.
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