Once again I found you guys. When Ian sold this Forum it took a while for me to find home. Now I see you've disappeared from
access through Maker Pro. I wonder how many of us have been lost through these transitions. Since Ian, it seems to me that
older members like me have dwindled, and I...
Edward, Before I retired, we used a specialized spray-on ESD coating (that I don't remember the mfgr of), which rehabilitated the
effectiveness of ESD protection. The spray was commercially available.
crutschow, ESD coatings are to isolate the person handling the tweezers from the ESD sensitive...
The problem might not be in the power or control boards. Check the obvious alternatives also.
Switch that senses when the dishwasher door is closed (or not).
Clogged pump tubing.
Anything the manual or website troubleshooting for your model mentions.
There are so many sensors in these modern...
I'd be checking the accuracy tolerances of your devices. Tolerance +/- what percent?
My personal opinion is that you have an unacceptable mechanical tolerance accuracy for
your application, and should be looking for an alternative solution.
It would help people here try to offer help if you...
Methinks it may have been a custom-built connector for your device(?)
When I run into a problem like this, I find socket pins that fit the posts, and
connect the wires onto the individual sockets that fit the posts. That way
you can still remove the sockets if needed later. Use heat shrink...
I don't get much help anywhere, asking questions about old electronic components. I suspect that most of the guys who knew the
answers are gone now. Much like the usage of the parts I ask about. Sometimes it's depressing to realize how much of a dinosaur
I've become, AND that the tens of...
Delta Prime, Hard to believe this old post is still of interest.
They were all TO-92. I was as in-shock at the price as the instrument owner was.
I suppose they were no longer made, so the broker believed he has gold in them there transistors.
(I would expect he's still sitting on them).
This is a very old post that I made. Just an update for anybody that might be interested:
The transistors went in a high-end test and measurement instrument. The price was so high
that the owner declined the repair in lieu of a new replacement instrument. So I never bought
those transistors.
I second Alec_t's observation. I've found a lot of manufacturer specs must have been made under lab test conditions, 'cause they often
don't hold-up in real world situations. A good pot is needed, but an accurate input voltage regulator for that type of accuracy is a must.
In my humble opinion.
What poormystic???
You have to plan for at least 40 year ESD foam,....
Otherwise you're going to be in my boat after 20 years wondering why I used that lousy spongy foam.
Of course by the time we hit 88, semiconductors will probably be obsolete, and we'll be antique dealers.
I'm going to mention this FYI.
I've had DIP and leaded semiconductors stored, some for 40 years.
I don't know if the black foam has a life expectancy, but my belief is that some of the different makes have different chemical properties.
I know poormystic is in my age bracket from previous shared...