Overvoltage on transformer secondary

There's similar trickery used in magnetic chucks, so they respond to switching OFF by releasing their cargo promptly.

I've seen it happen, big voltage spikes when a sine wave drove a saturating inductor.

What kind of news client do you have that can pick up a post two and a half months old?

What client do you have that can't access a few years' worth of Usenet?

That kinda defines how to make a flux gate magnetometer. Going one way (out I think) is bigger cause of the dL/dt term.

George H.

I can go back hundreds of thousands of posts. It's picking the desired one that is the problem.

It's only a newsgroup. It doesn't matter.

Are you on your period all the time, or only on days ending in "Y"?

Try turning on threading. In Thunderbird, Nov 27 is only four or five screenfuls back.

Cheers

Phil Hobbs

It's interesting how many guys really don't like women, and use feminine anatomical references as insults.

As long as the news PROVIDER (the folks you get your news from)has that level of retention on their servers it is no problem.

Your news client (the app you read your news with)is able to pick up whatever is on the server at the time it makes the query.

You can search google groups and find news artiles years old.

Thanks. I use Xnews which runs on XP. It does threading but the search capabilities are pretty dismal. I have to scan through each post to try to find the one I need.

It used to have a very valuable function that stored the post number when you saved a post for reference. This made it trivial to respond to a post no matter how old. But it stopped saving the number some time ago which is a real pain.

There are several web-based newsreaders such as

The top one is best for searches, but it often is hit or miss when looking for a specific post.

So for the time being, I try to confine myself to replying to posts no more than a month or so old. Maybe it's time to take another look at Thunderbird, if it runs on XP.

Don't be a jerk, John. Maybe your life might improve.

Plonk. ...Jim Thompson

I was talking about inductors and newsgroups. You forked to personal insults.

The sure sign that an argument has been lost. :-D

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One doesn't lose a argument with John Larkin. He realises that persisting wouldn't show him in a good light, and starts asking if you have designed any exciting electronics recently.

Heheh... good one.

I asked you a civil question, and you began the runaround.

You are running Forte Agent 1.91/32.564. Why couldn't you have said so, instead of acting like a jerk.

And now you are trying to blame me, when the entire set of posts is available above!

John, I have helped you many times in the past. For example, remember TCalc? You said it helped you.

And I could have helped you many times since. But I refrain from doing so.

Because you are a jerk.