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Allen Bradley potentometer operator purchase for a VFD

rons

rons

Diamond
Joined
Mar 5, 2009
Location
California, USA
Allen Bradley invented the potentiometer at the beginning of the last century, in fact that's what put them on the map. But they sold that division off about 40 years ago. So if you have a Type J pot that still says A-B on it, it's at least 40 years old. That stock has long since lost its inventory value, so anything they could get for it was likely 100% profit now, to them anyway.

A-B sold off the potentiometer product lines to a company that became Clarostat, who was later bought by Honeywell. You can still buy the exact same Type J pots from Honeywell, probably worth about $50 new. So yes, you still got a bargain, but understand that all of the plastic parts in there are over 40 years old.

That A-B operator is a sealed oil tight industrial grade operator made to be used with any potentiometer with a 1/4" shaft. And that list price is a price only paid by people who the distributors don't like... A-B authorized distributors are not allowed to show net prices on the Internet, they can only show List, then you can get a net price by contacting them.
 
rons said:
Look at the this web list price. Does not even come with the pot. Merry Christmas.
Click to expand...
Could be worse. Every cooking pot I ever bought came with no damned FOOD in it!

Makers hadn't the least klew what I wanted to cook and eat anyway. Had to decide what I wanted, then buy that separately. Over and over again, too!

Bloody expensive, as lasting as "Spring" Swiss stainless is, and food NOT!

You might get away with doing that choosing part but once.

Better yet, whatever you "cook up" with it, the contents will not have been eaten, then turned to s**t before the next day is out.

Downside is that unless you sneak it out of California, quick-like, it may cause cancer.

Merry Christmas, and make the best of that!

:D
 
TDegenhart said:
So now you have an operator that will look swell but without the potentiometer kind of worthless.

Tom
Click to expand...

You missed the point and did not notice that a collar in the kit installs on any small potentiometer. The collar mates with the operator. No biscuit. :(
 
hermetic said:
Allen Bradley invented the potentiometer? :icon_bs:
Johann Christian Poggendorff, Germany, 1841.
Click to expand...
OK, A-B made the first COMMERCIALLY SUCCESSFUL potentiometer... Lot's and lots of things have been "discovered" by scientists and inventors that never see the light of day, because their initial discovery is basically useless. Poggendorf described the first potentiometer, as a way to measure voltage without pulling current.
 
Still BS Sir Charles Wheatstone was using wirewound rheostats in 1845. Allen Bradley was " founded in 1903 as the Compression Rheostat Company" And also, it is something else that Edison didn't invent
 
"The carbon potentiometer we use today" (from the wiki page), is not wire wound,it is carbon. Edisons patent is clearly for a wirewound device, which was already in common use in 1845 in Britain , Edison was very good at getting US patents where none existed, although the device was already invented and patented in other countries!
 
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