W
Watson A.Name - Watt Sun
- Jan 1, 1970
- 0
I dug around in the garage and brought a couple old AA5 tube radio
output transformers in to check with my AADE L/C meter. I found their
secondaries to be a few tens of microhenries. But measuring the
primaries gave me the 'Not An Inductor' message. This is not
unexpected, since the L/C manual warns that power and audio
transformers have a very low Q and will not measure at the higher
freqs used by the meter. So no problem.
I took a couple 0.1% precision wirewound resistors made by Cinema and
similar companies, and measured them with the L/C meter and came up
with values in the several tens to a hundred microhenrys. Not
unexpected I guess since there was no attempt to bifilar wind the wire
to cancel inductance.
So there you have it: an inductor that thinks it's a resistor, and a
resistor that thinks it's an inductor!
--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@
output transformers in to check with my AADE L/C meter. I found their
secondaries to be a few tens of microhenries. But measuring the
primaries gave me the 'Not An Inductor' message. This is not
unexpected, since the L/C manual warns that power and audio
transformers have a very low Q and will not measure at the higher
freqs used by the meter. So no problem.
I took a couple 0.1% precision wirewound resistors made by Cinema and
similar companies, and measured them with the L/C meter and came up
with values in the several tens to a hundred microhenrys. Not
unexpected I guess since there was no attempt to bifilar wind the wire
to cancel inductance.
So there you have it: an inductor that thinks it's a resistor, and a
resistor that thinks it's an inductor!
--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@
