Understanding that higher tpl results in higher inductance, does wire tension likewise increase inductance with an increase in tension? Or is the other way around?
Announcement
Collapse
No announcement yet.
Wire Tension & Inductance
Collapse
X

Not TPL by itself but actual number of turns.
Of course, if you fill up a coil form with higher TPL, rising wire tension so you can fit more in same space, then you can fit more turns there, and that is the proper parameter to consider.Juan Manuel Fahey

Thanks. I am puzzling over an original Filtertron that needs repair. The coil is wound so loose it's...surprising. And the inductance is lower than I would have expected. I would a replacement coil but the inductance was much higher so I'm trying to work out what's happening.
Comment

Look, in the sky! It's a bird! It's a plane! No, it's Kibbitzer Man!
Originally posted by jrdamien View Post...I am puzzling over an original Filtertron that needs repair...
And the inductance is lower than I would have expected.
Originally posted by jrdamien View PostI would a replacement coil but the inductance was much higher so I'm trying to work out what's happening.
Shalom,
rb
EDIT: I see that Juan posted while I was tending the kugel.DON'T FEED THE TROLLS!
Comment

"So, all else being equal, a tall bobbin will have lower inductance than a short bobbin with the same number of coil turns.'
I think you have that backwards. Tall bobbin, more surface area of the core for the wire to contact, higher inductance. A shorter bobbin will be fatter, thus the wire is further away from the core thus less inductance.
Comment

Originally posted by mozz View Post"So, all else being equal, a tall bobbin will have lower inductance than a short bobbin with the same number of coil turns.'
I think you have that backwards. Tall bobbin, more surface area of the core for the wire to contact, higher inductance. A shorter bobbin will be fatter, thus the wire is further away from the core thus less inductance.
Comment

Originally posted by jack briggs View Posttell that to the P90 bobbin.......
Originally posted by mozz View PostSo, all else being equal.............................
But, ignoring that a pickup bobbin isn't really a solenoid, the inductance of a solenoid is really inversely proportional to its length.
You'll have to ask a physicist to explain why, because I can't. (Not without slogging through some physics text, anyways.)
Of course, this is all a red herring. I strongly suspect, along with Juan, that OP overwound his replacement coil.
rb
EDIT: Forgot to put this in:
DON'T FEED THE TROLLS!
Comment
Comment