how to make inductor by own

[nitin.maurya1]

how can we make a 10micro henry inductor by own?

 

[mvs sarma]

For approximately making you can use any electronic calculators available on the net. one such is here
**broken link removed**
you can download and enable aircore inductor program, give parameters and get the turns. to make it after getting turns value, you might use drill bit shaft or some such where the dia is known. Finally clean the enamel of the wire at the edges and solder without deshaping the coil.

On the other hand if you need calibrated and tested to close tol,
perhaps you have to first make a LC meter and use it to measure and trim. One such design can be seen at **broken link removed**


i made it and it works fine. only you need to get one coil and one capacitor of close tolerance.

 

[nitin.maurya1]

which material i can use for core?

 

[mvs sarma]

Perhaps you can use T37 toroid core ( yellow colored),if possible. In Indian conditions,best appears to use a drum core or salvaged TV balun core , so called pig nose core with two holes. you can wind the coil across the middle arm.

air core can be tried with some wooden or plastic suppot, but it would need , say 45 truns or so at 0.4" inner dia and a coil length of say 0.5"

One thing remains, he wire gauge depends on the current carrying needs of the inductor under question.
Hope this serves.

 

[Qaisar Azeemi]

you can use Iron and Ferrite cores but it will be very difficult for you to develop iron core. but you can get Ferrite Core from the antenna of any discarded Radio Receiver, mostly mounted inside the plastic case of the Radio. However air core is simplest solution.

But the use of core will change the specifications of your coil and also its inductance values. so you have to decide what you can use and then calculate the inductance values from any available calculator on Net.

 

[milind.a.kulkarni]

Even one can use transformer stampping also ....in case you have any bad transformer

Good Luck