Find and Buy Antenna Coils for Your Electronics Projects

[michael1978]

please can somebody help, how to find in electronics shop online
those components and to buy, is here juse one to make for all, i need juse one, which i can use for all projetcs
L1 antenna coil: 470uH with 1 turn wrapped = 2
L2 antenna coil: 470uH primary, 23uH secondary = 2
L3 antenna coil: 600uH to 680uH primary, to to 20 turn secondary = 2
L4 antenna coil: 330uH primary 10 to 20 turns for secondary = 2
L5 antenna coil: 600uH to 680uH with tap or secondary winding = 2

i don't know how to find self and to buy, can somebody teach me how to select

because i am reading on book, make your own radio transistor
i was in one shop here, i whait 3 months he can't find me, because he say is very difficult to find and, they don't use anymore, but book is from 2013 is not old thnx

 

[Tom.G]

https://www.mouser.com/bourns/
On that page, look in "View Products by Category" and click on "Magnetics".

Those products were originally by JWMILLER, a long=time, well-known supplier for coils and inductors. Bourns bought JWMILLER a while ago and sells under the Bourns name now. Bourns is a long-time, well-known supplier of variable rsistors (potentiometers).

 

[michael1978]

https://www.mouser.com/bourns/
On that page, look in "View Products by Category" and click on "Magnetics".

Those products were originally by JWMILLER, a long=time, well-known supplier for coils and inductors. Bourns bought JWMILLER a while ago and sells under the Bourns name now. Bourns is a long-time, well-known supplier of variable rsistors (potentiometers).

i find this page, https://www.mouser.co.uk/_/N-5gb4?P=1z0zlsd where to select now, and i don't see secondary

 

[Tom.G]

i find this page, https://www.mouser.co.uk/_/N-5gb4?P=1z0zlsd where to select now, and i don't see secondary

Under "Product" click "RF Inductors"
Under "Termination Style" click "Axial", then hold the "Ctrl" key on your keyboard while you click "Radial"
Under "Inductance" click on the value you want. You can select more than one value at a time if you hold the "Ctrl" key while clicking the values.
Click "Apply Filters"
Scroll down the page to pick the ones you.want.

Mostly, for the information you supplied, "Secondary" means you wrap that many turns of small wire around the coil.

Also try this site, they make custom coils. http://www.coilws.com/
And this one: https://www.coilcraft.com/pcv2.cfm

You might be better off finding a different project to start with. These things are very hard to find these days unless you want to buy from China or India. You may have to find an old junk transistor radio to take the parts out of.

Maybe someone else here has some good ideas for finding, or even making, them.

 

[the_emi_guy]

Part of the fun of making your own radio is building your own coils. Don't deny yourself the pleasure! Get some magnet wire and wind them. There are online calculators that will tell you how many turns you need.

What frequency band are you receiving?

 

[michael1978]

Part of the fun of making your own radio is building your own coils. Don't deny yourself the pleasure! Get some magnet wire and wind them. There are online calculators that will tell you how many turns you need.

What frequency band are you receiving?

o i don't know is TRF tuner, can you help me please to make one Ferrite-bar/rod antenna coils

 

[michael1978]

Part of the fun of making your own radio is building your own coils. Don't deny yourself the pleasure! Get some magnet wire and wind them. There are online calculators that will tell you how many turns you need.

What frequency band are you receiving?

they are for am receiver

 

[Asymptotic]

You may wish to visit The Radioboard's antenna forum which has several threads related to ferrite antennas.

Building radios from scratch was more common in the past. You may find downloadable PDFs contained within this bookshelf at the American Radio History site of interest. "Making A Transistor Radio", for example, shows how to build a simple ferrite antenna.