For a project I'm working on, I need to make an air coil inductor out of magnetic wire, it has enamel over, should I remove the enamel over both the ends?

 

Hello there! yes!
Would you mind if I can take a peek at your project for safety purposes perhaps?

 

Hello there! yes!
Would you mind if I can take a peek at your project for safety purposes perhaps?

Here is the link to the project: https://www.rtl-sdr.com/ba5sba-direct-sampling-kit-english-build-instructions/

The instructions pdf on that link says to solder as it is, without removing the enamel.

 

Okay then the answer is still yes for the coil be very careful when you handle the wire you do not want to Nick the enamel coating along the length of the magnet wire so I would put some tape over the drill bit itself if you're going to use a drill bit. I would use some 1000 grit sandpaper to take off the enamel coating. Did your unit happen to come with a schematic? Which is different from the assembly instructions.

 

Okay then the answer is still yes for the coil be very careful when you handle the wire you do not want to Nick the enamel coating along the length of the magnet wire so I would put some tape over the drill bit itself if you're going to use a drill bit. I would use some 1000 grit sandpaper to take off the enamel coating. Did your unit happen to come with a schematic? Which is different from the assembly instructions.

The kit didn't come with any instructions or schematics.

 

If you are going to electrically connect the component in a circuit, then of course you must remove the insulation to connect it. Flame or sandpaper work well. Concerned about nicking, coat it with :

 

The kit didn't come with any instructions or schematics.

Here you go kiddo have fun!

 

Here you go kiddo have fun!

Mine didn't come with instructions but I already downloaded from the link I mentioned.

 

I scratch the enamel with a razor blade using light pressure then using crisp 400 sand paper before using soldering iron apply just enough
to apply 1/4" when it is installed the coil is about 1/8" above the board. On the ferrite toroid practice with some different colored wire and check the picture closely this way you get it right without wasting your enamel wire.

 

Can any guess the gauge of the magnetic wire and the colored wire?

 

Isn't it in the kit?
Coil and transformer calculator (dicks-website.eu) Scroll down for coils.
One tool I keep in my desk drawer is a Caliper.

 

Anybody every use Beldsol? It is magnet wire coated with a "meltaway" insulating coating. It is less resistant to abrasion but saves the user from having to scrape the wire and possibly nick it in the process.

 

That wire is "Magnet" wire, not magnetic wire. and the instructions use the word weld where it should say solder. It is certainly a very interesting project, I would purchase one for myself if you can share the source.

You will indeed need to remove the insulation from the wires.
For the wires, in each case, I suggest tinning ( getting the wires solder coated) for the ends of the wires that will be soldered to the board, before mounting the coils on the circuit board. That will allow you to solder them in place with a minimum of heat.

 

That wire is "Magnet" wire, not magnetic wire. and the instructions use the word weld where it should say solder. It is certainly a very interesting project, I would purchase one for myself if you can share the source.

You will indeed need to remove the insulation from the wires.
For the wires, in each case, I suggest tinning ( getting the wires solder coated) for the ends of the wires that will be soldered to the board, before mounting the coils on the circuit board. That will allow you to solder them in place with a minimum of heat.

They are available on Amazon and Ali Express.

 

THANKS for the information.

 

I bought an SDR from AliX and played with it a bit and found it not near as receptive as my Icom IC-R75 all band receiver running under Ham Radio Deluxe controls with a sloper antenna. But then you get what you pay for... Considering buying a Tram 1411 Broad Band Discone Antenna to use along with the sloper and longwire for the R75 and SDR.

FWIW

 

Thanks for that information.

 

Apparently, these dongles are not being used for what they were designed for, receiving Digital TV. It's the mostly open-source software that has been modified/built to take advantage of existing hardware. The Hardware comes in a lot of different types and frequencies, both XMT and RCV.
Explore Software Defined Radio: Use SDR to Receive Satellite Images and Space Signals | Wolfram Donat | download (1lib.us)