Electronics > Beginners

Where to buy ~0.5mm enamel wire for hobby use?

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Whales:
I want to wind some more coils for some crystal radios, however everything I have been able to find seems to be around 10x the price of copper by weight.  Remarkably Jaycar (brick and mortar store) is selling it for almost the same prices I can find it from China.

Is this normal?  These 100g rolls look really little, but am I still expecting too much?

Jaycar 0.5mm 100g: 12AUD
Aliexpress 100g #1: 9.50AUD
Aliexpress 100g #2: 11 AUD (inc shipping)
eBay 0.57mm 100g: 8.50AUD

I am tempted to see what aluminium options there are, or just stick to harvested stranded.

andy3055:
0.5 mm diameter is quite heavy wire. 100 grams will be hardly anything length wise. If you can get it from eBay, this guy has a sizable amount for US$ 8.59 plus shipping: https://www.ebay.com/c/17005611085

Not sure how that works out in AU$. :-\

BradC:
Try wiltronics for larger rolls.
https://www.wiltronics.com.au/product-category/copper-wire-enamelled-winding/

Whales:

--- Quote from: andy3055 on October 19, 2019, 04:07:32 am ---0.5 mm diameter is quite heavy wire. 100 grams will be hardly anything length wise.

--- End quote ---

About 55m according to seller from the 2nd Aliexpress link above.


--- Quote from: andy3055 on October 19, 2019, 04:07:32 am --- If you can get it from eBay, this guy has a sizable amount for US$ 8.59 plus shipping: https://www.ebay.com/c/17005611085

--- End quote ---

The pictures look sizable, but unfortunately it's only 40M for 14.50AUD.

ArthurDent:
If you check eBay you can find a lot of sellers of AWG #24/0.5mm/0.0220inch diameter magnet wire in lengths up to a few thousand feet.

https://www.ebay.com/sch/i.html?_ftrt=901&_sadis=15&_dmd=1&_ipg=50&_stpos=03868&_ftrv=1&_from=R40&_nkw=24+awg+magnet+wire&_sacat=0&_sop=12

One seller on eBay has 197 feet for under $8USD including U.S.A. shipping but it could cost you twice that much in shipping which will be a problem for you unless you can find a local seller. Another option is to find some local scraped device like a transformer and recover wire from that device. I used to get long lengths of antenna wire that way. There is a good chance that any coil you would wind for a crystal radio isn't that particular about wire size unless you want the coil to look a certain way or a larger size is easier to wind.

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