Best place to by enamelled wire 0.5mm ? for coils is this what I need ?

[David_1]

as Title

[Carl-NC]

For PI coils I would use regular PVC insulated stranded wire. Probably no smaller than 0.5mm. Enameled wire will work but capacitance will be higher.

[David_1]

ah... thankyou

[David_1]

https://www.ebay.co.uk/itm/114934401129

I like surface mount has anyone else seen this one ... I ordered it, from Ukraine so that might be interesting at the moment

[David_1]

Pi detector..
The two diodes 1n4148 these values are so common near the coil, but others must of tried other diodes is there a better one or is this just as good as it will ever get ?

[Carl-NC]

Practically they work as well as anything else. I've tried "ultrafast" diodes and Schottkys but they are no faster.

A key element in faster diode recovery is the amount of clamp current you start with. So a higher resistor value buys you a lot more speed than a different diode.

[David_1]

so I chatted with a UK guy off here.. Great bloke
he said...
"Until you’ve experimented with coils and built a few I wouldn’t spend too much money on coil wire. Initially all I used was the following stranded hookup wire from RS. RS PRO White, 0.13 mm? Hook Up Wire, 100m Stock no.:872-4473It’s only ?10.43 for a 100m roll and I’ve made quite a few coils "

its got an MPPE insulation much thinner than the normal PVC, so I now have it in red black and white.. from what I have read its a little more Green too..
Not made a coil yet... LOL

More a post to say thankyou !

[Carl-NC]

He's right. Start with ordinary insulated wire, you'll get good results for little money. Using e.g. Teflon gets very little extra for a lot more money.

[David_1]

Found it Carl !

[Carl-NC]

Wow, that goes way back.

[David_1]

is there any data on it... where would I look ? it your address on it lol well PO box

[Qiaozhi]

Found it Carl ![ATTACH]56820[/ATTACH]

Hammerhead details are here (from Rev C upwards) ->
https://www.geotech1.com/cgi-bin/pag...head/index.dat

Older revisions are here (from Rev B1) ->
https://www.geotech1.com/cgi-bin/pag...file=index.dat

Your PCB is Rev A, but this still might be useful.

[Olly]

as Title

In the UK "wires.co.uk" has quite a selection of enamelled & litz for reasonable prices