[wolf18t]

What do you guys use and where (online) you find shielded wires used as hookup? For exemple from RCA jacks to volume pot.

 

[TimJo]

John's Silver Teflon Wire Shop.

I think he goes by navships on ebay. I'll look for a link, but you can probably do a search...

Here's the link: John's Silver Teflon Wire Shop

 

[SiBurning]

You could use shielded wire any time you have a long run of wire, especially in earlier low voltage/current stages. Long sometimes being anything more than 1/4". Heck, some people even use shielded cable for their speaker wire.

The idea is to avoid picking up rf or magnetic waves.

 

[qusp]

IMO shielded wire is not necessary for short runs unless you live in an area that has unusually high RFI in which case you have more to worry about than shielding your hookup wire. simply twisting the ground wire with the signal should do just as well in this application. if you are making long cables 20'+ then maybe it will be an issue.

 

[wolf18t]

Quote:

Originally Posted by TimJo /img/forum/go_quote.gif John's Silver Teflon Wire Shop. I think he goes by navships on ebay. I'll look for a link, but you can probably do a search... Here's the link: John's Silver Teflon Wire Shop

Thanks for the plug!

Actually I already bought some nice silver/teflon hookup wires from him. I just never noticed he also sell shielded wires in reasonable lenght.

 

[TimJo]

Quote:

Originally Posted by wolf18t /img/forum/go_quote.gif Thanks for the plug! Actually I already bought some nice silver/teflon hookup wires from him. I just never noticed he also sell shielded wires in reasonable lenght.

Well, it really wasn't intended as a plug, but your welcome nonetheless.

It just happens to be where I bought the shielded wire I have.

 

[SiBurning]

Twisting reduces low frequency, local magnetic effects but it's useless against signals like RF. Shielding has the opposite problem. Best would be a tightly twisted pair inside a properly terminated shield. Typical compomise is a grounded aluminum case and twisted wire inside.

How long is a 1/4 wave cell phone antenna? 1.5" - 4"

Anyway, I think I misunderstood your question. I use any old coax, but have resorted to shoving speaker wire through braiding sleeve for high current applications.

 

[royewest]

I've had good luck with this:

Belden 8450 22 AWG Solid 2-Conductor Paired Microphone Cable

 

[qusp]

Quote:

Originally Posted by SiBurning /img/forum/go_quote.gif Twisting reduces low frequency, local magnetic effects but it's useless against signals like RF. Shielding has the opposite problem. Best would be a tightly twisted pair inside a properly terminated shield. Typical compomise is a grounded aluminum case and twisted wire inside. How long is a 1/4 wave cell phone antenna? 1.5" - 4" Anyway, I think I misunderstood your question. I use any old coax, but have resorted to shoving speaker wire through braiding sleeve for high current applications.

ummm yes you are correct. but thats why I recommended twisting for short runs inside the case (which is what I took to be his purpose) and recommended shielded for long runs (outside the case of course). I dont believe shielding is necessary except in long runs, or in very noisy environments.

 

[SiBurning]

I think I took this thread astray. Sorry for the confusion.

Anyway...

I guess it's very noisy around here. Every time I cobble together an amp, at some point I pick up WNEW-FM, NYC's classical radio station. Maybe I overreact because of that.