I am looking for a delivery source to order air dielectric coaxial cable with low capacity like those on page 446 under http://kvantefir.com/assets/files/pdfdownloads/Andrew_cable.pdf
Obviously only in the United States there are suppliers therefore. Is this indeed so ?
Some years ago I have order various versions of that models in Germany All versions of air dielectric coax cables provides excellent sonic results while listening tests - particularly on the use of long leads between tube preamp output with not low output impedance and power amp input.
Unfortunately the formerly supplier from Germany are no longer in buisseness. Thank you very much for an information.
Obviously only in the United States there are suppliers therefore. Is this indeed so ?
Some years ago I have order various versions of that models in Germany All versions of air dielectric coax cables provides excellent sonic results while listening tests - particularly on the use of long leads between tube preamp output with not low output impedance and power amp input.
Unfortunately the formerly supplier from Germany are no longer in buisseness. Thank you very much for an information.
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That looks like standard catalog High Power RF (radio, radio antenna, broadcast antenna, etc) cable.
Exactly,
that's 50 ohm RF cable,
look at your nearest Conrad or Media Markt, where they sell TV antennas.
If I remember correctly there was an single blentage type with spiral air insulation in black color.
that's 50 ohm RF cable,
look at your nearest Conrad or Media Markt, where they sell TV antennas.
If I remember correctly there was an single blentage type with spiral air insulation in black color.
We call it Hardline around here. In my last office, I used about 150 feet of it to get to the roof of my building.
When you get to the larger diameters, it's difficult to work with. It's called rigid or semi rigid for a reason. I had a heck of a time pulling one inch line through a three or four inch conduit. I can't imagine trying to use it for audio interconnects, even if it is the small diameter stuff.
As noted, common commercial radio / ham radio stuff - it turns up at hamfests, a two way radio shop might have some end pieces off a reel, that are too short for anything radio useful.
Win W5JAG
When you get to the larger diameters, it's difficult to work with. It's called rigid or semi rigid for a reason. I had a heck of a time pulling one inch line through a three or four inch conduit. I can't imagine trying to use it for audio interconnects, even if it is the small diameter stuff.
As noted, common commercial radio / ham radio stuff - it turns up at hamfests, a two way radio shop might have some end pieces off a reel, that are too short for anything radio useful.
Win W5JAG
I used 3/4 "Andrew heliax for my RF hobby. It's not an air-dielectric coax type.
And it uses incredibly expensive N-type connectors, btw 🙂
And it uses incredibly expensive N-type connectors, btw 🙂
If you look in the belden catalog, you will find may coaxials which use foam dielectric. They can go down to about 1.05 relative permittivity, which is darn close and quite a bit easier to work with.
jn
ps...look for prop velocity exceeding 80%, that will tell you it's foam. Solid dielectrics will be in the 50% lightspeed range.
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