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Whew!
Been looking at DIY interconnect options in these forums and at Jon Risch's site (thanks Jon). Never done one, so somewhat hard to understand the routine. Want to make 16' set XLR interconnects between Audio Research LS15 tube linestage and Audio Research VT100MkII tube amp- don't want to order Belden 89259 roll at this point ($259/100'). Want to make quick set from local supplies: I'm in soCal with Fry's, Radio Shack, Orvac, Marvac nearby. Am ordering Neutriks from Parts Express tommorow. According to Jon's site one option is Radio Shack 910-1573 (Belden 82248) which I strip down and twist. At this point, I surround this assembly with a spacer/insulator- what do I use; heatshrink or tape? I then surround this assembly with braided shield (RS 910-1579, 0.285'ID)- what goes on over the shield? Is RS 910-1579 an assembly that I have to cut apart to retrieve shield or do I use it as it comes? Connections: 1 to first twisted conductor, 2 to other twisted conductor, and 3 to shield only at source (not also to signal ground?). Most of the posts about this routine were circa 2000- 2001. Are there new info, cables, and techinques that you guys are using now? Is nobody DIYing IC's anymore? Much thanks, Kip.
Follow Ups:
10.5 feet of DIY silver interconnect according to Chris VH's recipee. These things are flat out great!Point being are you really sure you need a shield? Mine don't have one. I just connected pins two and three. The 28 gauge silver wire w/cotton insulation and the contruction give ultra low capacitance, 3.5 pF/ft or so. That's low.
Another idea. See if you can't lay hands on some Belden 1800F. Works great=best shielded cable I've found for balanced use. Durable, too.
on December 20, 2005 at 00:09:16 oofer wrote:> > are you really sure you need a shield? Mine don't have one. I just connected pins two and three. < <
This wouldn't work for any equipment that uses true balanced circuitry though; pins 2 & 3 would cancel each other out!Has anyone made the Chris VH silver/cotton/teflon ICs in a true 3-wire balanced configuration? And if so, was it just a matter of spacing the 3 conductors in equidistant spirals around the teflon tube?
oofer:
Thanks for response. Help me out- the wires are wraped around a hollow tube; then held in place by plummer's tape or HS. Do these bend? Wouldn't the inner tube kink maybe? I need about 18', so the 25' lengths that it is sold in would cause a problem- have to but 4 rolls (maybe available in longer rolls). 28 gauge seems a little small to me. I think I'll try it for short IC's with RCA's (tuner, CD player, etc. to preamp). About Belden 1800F: Blue Jean Audio 1800F's already made up with Neutriks: 15', $36! That's almost too cheap!
28 gauge seems a little small to me
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