Topics

Source of small gauge shielded audio wire for a filter #ubitx

PeteWK8S
 

Looking for source of small gauge, shielded but flexible audio cable for internal wiring. 

Also looking for how folks might have added an audio filter like the Hi-Per-Mite filter internally to the uBitx.

I tried using a DPDT switch to route the audio from Audio1 connector to the filter and the DPDT switch then switching the filter out in and out to headphones.
It's a tight fit and cabling is crowed and awkward. It works but thinking there might be a better way.

If you've done let's hear and/or see how you did it.

Pete WK8S

Nick VK4PP
 

Hi, Chop up a set of cheap in-ear headphones....

See my new board, awating delivery:  https://groups.io/g/BITX20/topic/14920831?p=Created,,,20,1,0,0
Ill post up pic of it installed once done.
73 Nick.

chris gress <Chrisg0wfh@...>
 

I have found they are not screened chris

On 19 Mar 2018 00:19, "Nik VK4PLN" <nickpullen@...> wrote:
Hi, Chop up a set of cheap in-ear headphones....

See my new board, awating delivery:  https://groups.io/g/BITX20/topic/14920831?p=Created,,,20,1,0,0
Ill post up pic of it installed once done.
73 Nick.

Randy
 

Have you ever cut into an old USB printer cable?


Randy

DrZ <zehrhj2@...>
 

Pete
I have a Hi-Per-Mite in my uBitx and it makes a huge difference.  I'm not switching it, but I've installed the SCAF in other things such as my KX1 (I had a short article about it in QRP Quarterly last issue) have used DPDTs in those.
I'm purely cw, so in the uBitx I wired the Hi-Per-Mite between the headphones jack and the speaker.  If I want to bypass the SCAF, I use earphones.  Otherwise, I use the speaker.  
73
Howard K4LXY

Michael Davis <maddmd818@...>
 

Have you tried RG174? It's RF, not audio cable, but is thin, shielded and should work just fine. Finding a small length might be a problem though.

Jim Sheldon
 

You might check Amazon as well.  They have multi conductor (from 2 on up) 26 and 28 gauge shielded guitar control cable available in various lengths from 1 meter up.  I happened to see some there when I was looking for some ribbon cable.

Jim - W0EB

------ Original Message ------
From: "Michael Davis" <maddmd818@...>
Sent: 3/23/2018 10:34:59 AM
Subject: Re: [BITX20] Source of small gauge shielded audio wire for a filter #ubitx

Have you tried RG174? It's RF, not audio cable, but is thin, shielded and should work just fine. Finding a small length might be a problem though.

Neil Goldstein
 

Brian
 

I don't suggest you should spend money on this
https://www.ebay.com.au/itm/60cm-Internal-DVD-CD-ROM-to-Soundcard-Audio-Cable-Lead-Locking-H4PL-to-HP4L-/401497292390?_trksid=p2349526.m4383.l4275.c10
but really old (pentium) desktop computers used them. The modern SATA drives don't. Try your local friendly comnputer store. I have rescued lots.
Brian VK4BAP

Jim Strohm
 

I get most of my small diam wire by stripping it out of old TV sets or radios.

Plenty of good stuff if you take the time to look.

73
Jim N6OTQ

Jack, W8TEE
 

Ethernet cable is also good. Unwind the bundle of wires in the cable and then roll each on a flat surface with a 2x4. It will "unkink" and leave you with nice small diameter wires. I think this was Chuck Adams' (K7QO) idea.

Jack, W8TEE


On Wednesday, March 28, 2018, 11:49:46 AM EDT, Jim Strohm <jim.strohm@...> wrote:


I get most of my small diam wire by stripping it out of old TV sets or radios.

Plenty of good stuff if you take the time to look.

73
Jim N6OTQ

AA9GG
 

some of those headphones use litz wire....

AA9GG
 

I use ethernet wire for breadboarding.