DIY Cable Questions and Comments Thread
Jul 12, 2017 at 1:35 AM Post #7,247 of 10,535
Jul 12, 2017 at 9:29 AM Post #7,248 of 10,535
Jul 12, 2017 at 9:43 AM Post #7,249 of 10,535
Here's a newbie question...

I want to make an RCA to 1/4" female TRS adapter cable (so that I can connect my headphones to the pre-out RCAs of my Audio GD NFB-11).

The wiring would seem to be really simple, but just wanted to make sure I have it right.

Four wires (24 AWG Canare) . + and - to each male RCA connector. Then, for the female TRS, Left+ to the tip, Right+ to the ring, and both negatives to the sleeve.

Right?
 
Jul 12, 2017 at 3:53 PM Post #7,251 of 10,535
Another newbie question.
While I've been soldering for a long time, never anything so small as .78mm 2 pin plugs, or .2.5mm TRRS plugs.
I'm looking for something to practice on, especially for the 2 pin connectors. I'm not willing to sacrifice a bunch of them while I hone skills.
Does anyone have any suggestions? I've looked for cheap connectors but can't seem to find any.
 
Jul 12, 2017 at 3:59 PM Post #7,252 of 10,535
Where are you located. I might be able to send you some small connectors gratis.

Tom
 
Jul 12, 2017 at 8:27 PM Post #7,253 of 10,535
Another newbie question.
While I've been soldering for a long time, never anything so small as .78mm 2 pin plugs, or .2.5mm TRRS plugs.
I'm looking for something to practice on, especially for the 2 pin connectors. I'm not willing to sacrifice a bunch of them while I hone skills.
Does anyone have any suggestions? I've looked for cheap connectors but can't seem to find any.


Solder the wire to a small finishing nail to practice.
 
Jul 13, 2017 at 6:45 AM Post #7,254 of 10,535
Hi all - I've made a few headphone cables recently and this thread has been a fantastic resource, so thanks to everyone on here. I've been using either copper wire with a clear insulating sheath or random colour wire sleeved in paracord, all using 24AWG stranded. I've seen a few photos of people using wire that has a brass coloured insulating sheath. I've been looking all over but cannot find this - I've even been checking jewellery suppliers for it. Is it a trick of the light showing this colour in pictures or is there a supplier somewhere that I've missed?

For reference I'm talking about something similar to a cable that Pinkypowers posted for Meze 99 Classics back in early Feb:
9615600_thumb.jpg
 
Jul 13, 2017 at 8:37 AM Post #7,255 of 10,535
I have seen some litz wire that is that color, there is an enamel coating over each strand and sometimes the wire also has a clear jacket. If I can locate a good supplier I will post a link.

It may still be copper wire in that photo but the gold portions certainly look gold so I suspect the wire is more of a bronze color.

Tom
 
Jul 13, 2017 at 8:48 AM Post #7,256 of 10,535
Solder the wire to a small finishing nail to practice.

This is not a bad idea and it certainly works. When I offer to send connectors and such it is because I receive a lot of samples and oftentimes we do large, one time projects, where we have to buy extra connectors. Occasionally I get connectors that I have to reject because a small percentage is defective and I can either dispose of them or offer them for training purposes. I have a large amount of RCA connectors from one supplier that fell into that category.
 
Jul 13, 2017 at 9:24 AM Post #7,257 of 10,535
Thanks for the offer, PM sent.
and I'll probably try the finishing nail idea before I start on actual connectors.
I've got a decent amount of wire from some previous builds.
I'm sure not going to use DH wire to practice!
 
Jul 13, 2017 at 9:29 AM Post #7,258 of 10,535
If I think of it I will try to include some star quad and probably some of the OFC 24 awg I like to use.

Tom
 
Jul 13, 2017 at 12:31 PM Post #7,259 of 10,535
I have a Weller WP25 soldering iron, but it only has the tip it came with, which is a fairly large, flat one that looks too large for a job like this. Any recommendations for a better size and or type to use? Maybe a conical shape?

Also, the solder I have is Kester .031" 60/40. Good choice for soldering connectors?
 
Jul 13, 2017 at 12:58 PM Post #7,260 of 10,535
I will have to check on the Weller tips but that solder is what four of my people use day in and day out to attach connectors to cable. I have purchased larger and smaller but 90% of what we use is the .031 Kester.

https://www.alliedelec.com/apex-tool-group-mfr-st3/70219714/

https://www.alliedelec.com/apex-tool-group-mfr-st6/70219718/

here are a couple Weller tips, a medium and pointed. I just did a search for WP 25 tips on that site and each add list the models they accommodate.

These are the styles I generally use, the medium is great for 1/4 inch and xlr's, the conical tip is better for small connectors. Normally I use 800 degree tips but I get by with 700 on occasion. It looks like your iron is rated in watts so I have a feeling most any tip made for it works at the same temperature all the time.

Here is a link showing the iron with the part numbers for other tips.

https://www.alliedelec.com/apex-tool-group-mfr-wp35/70219991/
 
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