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Soldering a TRS to TRS cable?

I am trying to make a transfer cable for my TI-84 Plus Silver Edition Calculator. It came with a USB-mini to USB-mini cable, but it has two ports on top. One for a USB-mini cable, and one for an I/O cable, with 3/32 TRS jacks (2.5mm) from Radio Shack. I am wondering how to connect two TRS jacks together to make a transfer cable. I don't know what kind of wire to use, or how the wires should be connected.

Question by Pettrocity    |  last reply


TR-18- to -TR-8?

IM MAKING THE TR-18 BUT IM GOING TO USE AN 8-SHOT TURRET ON IT? WHAT DO I HAVE TO DO SO IT WORKS???? PICS WILL HELP (sorry its caps, i didnt realize 

Question by MegaMetal8    |  last reply


TR contest

OK This my second attempt at a contest (hopefully it works this time) . This is very simple post pics of your Tr-18/8/ what ever turret size you have, and list of features and every one who wants will vote on the one they like the best. simple enough.  Voting deadline: ended ---------------------------------------------------------------------------------------------------------------------------------------------- votes (feel free to recount to see that i did not cheat) ninjusk=5 Logic boy=3 bigdylan91=1 Dj=0 ---------------------------------------------------------------------------------------------------------------------------------------------   Contestants DJ Radio (pic #1) Original trigger guard that extends from the grip - Original ironsights Adjustments made since the picture: - Removal of the ratchet mod since it was too much trouble - Extention of the stock. Ninjusk (pic #2,3) custom stock, Front and rear sights ,and ammo holder in stock (with pin lock). updates not in pic, under barrel grenade launcher(had bad range), trigger guard (didnt like it so i took it off) bigdylan91 (pic #4) -modded rubberband thing -i guess you can say custom stock -and i guess custom handle Logic boy (pic #5) new iron sights new stock modded futher, now has a flip up rear sight, it has no real use unless you are holdind it straight out in front.

Topic by ninjusk    |  last reply


Rate a Custom TR! (update)

Since everyone likes the TR so much and people are making custom TR's, I decided to have a "Rate a TR" thread.  Other sites have similar threads, like SSCoasters. The basis is that you post a picture of your TR, and the next person to reply has to rate your TR on a scale of 1-5.  Then he posts a picture of his custom TR, and the next person rates it and posts his TR, and so on. The more modded a TR seems, the higher rated it should be.  To start the topic off, here is my custom TR.  It uses Zak's stock because I like it so much, and it features original custom ironsights, and a neat trigger guard that attaches to the foregrip.  I will probably post a video later. *Edit* since there seems to be some debate on mods, I will clarify what I meant: By "mods", I meant mods that make the gun better or increase efficiency in some way or form.  So if you throw a bunch of random parts on your TR like a scope or a grenade launcher, it doesn't count towards my overall definition.  *update*:

Topic by DJ Radio    |  last reply


how to make 3.5mm 4-Pin to 2x 3-Pin 3.5mm Headset Splitter Adapter - M/F

Anyone can tell me how to make it is so simply..? im looking in arround of my live but im not found it. please send me a skeme

Topic by N7114  


tech noob question on stereo jack

Can I have a silly technical question for which I would have known the answer if I only paid more attention at school? how is possible that stereo headphones, ie 2 speaker circuits use only 3 cables? I understand the "ground" is the one that both speakers,ie left and right have in common but how come it doesnt bother the signals which go to the speakers? doesnt the left signal get mixed up with the right signal? and why is it called "ground" when it's not actually connected to the ground, like for example lightning conductor is? I've read through the wikipedia article about TRS several times but still can't understand it. thanks for answer, I promis I won't forget it this time :)

Topic by tap    |  last reply



TR-8 Aftermarket kit, TR-36 "Overkill"

I know this works for cars, so I decided to put an extreme spin on KILLERK recent TR-8. The majority of the body is based of the TR-8, but as you can see I added a little different styling to the handle which is also used to support the heavy turret. I added a bit more of a stock to the original but kept the mechanics the way they were. (can't mess with perfection) The turret itself has a ratchet, similar to the TR-8 which allows the turret to only "wind up" in the correct direction. The turret is also attached the same way as the TR-8 with a socket joint in the grip of the gun. I threw some tactical rails on the sides of the gun to try to hint at capability with attachment but the turret is kind of blocking any attachment you would put there. Overall the TR-36 Overkill feel awesome (heavy) and with that phenomenal power and range you would expect from any turret gun. Tell me if you're interested in an ible' and I'll start working on making one.  Thanks for looking! JonnyBGood

Topic by JonnyBGood    |  last reply


Some Comfy Handle Mod's For The TR

These are some comfy handle mod's that i made for the TR by KILLERK.

Topic by bigdylan91    |  last reply


Microphone wiring? Answered

I have a broken microphone. Its wire is cut  inside the insulation. i want to replace the entire cable. when i removed the plastic cover of the microphone i saw a red and a black wire soldered to it.  Therefore it uses only 2 wires but in the connector it is a TRS one not a TS one. i will also replace the connector.  i am wondering how should i wire a TRS connector which has 3 leads. one being the common ground. but the other 2.  should i short them out and connect the red wire or must I connect the wire to only one lead?  Then if i buy a $0.2 TS connector and i wire it accordingly. will it work? One another question does the microphone device has polarity that is should i connect  positive to positive and negative to negative lead. because there is no indication on the Mic?

Question by ARJOON    |  last reply


What is the newest TR trigger?

The title says it all. =D

Question by ~KnexBuild~    |  last reply


JBL TR 225 into a 3.5mm?

I recently received 2 JBL Tr 225s and i wanna connect them to my comp. which has your standard 3.5mm connection. is it possible? If so what do i need to make this happen?

Topic by fonzorell760  


My CQB TR-18.

Hello knexers! I am presenting my first ever TR-18 for you guys.

Topic by beanieostrich    |  last reply


My New TR Dooooods

Commence the jelly fest. http://knexinnovation.net/showthread.php?666-Completed-Projects-thread&p;=15198&viewfull;=1#post15198

Topic by Knarez    |  last reply


What is the K'nex TR-V1 or the BR8? Answered

I saw in another question a parts list for the TR-V1 or the br8. what are they?!?!?!?!?!

Question by NYPA    |  last reply


Converting stereo sound to mono from an mp3 player or other similar devices? Answered

I am makin a small project where i need to input mono sound. almost all mp3 players output stereo channels.  in my circuit i have a TS connector where mono sound need to be input.  if i connect a TS connector in a TRS socket., will the output be automatically be mono or i will only get one channel out of the stereo output from the mp3 device???? thxs in advance

Question by ARJOON    |  last reply


What is the difference between the TR series and the BR series?

Yes, I know that the TR is the turret rifle and the BR is the battle rifle, but is there a fundamental difference between the 2, or is it all just preference as to the name?

Question by The Jamalam    |  last reply


tr-v1(br8) parts list? Answered

Tr-v1(br8) parts list?yeh a parts list i dont have the time to count them out cus i wanna bulid it and who ever gets a parts list i will 5* all of there ibles and if you dontn have a ible i will do the same with the fourms

Question by knexsuperbuilderfreak    |  last reply


Anyone have instructions for the TR-8/BR-8? Answered

I wanna make one of them so does anyone have instructions for em??? please do a link if you can megametal8

Question by MegaMetal8    |  last reply


Voting has begun!!!!!( TR contest )

OK to remind everyone voting has started today. Please vote it takes less that a min to do. every thing you need to know is here

Topic by ninjusk    |  last reply


New k’nex gun concept that could potentially be better than a TR-8

I’ve come up with a magazine system based on the TR-18’s turret system. I’m trying to incorporate it into a TR-8 2018 body currently. It needs to hold the shells in while still letting the ammunition stick out the front. I’m also trying to avoid cut/broken parts unless absolutely necessary. Here are two possible shell designs I’ve come up with so far:

Topic by PotatoDemon  


Old hobbies die hard... some TRs

I had a lot of old pics to work off of so the building experience was a lot like what I remember loving about knex, without the frustration. This blaster (:>) has a pretty solid mech. The slide, anchored by the gray connectors on the naked black rods (hehe), requires the full motion to prime, resulting in the longest pin draw possible using this draw/anchor method. The pin I have on this has a rubber washer of sorts that I had laying around, so far working wonders. No broken pieces were required, though I slid a broken black rod that was conveniently the perfect length into the barrel construction. As I mentioned in the title, I built this just yesterday and I expect that it'll be further modified -- the grip was something I had lying around and could essentially just throw on, the stock was rushed. I was planning on building another and I'd be happy to make instructions if there's any demand, though these pics alone may be enough for the few of you. (8/24/15) Link to better quality pictures, really unimpressed by what got uploaded here... https://imgur.com/a/4y1Se Credit to KILLERK for the TR of course. I just gave it a new body. Update 8/25/15: 3D printed a piece for the front of the barrel. Update 8/27/15: Small changes all over. I'm okay with the front grip. There's some mole skin on the handle. Changed the below pictures to reflect what I currently have, clearer pics in the imgur album. Update 8/31/15 Finally got around to classing up the stock, quite happy with how it turned out. A few other changes as well, updated the pictures once more. Should be able to build from these pics!

Topic by Knarez    |  last reply


Quick question about turrets

I planning on maybe building a turret gun and I was just wondering if the White rod mini pins on the tr-8 are essential for good ranges from a turret, as, if it is viable, I would quite like to build a turret without the mini pins. thanks, I.E.

Topic by I.E.    |  last reply


Stockless TR18

Not really much of a CQB, so I changed the title, for those wondering. I have developed a stockless TR that performs just as well as a bigger (as in, with a stock) counterpart. Zak's handle and thumb-hole part are required. Thoughts, Opinions, Comments? Also, rate and subscribe for more. Video's here! Anyways, newer pictures posted.

Topic by Raikou-san    |  last reply


Personalised Tr8

My entry for ninjusk's Tr contest. I like it alot. thats it.

Topic by Fred the Penguin    |  last reply


Z35 or TR18? Answered

Should I build the TR 18 or the Z35, what's a better gun?

Question by Mr. Muggle    |  last reply


K'nex Chat

Get on and get into building better guns! Join me and other builders here. http://cbe002.chat.mibbit.com/?channel=%23kichat&server;=irc.darkmyst.org

Topic by Knex Lego Maniac    |  last reply





can i install a jr racing 3ch75MHz reciver on a traxxas 2.5 revo?

I putt it on and it wouldn work

Question by mclovin7596    |  last reply


why cant i favorite ibles? Answered

i cant faverite anything because it says ERROR 400:user nfk11(USER) something something something.if you have seen this or you know whats going on pleas help.

Question by nfk11    |  last reply



how to construct a simple circuit using LDR and transistor? Answered

Materials: LED, LDR, BC337 transistor, 10k trimmer, 500ohms resistor.. 

Question by animeguild53    |  last reply


EVGA 01G-P3-N959-TR GeForce 9500 GT Video Card compared to a XFX Radeon HD 4550? Answered

Ok, as the title sugests (i cant spell that word!), which is better? The GeForce 9500 GT or the Radeon HD 4550? I have the 4550 and im wondering if the 9500 will out-perform the 4550. I play a little cod 2 and gta san andreas multiplayer. PLEASE REPLY!

Question by sci4me    |  last reply



Are there any knex guns that just need to be built? Answered

What im meaning by "Need to be built" are guns like the tr , mezak , and the knexsayer?

Question by 182515    |  last reply


I have wireless headphones that has to have the transmitter plugged in to the TV,?

 but my tv doesn't have the audio plug the transmitter will plug into.  Is there any way I can make it work ?

Question by deancross    |  last reply


how do i put window back on track on 1999 dodge truck , electric window?

Should there be a roller on it and where can i get them?

Question by don cochran    |  last reply


Ranges on a knex gun gone wild!

There is no way that a knex gun can reach 60 feet using the simple ram mechanism. Ive made the NAR and fired it using 3 brand new #64 sized rubber bands and ammo with fins! It did NOT reach 100 feet or even 60. The NAR only reached 50 feet.Ive also built the TR Sayer and TR 8. They also did not reach the length that the owners claimed. Its really sad that people are putting high ranges even though they're all a lie! What do you think?

Topic by DELETED_Blue Mullet    |  last reply


What is the CHEAPEST way to fix a BAD roof on a trailer?

The roof on our trailer (mobile home) is dying a gruesome death....any helpful tips would be MOST appreciated! _Sincerely, tamarack1pines

Topic by tamarack1pines    |  last reply


Installing ticket... ERROR! (ret = -2011). when trying to load up the wii I get this any clues?

Installing ticket... ERROR! (ret = -2011). when trying to load up the wii I get this any clues?

Question by stuart1610    |  last reply



How to communication between arduino and computer? Answered

I am working on Fleet management and this with my project There are three possible states for the device which we need to implement (Off, Running, Configuration, Factory Settings) There should be a button to change the device status (only one button please). If the device is already off, pressing this button should bring the device in running mode. If the device is on, pressing this button for 5 seconds should bring the device in configuration mode If the device is in configuration mode, pressing the button for 5 seconds should restart the device, and pressing the button 3 times should set the variables to default values. If the device is on, pressing the button for 10 seconds turn of the device When the device is in configuration mode, we should be able to plug the device with a computer using USB. The device should start sending it's internal APN code with a specific sequence e.g. TRRT as soon as it sends this code to the computer, it should wait for response from the computer. The computer can sends back the code TRRT or no response. When the device receives TRRT, it should match the IMMI it sent and the IMMI it received. If both matched, then it should wait for settings: The computer will send data as TRRT where varname is e.g. APN, USERNAME, PASSWORD, URL, POLL_INTERVAL etc. the value after first : is the the value of the variable. The device should save these values to SD or it's internal memory immediately. Now press the button for 5 seconds, the device should restart and straight away enter into running mode. Now the device should connect to server using and sends GPS location and speed every interval set by the POLL_INTERVAL variable. Let's achieve this first, I'll add more functionality once we're done with this. Thanks,

Question by SulemanC    |  last reply


The Kinetic Warbow (in progress)

So I got a lot of responses and It seemed to me that the TR would be the best choice for a gun to integrate with my semi auto.  However I would have to do this in a way that did not obstruct the firing process of the semi auto, and therefore I had to put the turret off to the side.  Using techniques from the D-TAB, I was able to integrate the same bow and, with a turret on each side.  These turrets do not sag like in the original D-TAB, and they can be wound in the same way that KILLERK's most recent TR is wound.  If I can, I will use a Swagboss-like trigger in order to isolate each shot, though only one pin will be pulled back.  Let me know what you think!

Topic by Kinetic    |  last reply


I'm Starting an Anime Fansub Group but I Need a Translator...

Hello, I'm starting a fansub group, but I'm having problems finding someone to do the Japanese to English translations. can anyone help or tell me where to find someone to help (don't be a jerk and say Google)?

Topic by REA    |  last reply


New K'nex!

I have new K'nex being shipped to my house on Friday Sept 6th! Plan on seeing pics here of my latest K'nex War 2013 "Jared Resistant" TR8 mod package! The "Jared Resistant" Mod Pack includes the following: improved stronger turret with "5th" layer and green rods allowing for tan clips saving on blue clips Much improved more solid turret rod connection Brand spanking new trigger for more consistent reliable trigger pull Much improved ratchet mech Brand new super solid slide/charging handle for much easier to operate gun

Topic by Knex Lego Maniac    |  last reply


K'nex show and tell

I was hoping to use this forum topic to post discussion and pictures of all K'nex projects I am working on. Feel free to post you own ideas and pictures so we can work on our projects together further advancing the K'nex community. My hope is that this will be a productive active forum to encourage and push the community to get better and continue to grow. If you want to discuss more about K'nex jump onto KI chat introduce yourself be patient and if your lucky you may get to discuss your build with your friends and others in the community use the link below! http://cbe002.chat.mibbit.com/?channel=%23kichat&server;=irc.darkmyst.org

Topic by Knex Lego Maniac    |  last reply


I need away to use my blue tooth ear piece as a transmitter to another blue tooth ear piece.

I need to be able to listen from a short distance away. sort of a spy device.  having its own coded freq. would be helpful too.

Question by Demascus    |  last reply


How do I make a turret winder? Answered

I saw the video of The Foofinator's handle pump TR-8, and I noticed that he wound up the turret with a wheel on the end of the turret. When he turned the wheel to wind the turret, the turret didn't move. How does it work, and are there instructions for the turret winder?

Question by ~KnexBuild~    |  last reply