external Mic for (tr)uSDX - showing the use of 3D printing in Amateur radio

[@hb9mtn]

Thanks!

[@dl2man]

Thank you !

[@hpbear101]

I used an old CB power mic for a donor. I gutted the old mic and put a small speaker and a junk box electret element in the case. I used 2 3.5mm pigtails for the connectors this way I can use it for SSB or plug in a key and still use the speaker in the mic.

[@raydeeoh08]

Just got my mic and wired it up, popped it in the 3d printed case - works a treat! Thanks for the heads up Manuel!

[@chasiu75]

What jack did you use that fits?

[@raydeeoh08]

@@chasiu75 I used two standard 3.5mm stereo plugs with the sleeve connection/wire clamp bent at 90 degrees. You may have to trim this slightly.

[@decibelgeorge]

Thank you Manual for sharing your printing information. I am experimenting with an electret mic and a 1 watt transistor amp built into an old microphone case. Will use your STL files for the connector. Vielen dank.

[@paulhorrox4155]

Thanks for the video and the files Manuel 73!

[@Moselblues]

Thanks Manuel! Now you get me to the point I ordered a 3D printer for me at home. ;-)

[@raydeeoh08]

Love it! Going to do this too.

[@MrVertigo1971]

Great Video, great Idea! I will order such an Mike, and see if I can build two adapter cables, to connect it to the (tr)uSDX. That way, I can still use it with any other Retevis and/or Anytone Device.

[@soxxz2028]

great video! i had the same idea of using this active mic with the radio. seems that it works then

[@dl2man]

I´m impressed by its performance so far !

[@jamesmihalcik1310]

Perfect! Thanks for this.

[@kennethblackwell1137]

nicely done, Manuel..!!!!

[@josephmalek6541]

I recently bought a Retevis HK008 and converted it for use with the (tr)usdx per the information on the RADIO PREPPERS KZbin channel. The speaker worked great but the PTT was always at Tx. I double checked the wiring and it was OK. Another newer commenter on RADIO PREPPERS also had the same issue. It is possible the newer versions of the HK008 changed something that make them not compatible with the conversion???

[@dl2man]

That´s absolutely possible, that they changed the wire colors.... I have no idea. I measured it, what was connected where, before I came up with my wiring.

[@josephmalek6541]

@@dl2man Hi Manual: I buzzed the two 3.5mm connectors I added per the (tr)usdx pinout to the Retevis circuit board solder connections which are marked. They were OK. Using a voltmeter the PPT lead was at 0.02V without the key switch on the Retevis pressed. The LED was red (I believe the LED was red when powered up out of the box without being plugged in). I could not debug the Retevis circuit board easily(traces running under components) so I put it aside and going in a different direction. Thanks, just wanted people to know this might not be an easy thing.

[@martymctry20]

Hey where did u get hk008? Just tried amazon, ali and bg... 73 df7ed

[@KF0KDE]

Sehr gut! I bought your radio now you have me wanting a 3D printer. 😂

[@dl2man]

That´s the whole purpose of me showing this: I want us hams to be makers and use the tools that are available cheaply ! 73 Manuel; DL2MAN

[@martymctry20]

Hi, can't get the mike anywhere. Any other mic/active speaker combinations known to work?

[@martymctry20]

Same here in Germany

[@johneyre4986]

Another Great Project. I bought the mic, printed the parts (at 102% to get that little bit more clearance from my 0.4 extruder), wired it up using a set of TRRS plugs, and once checked, glued it together - works great, makes a big difference to reception. I previously made the battery holder and the Linked Dipole (that is my best antenna - using the thin 316 coax). Also made lots of end-fed transformers. Great for FT8 and the like, but could use a small amp for SSB in my remote location on the west coast of Canada - any recommendations? THANKS!

[@dl2man]

Thanks for the feedback !

[@Mandarin110631]

KK7SWB- Hi Manuel- when i calibrate manually by just doing it through the menu, i am still one to two kHz off as i can see from my other radios- is this normal?

[@mathiaskrueger3336]

Hi, Manuel, ist es möglich ein Exemplar des Steckergehäuses irgendwo zu bestellen? 73s HB9DOU

[@dl2man]

Hi, ist nicht wirklich vorgesehen. Jeder mit einem 3D Drucker kann Dir das Teil in kurzer Zeit drucken. Dateien sind online..... Ist sehr einfach zu drucken und auch nur ein sehr kurzer Druck. 73 Manuel; DL2MAN

[@JohnBowman7702]

Sorry for the newbie question, but i am stuck on where the red and black wires are soldered

[@dl2man]

Please watch the "Assembly" Section of the video over and over again. I´m showing and explaining exactly where to solder what. Use a Multimeter to find out which solder point is Tip Ring or Sleeve, as this variates from supplier to supplier.

[@pascalm.1237]

Awesome mod... are these screwable phone jacks with thread?

[@dl2man]

The threads are for the original housing. I´m not using them in my Design, exept for caging them to limit the axial movement.

[@mikestokes235]

Very good!

[@om0wt]

Hi Manuel. Will you publish STL?

[@dl2man]

Sure: dl2man.de/wp-content/uploads/2022/10/external-mic-plug.zip

[@om0wt]

@@dl2man Thanks as always! :)

[@tysonherzog8010]

Deos the radio come with a rechargeable battery? And Deos rhe radio have a tuner inside

[@holotape]

No and no

[@ranchosinnombreannjimmy8427]

A tutorial of how to use the controls on tr usdx

[@dl2man]

You mean like this kzbin.info/www/bejne/nYiYo2iAhreVq9U ?

[@d3w4yn3]

What kind of glue is that? When I print in PLA I can't get superglue to stick to it. Great video by the way!!!

[@dl2man]

Super Glue. But I´m printing with PETG.

[@williamsohn9772]

I wonder if Sunny would be willing to print the part for those of us that are too old to mess with the new printer technology. I may be an extra class but one of the reasons this totally disabled veteran is messing around with this transceiver is the affordability factor. Not that it isn't totally Kool rad whatever, I fantasized about a transceiver like this when I was a boy!! Keep up the good work. I can't convey how much I appreciate both manual and Guiddo's effort and the personal sacrifices being made for the benefit of their fellow mankind. God bless you both. I apologize if I have misspelled names. 73's. DE KF7EJ

[@dl2man]

Hi, I´m sure, she would do it if it makes sense. But my suggestion would be: Ask someone with a printer nearby to print it for you. The whole benefit of 3D Printing is: You don´t need to have it printed in china and ship it around the worlds. You take the files and print it in house, or let the neighbors son print it for you.... If you don´t find someone, you can ask in my community for someone nearby you (forum/facebook/youtube), that would be willing to help you out for beer money ;) 73 Manuel; DL2MAN

[@abrahamnehemias-xt2qd]

At least here in the states a lot of the local libraries have 3D printing services

[@kruyerl]

@@dl2man I'd be willing to set it up on eBay to ship within the US for "beer money" if you would grant me permission. I have a printer that has capacity to produce these.

[@dl2man]

@@kruyerl do that !

[@hankaajindrich8622]

I can recommend OBS Studio for screen and audio recording, it's free and works great.

[@dl2man]

Yes, I use that, but this Video was just a quick and dirty one, documenting a small project. Sorry for the worse quality of screen recordings....

[@felixsaalfrank6259]

👍👍👍

[@QRP.lifestyle]

👍

[@johnwest7993]

I just want to know everything you know. :)

[@dl2man]

You have 41 years of time ? ;)

[@CT2GMH]

An interesting subject will be the construction of a small 100w amplifier to use together with qrp equipment

[@dl2man]

Thanks for the suggestion. But unfortunately I have no expertise in QRO PA construction...