V3 Neodymium planar tweeter build (and wrap up)
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- Опубліковано 28 вер 2024
- Neo tweeter V3 complete build and measurements. my alternative to the Dayton PT6-Mini and my previous design , since i wanted to have a tiny planar to cross low :) with a 6dB filter only on the cheap :)
Well measurement and wrap up starts here: • V3 Neodymium planar tw...
I know printing these might not be for everyone :(. but if you really want to... you might be able to contact me ?
Stuff needed
- Alu/polyesther laminate
- Hardboard 3mm thick
- 30 x Neo magnets 3x2x30
- CNC, or just a jig saw.
- Xerox solid ink printer or a way of contacting me.
- 3m 30NF glue
- Polyurethane glue
- metal with R3t5 1mm thick
- Patience coffee and maybe a beer
- Tape
- Sponge
- Some wood clamps
- ikea bucket thing
- table salt and coper sulfate
maybe some other bits and bobs like foam tape and velt.
The system that plays in the end , uses 2x MHB12 woofers parallel a 3mH coil on the woofers and a 22uF cap with a 3.2 Ohm resistor in series with the tweeter. very easy simple filter... might need some adjusting but for now .... im pretty impressed. i am aiming for a zoom recorder to make some better sounding music videos to do them a tiny bit more justice :(
I have not a clue on what exactly you are doing in this video because I just discovered your channel looking around UA-cam for some information on the ptmini. Saved me from that one ;)
Your channel is super interesting and I will definitely keep watching these videos until I get an idea of how this works
Vincent Koster haha , thanks ! Well try watch some earlier videos tbey might explain a bit more. But it usually it boils down to me making loudspeakers from scratch :) some beter then others and very often just to test an idea
@@joppepeelen you're right. I should probably do some research on the science behind planar tweeters and start watching more of your videos to really get the hang of it :)
Joppe strikes again! Great job broer. Roxy says hi...she likes watching your videos; thinks you're funny or maybe cute (probably both).
hahaha thx mate ! and Roxy , im pretty pleases with the result myself, not happens very often so :)
This tweeter sounds better then the rest.
by the rest you mean the woofers ;) or in general so far :)
Флюс для пайки алюминия!!!))
No clue what your saying
Flux for soldering aluminum !!! yes there is flux to use normal solder tin. the trick is i think acid based. getting the corrosion of the alu and at the same time making sure it does not corrode instant because there is no way oxygen can reach it.
Its size and layers that make its sound better poor? Can you check high en speaker AMT its deeper than ebay and temu. why? layers or?
this is not an AMT its a regular planar magnetic tweeter. flat membrane with magnets behind the coil
Neat! How are the magnets' magnetic fields aligned (vs. current direction)? Is this shown in a previous video?
Uh yes but i made a mistake in that video (althrough it works the same phase would be reversed) you need the left hand rule. Search for speaker motors explained but keep in mind i used the wrong hand :) haha
+Joppe peelen: Thanks for the reply - so are alternate rows of magnets in opposing field direction? or are all the magnets aligned the same way? I find it hard to visualize without drawing it on a piece of paper, hence my confusion. What puzzles me is why it works, given that the tracks follow a meandering pattern rather than simple (concentric) loops.
great job, my compliments
what thickness does the polyester-aluminum laminate have?
Where can I find it?
well thanks ! the polyesther is 12 mic, alu is 9, and 2 mic glue layer. it is rahter hard to find i only found it bulk and you have to have a company to buy from them. else if you need just a few meters send me a message.
Muito bom! Parabéns!
well thanks ! :)
Holy Bejeebzsus! Where is your eye and skin protection? waaahhahahah!
Great job. The tweeter sounds great.
very informative sir
thank you sir ! its not the way i make them lately , but i hope it inspired some DIY :)
if the twetter on individual sound is bad
very cool, learned that aluminium flux is a thing and i finally found out what kapton tape is good for. What impedance were you aiming for, and why?
Usualy 3.5 to 4 ohm. :)
porque nenhum foi feito de cobre ao invés de alumínio?
because none were made of copper instead of aluminum?
copper is to heavy
@@joppepeelen tks
Must the perforated metal that supports the magnets be steel (magnetic) or can it be aluminum or stainless steel (non-magnetic)?
well i got tweeters that dont have metal at all, but you lose like potential 2-3 dB on output since you use both sides of the magnet when you use metal. down side might be cavity resonances. thats why my later tweeters dont ahve metal since it was just loud enough to be used in my speaker. then i rahter dump the metal
why not coaxial planarmidrange + supertweeter with no crossover in midrange under 8k to 150hz
well it has a crossover always. since i dont want a huge surface area emit highs (dispersion). at the same time i dont want a small panel try to produce the low end and create all sorts of distortion. :( also there will always be a rising response that i have to counter. so cant do without any crossover components. even the RC kind of style to divide a membrane into pieces is essentially a crossover. something i did not quit got to work :( responses became nasty when trying that weirdly enough. although it should work. it did not for me so far. they way i use the,m now is as less crossover as i can use. one coil that flattens the woofer but after a while drops of slightly, and the tweeter/mid drops on its own then i use a cap to prevent it to ouput to much near resonance. this way has not a very broad band in placing crossovers i must add :) it just has to work out. sometimes it does not :) but it creates an rather even response (not perfect) while using as little as i possible can.
Veri nice experiment and a great result, you made a great job with that ribbon... i re-discovered planar tweeters after more than two decades and they're awesome, clean and fast
Very thank you, mate