Original Townsend Brown Speaker

A forum to discuss, to dream, to engineer, to research, to offer up information and a place to share.
Forum rules
Act like an adult, no prepubescent children, even if it means an argument but do so with a calm demeanor.

Original Townsend Brown Speaker

Postby pladuim » Sun Nov 02, 2014 8:34 pm

Hello all!

Christmas came early this year for me! I was given an original speaker built by the hands of Townsend Brown. I was so excited and thankful to receive such a gift. My plan is to see if this speaker actually works. I would like for everyone that is interested to put in their 2 cents worth and be apart of the project. I'm currently away from the speaker, but here are a few pictures that I have right now. I plan to post more detailed pictures of the speaker once I get back to it. I just wanted to share with everyone what I currently have and what I'm planning to do. More details to come!! I welcome any advice on parts and anything else that may be needed to make the speaker work.

Pladuim
Attachments
V__103A.jpg
V__4614.jpg
User avatar
pladuim
Commander
 
Posts: 763
Joined: Sun Sep 27, 2009 8:31 pm

Re: Original Townsend Brown Speaker

Postby StarCat » Sun Nov 02, 2014 9:08 pm

I don't know what I'm looking at, but I will definitely applaud any progress you make with your work.

Cat
User avatar
StarCat
Commander
 
Posts: 540
Joined: Sun Feb 02, 2014 7:35 pm

Re: Original Townsend Brown Speaker

Postby kevin » Mon Nov 03, 2014 3:46 am

That is not what I expected it to look like...surprised.
Kevin
kevin
The Hobbit
 
Posts: 2901
Joined: Tue May 05, 2009 1:24 pm

Re: Original Townsend Brown Speaker

Postby DavidG » Mon Nov 03, 2014 8:06 am

kevin wrote:That is not what I expected it to look like...surprised.
Kevin

I second that....looks like a sectioned aluminum tube with a bare coil inside it....but on this iPad I can't get close enough to see details...definitely not what I would have expected either.

Is this a section of the speaker, or the entire device, Pladuim?

Cheers!
User avatar
DavidG
Lt. Commander
 
Posts: 257
Joined: Tue Jun 03, 2014 1:27 pm

Re: Original Townsend Brown Speaker

Postby pladuim » Mon Nov 03, 2014 8:24 am

Hello everyone!

I was a bit surprised also, didn't expect it to look as it does. It is a hollow aluminum tube with a wire coil in the center. I have no idea if it ever produced any sound or not. My goal is to get all of the things needed to test it out.

Thanks for your words of encouragement cat!

More pictures and details to come!

Pladuim
User avatar
pladuim
Commander
 
Posts: 763
Joined: Sun Sep 27, 2009 8:31 pm

Re: Original Townsend Brown Speaker

Postby DavidG » Mon Nov 03, 2014 8:55 am

Took a closer look on the big screen, Pladuim, and it is just that..simple yet mysterious! ;)

Are there any bare spots on the coil, or is it fully insulated ?

If it is fully insulated, perhaps using induction from the coil to the tubing was how Brown may have pondered eliminating the ozone issue. I would imagine it would eliminate it fully, but I have only heard a tiny peep from inductive coils and transformers I have worked with..I wonder how he got it to blast music as such a volume?

Also, I would have thought this might be one strip of an array of them that would have constituted a device proper, or then again, it couldve been an experimental version of the speaker, made so simple to save time and investment.

Are you going to build a circuit to modulate an mp3 signal onto an hv current? Like all the arc speakers we see on youtube and in all the rich guy's sound systems.

Im excited to see what happens when you hit it with some modulated hv..cool indeed!

Best of Luck!

Cheers!
User avatar
DavidG
Lt. Commander
 
Posts: 257
Joined: Tue Jun 03, 2014 1:27 pm

Re: Original Townsend Brown Speaker

Postby pladuim » Mon Nov 03, 2014 9:15 am

David,

Yes, wire coil is insulated, and yes, I plan to get the HV components and everything else needed to see if it actually produces sound.

Pladuim
User avatar
pladuim
Commander
 
Posts: 763
Joined: Sun Sep 27, 2009 8:31 pm

Re: Original Townsend Brown Speaker

Postby DavidG » Mon Nov 03, 2014 10:36 am

Wishing you the best, Pladuim!

D
User avatar
DavidG
Lt. Commander
 
Posts: 257
Joined: Tue Jun 03, 2014 1:27 pm

Re: Original Townsend Brown Speaker

Postby Mikado14 » Thu Nov 06, 2014 12:09 pm

Just to simplify this a bit.

For those that can visualize a circuit, bear with me.

Beginning at a positive point of a power supply and travelling toward the negative source, it will travel toward a High Voltage Supply, The output of the supply references to the ground state of the first supply and is the completion of that current path. The High Voltage supply output positive travels to the input of the speaker. The output of the speaker travels to the secondary of a tranformer and then to the ground state of the High Voltage supply. The primary of the transformer is the input of the signal which couples to the secondary and will cause the modulation of the current/voltage which in turn causes the variation of the EHD output produced by the speaker. It is a series circuit of the speaker and the secondary of the transformer and thus Kirchoff's law for series is valid.

Mikado
The thing about Inner Circles is that they are like Boxes - difficult to think outside of them.

"When the Debate is Lost, Slander is the Tool of the Loser" SOCRATES

“There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
― Søren Kierkegaard
User avatar
Mikado14
Commander
 
Posts: 2054
Joined: Sat Jul 09, 2011 10:38 am
Location: Located where I want to be...or not...depends on the day.

Re: Original Townsend Brown Speaker

Postby Soloma » Tue Nov 11, 2014 4:22 pm

Hiya Plad, glad to see you around. I am very excited for you and looking forward to seeing how this plays out!
User avatar
Soloma
Commander
 
Posts: 599
Joined: Fri Feb 26, 2010 12:18 am

Next

Return to The Open Door



Who is online

Users browsing this forum: No registered users and 2 guests

cron