I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?

"EricKit" wrote in message
oups.com...
I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?


how about finding a way to build the worlds first pizoelectric subwoofer?


an electrodynamic microphone & pocket watch degauser?


a solar powered wireless mic?

"EricKit" wrote in message
oups.com...

I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?


** If someone here DID have a practical and useful design -

why the **** would he tell a useless Googlegroping POS like YOU about it on
a NG ?

When he could patent it and make nice money out of it.




........ Phil

On Tue, 9 May 2006 14:29:00 +1000, "Phil Allison"
wrote:


"EricKit" wrote in message
roups.com...

I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?


** If someone here DID have a practical and useful design -

why the **** would he tell a useless Googlegroping POS like YOU about it on
a NG ?

When he could patent it and make nice money out of it.

Asitappens, I *did* write a patent application a few years back, for a
novel speaker design which was basically a vertical sausage-shaped
balloon with lots of wires strung along it, relying on emf to expand
and contract the surface area and provide an omnidirectional line
source. It never saw the light of day commercially.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

"Stewart Pinkerton"


Asitappens, I *did* write a patent application a few years back, for a
novel speaker design which was basically a vertical sausage-shaped
balloon with lots of wires strung along it, relying on emf to expand
and contract the surface area and provide an omnidirectional line
source.


** Sounds like a complete WANK to me.


It never saw the light of day commercially.


** The government censors got wind of it - right ?





....... Phil

Phil, grow up. I'm not looking for something never used before, it
could already be patented and made. I just want to build something for
myself that's unique.

"EricKit" wrote in message
ups.com...


Phil, grow up.


** WELL FUUUCK YOU - ASSHOLE !!!


I'm not looking for something never used before, it
could already be patented and made.


** Anyone see a slight contradiction in the above ????


I just want to build something for
myself that's unique.


** Pinko's giant, blow up, electric dick seems tailor made then.

Just send him an email and he will wank you one off.





........ Phil

Phil, grow up.

** WELL FUUUCK YOU - ASSHOLE !!!


That is a priceless pair of lines. Classic Usenet.

"EricKit" wrote in message
oups.com

I'm looking for ideas on a homemade driver. The only
options I can think of is a cone speaker, which would be
hard to make or an Electrostatic speaker which someone I
know is already doing so that's out of the picture. That
would be easier to make with some flat magnets and wires.
Do you all have any other unique designs?

Recipies for home-made drivers that I've seen work:

(1) Electrostats. Easy to build, harder to drive

(2) Ribbons and Heil-type drivers

(3) Cone speakers made by modifying an existing driver*

* This can range from simple things like cutting off a whizzer cone or
adding ballast to make a lower-efficiency driver with deeper bass, to
starting out with a collection of raw voice coil assemblies, spiders,
diaphragms, and surrounds; and mixing and matching to suit.

In article , "Arny Krueger" wrote:
"EricKit" wrote in message
roups.com

I'm looking for ideas on a homemade driver. The only
options I can think of is a cone speaker, which would be
hard to make or an Electrostatic speaker which someone I
know is already doing so that's out of the picture. That
would be easier to make with some flat magnets and wires.
Do you all have any other unique designs?

Recipies for home-made drivers that I've seen work:

(1) Electrostats. Easy to build, harder to drive

(2) Ribbons and Heil-type drivers

(3) Cone speakers made by modifying an existing driver*

* This can range from simple things like cutting off a whizzer cone or
adding ballast to make a lower-efficiency driver with deeper bass, to
starting out with a collection of raw voice coil assemblies, spiders,
diaphragms, and surrounds; and mixing and matching to suit.

I started a ribbon driver but never finished because I could not
find a good source for ribbon. I still have over $100 in
magnets attached to steel plates. I also fooled with an
electrostatic ribbon type using packing tape. Packing
tape is permanately polarized so all you need is two plates
driven with an audio source. The tape is too heavy though and if
you try taking the glue off, off comes the charge.

greg

EricKit wrote:
I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?

Electrostatic far easier to make. All you need is two perf grille metal
sheets , plastic film rubbed with graphite, polyester thread, and audio
transformer and a hv ac transformer plus a bunch of diodes and caps. Google
it.

However a dynamic driver would be a minefield to enter to try and build with
everyday handyman parts....


geoff

"Geoff"

Electrostatic far easier to make. All you need is two perf grille metal
sheets, plastic film rubbed with graphite, polyester thread, and audio
transformer and a hv ac transformer plus a bunch of diodes and caps.


** Does smearing graphite onto plastic sheet reliably create the needed
high resistance coating?




.......... Phil

Geoff spake thus:

EricKit wrote:

I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?

Electrostatic far easier to make. All you need is two perf grille metal
sheets , plastic film rubbed with graphite, polyester thread, and audio
transformer and a hv ac transformer plus a bunch of diodes and caps. Google
it.

Got any good links? When I google for homemade/DIY electrostatic
speakers, all I get is a bunch of irrelevant nonsense.


--
Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"

On Tue, 9 May 2006 22:43:19 +1000, "Phil Allison"
wrote:

"Stewart Pinkerton"

Asitappens, I *did* write a patent application a few years back, for a
novel speaker design which was basically a vertical sausage-shaped
balloon with lots of wires strung along it, relying on emf to expand
and contract the surface area and provide an omnidirectional line
source.

** Sounds like a complete WANK to me.

So does everything else to you Phil, when you don't have the brains to
understand how things work.

It never saw the light of day commercially.

** The government censors got wind of it - right ?

Nope, the inventor couldn't get any backing, and the efficiency of the
prototype was woefully low.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Wed, 10 May 2006 15:16:31 +1000, "Phil Allison"
wrote:


"Geoff"

Electrostatic far easier to make. All you need is two perf grille metal
sheets, plastic film rubbed with graphite, polyester thread, and audio
transformer and a hv ac transformer plus a bunch of diodes and caps.


** Does smearing graphite onto plastic sheet reliably create the needed
high resistance coating?

That's what Martin Logan *used* to do, but they had serious problems
with it.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

"Stewart Pinkerton"


Asitappens, I *did* write a patent application a few years back, for a
novel speaker design which was basically a vertical sausage-shaped
balloon with lots of wires strung along it, relying on emf to expand
and contract the surface area and provide an omnidirectional line
source.

** Sounds like a complete WANK to me.

So does everything else to you Phil,



** It was a joke - ****wit.

You are one dumb as dog **** moron .





....... Phil

"Stewart Pinkerton"

** Does smearing graphite onto plastic sheet reliably create the needed
high resistance coating?

That's what Martin Logan *used* to do, but they had serious problems
with it.


** How uninformative.




...... Phil

"David Nebenzahl"

Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"


** In what ?

A pit of lime ??




...... Phil

Phil Allison wrote:
"Geoff"

Electrostatic far easier to make. All you need is two perf grille
metal sheets, plastic film rubbed with graphite, polyester thread,
and audio transformer and a hv ac transformer plus a bunch of diodes
and caps.


** Does smearing graphite onto plastic sheet reliably create the
needed high resistance coating?

Yep. You don't smear it but rub it on until pretty much vanished - just a
slight gray stain.

geoff

"Geoff@home"

** Does smearing graphite onto plastic sheet reliably create the
needed high resistance coating?

Yep. You don't smear it but rub it on until pretty much vanished - just a
slight gray stain.



** Interesting ......




........ Phil

On Wed, 10 May 2006 18:22:16 +1000, "Phil Allison"
wrote:


"Stewart Pinkerton"

** Does smearing graphite onto plastic sheet reliably create the needed
high resistance coating?

That's what Martin Logan *used* to do, but they had serious problems
with it.


** How uninformative.

Only to a cretin like you, Phil. Those early MLs were hygroscopic as
hell, so the sound changed with the weather, and the graphite surface
was uneven, leading to random distortions, depending on the graphite
pattrern on your particular example. No such thing as a matched pair
with these babies. The sound of the CLS was however quite magical in
the midrange, which forgives a lot of problems. Pretty much like your
fave rave Quad 57s, come to think of it...........
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Posted Via Usenet.com Premium Usenet Newsgroup Services
----------------------------------------------------------
** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
http://www.usenet.com

On Wed, 10 May 2006 18:23:25 +1000, "Phil Allison"
wrote:


"David Nebenzahl"

Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"


** In what ?

A pit of lime ??

According to the quote, a bathtub of acid. Dumb ocker..........
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Posted Via Usenet.com Premium Usenet Newsgroup Services
----------------------------------------------------------
** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
http://www.usenet.com

On Wed, 10 May 2006 21:27:18 +1000, "Phil Allison"
wrote:


"Geoff@home"

** Does smearing graphite onto plastic sheet reliably create the
needed high resistance coating?

Yep. You don't smear it but rub it on until pretty much vanished - just a
slight gray stain.



** Interesting ......

But neither reliable nor repeatable, which is why Martin-Logan
switched to plasma-deposited metal films on the diaphragms of their
later models.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Posted Via Usenet.com Premium Usenet Newsgroup Services
----------------------------------------------------------
** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
http://www.usenet.com

Phil Allison spake thus:

"David Nebenzahl"

Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"

** In what ?

A pit of lime ??

Nobody asked you, asshole.

FOAD.


--
Pierre, mon ami. Jetez encore un Scientologiste
dans le baquet d'acide.

- from a posting in alt.religion.scientology titled
"France recommends dissolving Scientologists"

In .com, on 05/08/06

at 06:32 PM, "EricKit" said:

I'm looking for ideas on a homemade driver. The only options I can
think of is a cone speaker, which would be hard to make or an
Electrostatic speaker which someone I know is already doing so that's
out of the picture. That would be easier to make with some flat
magnets and wires. Do you all have any other unique designs?

If you want something truly unique, work on a flame speaker.

-----------------------------------------------------------
spam:
wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13 (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
-----------------------------------------------------------

Barry Mann wrote:

If you want something truly unique, work on a flame speaker.

That's not truly unique as several examples already exist.

--
Eiron

No good deed ever goes unpunished.

Eiron wrote:
Barry Mann wrote:

If you want something truly unique, work on a flame speaker.

That's not truly unique as several examples already exist.

What would be truly unique is a flame or plasma speaker that
actually has some of the wonderful and magic properties
claimed for such devices!

On 11 May 2006 04:19:21 -0700, wrote:


Eiron wrote:
Barry Mann wrote:

If you want something truly unique, work on a flame speaker.

That's not truly unique as several examples already exist.

What would be truly unique is a flame or plasma speaker that
actually has some of the wonderful and magic properties
claimed for such devices!

IIRC, the old Ionofane (as used in one of the very first B&W speakers)
was an excellent performer - although how long you'd survive the ozone
was perhaps arguable!

--

Stewart Pinkerton | Music is Art - Audio is Engineering

Stewart Pinkerton wrote:

What would be truly unique is a flame or plasma speaker that
actually has some of the wonderful and magic properties
claimed for such devices!

IIRC, the old Ionofane (as used in one of the very first B&W speakers)
was an excellent performer - although how long you'd survive the ozone
was perhaps arguable!

Well, no. It may have been the best of that sort of thing, but it
was flawed. If nothing else, to try to get ANY usable efficiency
out of it, they had to horn-load it, and in doing so, they
intorduced all the flaws of a horn such as substantial upper-end
bandwidth limitation due to throat size, no to mention that there
was no real attempt to acoustically match the horn to the driver
anyway.

Because of the horn and the resulting bandwidth limt, it COULD
not have the "amazing" transient response oft claimed for such
drivers. IN fact, because the region responsible for producing
sound was fairly large, that fact alone limited the transient
reponse.

Now add the problems of the coupling transformer, ...

In article .com,
wrote:

Stewart Pinkerton wrote:

What would be truly unique is a flame or plasma speaker that
actually has some of the wonderful and magic properties
claimed for such devices!

IIRC, the old Ionofane (as used in one of the very first B&W speakers)
was an excellent performer - although how long you'd survive the ozone
was perhaps arguable!

Well, no. It may have been the best of that sort of thing, but it
was flawed. If nothing else, to try to get ANY usable efficiency
out of it, they had to horn-load it, and in doing so, they
intorduced all the flaws of a horn such as substantial upper-end
bandwidth limitation due to throat size, no to mention that there
was no real attempt to acoustically match the horn to the driver
anyway.

Because of the horn and the resulting bandwidth limt, it COULD
not have the "amazing" transient response oft claimed for such
drivers. IN fact, because the region responsible for producing
sound was fairly large, that fact alone limited the transient
reponse.

Now add the problems of the coupling transformer, ...

And an absolutely stunning amount of distortion. Somewhere, I have a
photograph of an audio spectrum analyzer screen, showing a whole lot of
spikes where there shouldn't be any...

Isaac

I started a ribbon driver but never finished because I could not
find a good source for ribbon. I still have over $100 in
magnets attached to steel plates. I also fooled with an
electrostatic ribbon type using packing tape. Packing
tape is permanately polarized so all you need is two plates
driven with an audio source. The tape is too heavy though and if
you try taking the glue off, off comes the charge.

greg

There is an article on the web about a home made ribbon. The guy used
ordinary aluminum foil that he cut into a long ribbon and crimped with a
pair of intermeshed gears.

http://ldsg.snippets.org/ALSR/

James. )

Stewart Pinkerton wrote:
On Wed, 10 May 2006 21:27:18 +1000, "Phil Allison"
wrote:


"Geoff@home"

** Does smearing graphite onto plastic sheet reliably create the
needed high resistance coating?

Yep. You don't smear it but rub it on until pretty much vanished - just a
slight gray stain.



** Interesting ......


But neither reliable nor repeatable, which is why Martin-Logan
switched to plasma-deposited metal films on the diaphragms of their
later models.


A bit like window tint film without the pressure sensitive glue,
you have a thin metallisation of aluminium or titanium you can
see through that has been sputtered onto the mylar in a vacuum.

GregS wrote:
In article , "Arny Krueger" wrote:

Do you all have any other unique designs?

Recipies for home-made drivers that I've seen work:

Take a look here.

http://home5.inet.tele.dk/f-hammer/

Andre Schmeets