Handset telephone amplifier

S

SBS

Guest
Hi, I have to build a telephone handset amplifier
which has to amplify both the speaker on the ear
(incoming sound) and the mic (outgoing voice).
It has to be powered by 3xAA/AAA batteries
or 1x9V battery.

Can you please suggest me a tested scheme?

Rgeards.
 
"SBS" <no.spam@me> wrote in message
news:46ec1d1f$0$36442$4fafbaef@reader5.news.tin.it...
Hi, I have to build a telephone handset amplifier
which has to amplify both the speaker on the ear
(incoming sound) and the mic (outgoing voice).
It has to be powered by 3xAA/AAA batteries
or 1x9V battery.

Can you please suggest me a tested scheme?
Click to expand...
Sure. Use amplifiers. Homework?
 
Charles (charlesschuler@comcast.net) ha scritto:

::: Hi, I have to build a telephone handset amplifier
::: which has to amplify both the speaker on the ear
::: (incoming sound) and the mic (outgoing voice).
::: It has to be powered by 3xAA/AAA batteries
::: or 1x9V battery.
:::
::: Can you please suggest me a tested scheme?
::
:: Sure. Use amplifiers. Homework?

Homework? Absolutely not. I need an amplifier for the
telephone because my parents are becoming deaf.

Can you please suggest me a good scheme?
 
SBS wrote:
Homework? Absolutely not. I need an amplifier for the
telephone because my parents are becoming deaf.
Click to expand...
Multi-posting is just as ignorant
http://www.google.com/search?q=cache:qHhBKJ-sXKYJ:en.wikipedia.org/wiki/Cross-post+adequately.answered+corrected+with.commas+individually+Disclaimers+*-*-*-marked-as-Read-in-ALL-*-groups+Newsgroups.line
as not knowing when to BUY a solution.
http://www.google.com/froogle?scoring=p&price=between&price1=1&q=intitle:Telephone-handset-amplifier&num=100
 
JeffM (jeffm_@email.com) ha scritto:

::: Homework? Absolutely not. I need an amplifier for the
::: telephone because my parents are becoming deaf.
::
:: Multi-posting is just as ignorant

Thank you, Einstein. Rude answer is just as ignorant.

:: as not knowing when to BUY a solution.

I live in Europe therefore the delivery cost would be more
expensive than the device itself.
 
On Sun, 16 Sep 2007 01:54:44 +0200, "SBS" <no.spam@me> wrote:

::: Hi, I have to build a telephone handset amplifier
::: which has to amplify both the speaker on the ear
::: (incoming sound) and the mic (outgoing voice).
::: It has to be powered by 3xAA/AAA batteries
::: or 1x9V battery.
:::
::: Can you please suggest me a tested scheme?
::
:: Sure. Use amplifiers. Homework?

Homework? Absolutely not. I need an amplifier for the
telephone because my parents are becoming deaf.

Can you please suggest me a good scheme?
Click to expand...


Don't re-invent the wheel, the link below is better and cheaper than
anything you could make and its close to home.

http://www.maplin.co.uk/Module.aspx?ModuleNo=97462&criteria=telephone%20amplifer&doy=16m9

Good Luck

* * *
Christopher

Temecula CA.USA
http://www.oldtemecula.com
 
"SBS" <no.spam@me> wrote:
Charles (charlesschuler@comcast.net) ha scritto:

::: Hi, I have to build a telephone handset amplifier
::: which has to amplify both the speaker on the ear
::: (incoming sound) and the mic (outgoing voice).
::: It has to be powered by 3xAA/AAA batteries
::: or 1x9V battery.
:::
::: Can you please suggest me a tested scheme?
::
:: Sure. Use amplifiers. Homework?

Homework? Absolutely not. I need an amplifier for the
telephone because my parents are becoming deaf.

Can you please suggest me a good scheme?
Click to expand...
Buy one. They are cheap.

--
Floyd L. Davidson <http://www.apaflo.com/floyd_davidson>
Ukpeagvik (Barrow, Alaska) floyd@apaflo.com
 
"SBS" (no.spam@me) writes:
Charles (charlesschuler@comcast.net) ha scritto:

::: Hi, I have to build a telephone handset amplifier
::: which has to amplify both the speaker on the ear
::: (incoming sound) and the mic (outgoing voice).
::: It has to be powered by 3xAA/AAA batteries
::: or 1x9V battery.
:::
::: Can you please suggest me a tested scheme?
::
:: Sure. Use amplifiers. Homework?

Homework? Absolutely not. I need an amplifier for the
telephone because my parents are becoming deaf.

Can you please suggest me a good scheme?


Then you don't need a microphone. Their voices aren't getting
Click to expand...
weak, it's their hearing.

Check with your telephone company. They may still offer telephones
with built in amplifiers for those with hearing loss.

Find a local support group for those with hearing loss, and likely
they can point you to local commercial products. Little amplifiers
that fasten over the telephone receiver, and amplify the incoming
sounds, just what they need.

Or got to a hearing aid dealer, and ask them about such products.

If they are losing their hearing, they likely would benefit from
hearing aids, which work for everything. Many/most hearing aids
include an inductive coupler, precisely for use with telephones
(it picks up the signal from the telephone receiver but the hearing
aid stays in place to amplify the signal and do the desired frequency
shaping). Though, I have the impression that at least some
third party telephones nowadays may use a transducer for the receiver
that has no inductive field to use with those inductive pickups. Either
that, or they aren't as well designed as traditional phones, so the
layout is not optimum for inductive pickup.

Some telephones now are designed for use with headsets, so I gather.
That makes it really easy to insert a small audio amplifier between
the output of the phone and the headphone(s) in the headset.

Michael
 
christopher@NOSPAMoldtemecula.com wrote:

:: Don't re-invent the wheel, the link below is better and cheaper than
:: anything you could make and its close to home.
::
::
http://www.maplin.co.uk/Module.aspx?ModuleNo=97462&criteria=telephone%20amplifer&doy=16m9


Thank you, but it's too expensive (20Ł -> 30EUR -> 40$).
It costs more than the phone! ;-)
 
Michael Black (et472@FreeNet.Carleton.CA) ha scritto:

:: Some telephones now are designed for use with headsets, so I gather.
:: That makes it really easy to insert a small audio amplifier between
:: the output of the phone and the headphone(s) in the headset.


Thank you for your advices.
 
SBS wrote:
christopher@NOSPAMoldtemecula.com wrote:

:: Don't re-invent the wheel, the link below is better and cheaper than
:: anything you could make and its close to home.
::
::
http://www.maplin.co.uk/Module.aspx?ModuleNo=97462&criteria=telephone%20amplifer&doy=16m9

Thank you, but it's too expensive (20Ł -> 30EUR -> 40$).
It costs more than the phone! ;-)
Click to expand...

Your parents aren't worth the $40? Shame on you.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
Michael A. Terrell (mike.terrell@earthlink.net) ha scritto:

::: Thank you, but it's too expensive (20Ł -> 30EUR -> 40$).
::: It costs more than the phone! ;-)
::
::
:: Your parents aren't worth the $40? Shame on you.

I have a lot of components and If I find a good scheme then
I can build a device like that.
 
"SBS"
Can you please suggest me a tested scheme?
Click to expand...

** Do you want someone to supply you with a " scheme " or a " schematic "
????

The correct abbreviation for "schematic " is " schem ".




........ Phil
 
On Sun, 16 Sep 2007 23:13:56 +0200, "SBS" <no.spam@me> wrote:

Michael A. Terrell (mike.terrell@earthlink.net) ha scritto:

::: Thank you, but it's too expensive (20Ł -> 30EUR -> 40$).
::: It costs more than the phone! ;-)
::
::
:: Your parents aren't worth the $40? Shame on you.

I have a lot of components and If I find a good scheme then
I can build a device like that.
Click to expand...
Yes, but it seems you'll have to enroll in some courses and learn how
to design the circuits for yourself. It's probably quicker and
definitely less expensive to buy the damn twenty-pound device.

--
Al in St. Lou
 
Phil Allison (philallison@tpg.com.au) ha scritto:

:: The correct abbreviation for "schematic " is " schem ".

Thanks.
 
"Phil Allison" (philallison@tpg.com.au) writes:
"SBS"

Can you please suggest me a tested scheme?



** Do you want someone to supply you with a " scheme " or a " schematic "
????

But people did provide him with a variety of schemes. He refused
Click to expand...
at least some of them. But if he doesn't have a scheme in the
first place, he's hardly ready for a schematic.

Though actually "schematic" derives from "scheme".

Michael
 
Michael Black (et472@FreeNet.Carleton.CA) ha scritto:


:: But people did provide him with a variety of schemes.
:: He refused at least some of them. But if he doesn't have
:: a scheme in the first place, he's hardly ready for a schematic.
::
:: Though actually "schematic" derives from "scheme".


Nobody has given to me a scheme ;-)
 
"Michael Black"
"Phil Allison"
"SBS"

Can you please suggest me a tested scheme?


** Do you want someone to supply you with a " scheme " or a " schematic "
????


But people did provide him with a variety of schemes. He refused
at least some of them. But if he doesn't have a scheme in the
first place, he's hardly ready for a schematic.
Click to expand...
** Bollocks.

Having a suitable schematic gives you a scheme.


Though actually "schematic" derives from "scheme".
Click to expand...

** Have a bad autism day - I see.




....... Phil
 
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