Handset telephone amplifier

Sure. Use amplifiers. Homework?

Charles ( snipped-for-privacy@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?

Multi-posting is just as ignorant

JeffM (jeffm snipped-for-privacy@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.

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

Good Luck

• * * Christopher

Temecula CA.USA

Buy one. They are cheap.

Then you don't need a microphone. Their voices aren't getting 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

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

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

Michael Black ( snipped-for-privacy@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.

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

Michael A. Terrell ( snipped-for-privacy@earthlink.net) ha scritto:

::: Thank you, but it's too expensive (20£ -> 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"

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

....... Phil

Phil Allison ( snipped-for-privacy@tpg.com.au) ha scritto:

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

Thanks.

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".

Michael

Michael Black ( snipped-for-privacy@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"

Having a suitable schematic gives you a scheme.

...... Phil