headset boost

I've attacked an old cordless phone and wired in a headset so that I can use
it hands free. I simply disconnected the phones mic and speaker and wored
them up to a headset socket.
While the mic works well; other party can hear me, I find that the earpiece
of the headset, even with the volume up loud is not quite enough if there is
any background noise.
So what I want to do is boost the phones speaker volume slightly so that the
volume control on the headset has some range to it. I thought that a garden
variety transistor might do it, along with a resistor or two.
Problem is - I dont know how - I can only follow instructions when it comes
to this sort of thing - so I am hoping that someone here will provide some
help.

Thanks in advance.
Daniel Inston

 

You won't like this advice but, throw away the mess you've made and
buy a cheap commercial headset. After everyone you talk to on it
complains about the poor quality of the sound, resume using a handset
or buy a much better headset.

By the way, I've recently discovered a way to more easily move things
from place to place that employs a section of tree trunk with a hole
in the center and a stick through the hole.

 

By the way, I've recently discovered a way to more easily move things

C'mon. David Wood is just an alias, right?
Your real name is Gallagher isn't it?

 

No, but sometimes watching people do things in the most difficult and
expensive way they know while asking others to advise them of even
more difficult and expensive variations is a bit much for me and my
sense of humor kicks in.

 

The handsets I've worked with use a 150 ohm element, so your problem
is probably that the headset you're using is a 16 ohm headset, and
needs a matching transformer to match it to the 150 ohm output. This
can be a very small transformer, and using a transformer means you
won't have to waste any battery current.

If you must use a device, try the LM386, which is available at Radio
Snack. It needs a minimum of parts and doesn't need much current.

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X-No-Archive: yes

Well, my Dad is hard of hearing and he found it irritating to switch
to T-coil and adjust the volume everytime there was a call for him. I
fitted a 386 inside the base instrument of the nomal telephone and now
my Dad is making more calls without bothering with his aid!!

HTH