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Science Forum Index » Electronics - Basics Forum » volume control for clock...
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| Socrates... |
 Posted: Tue May 20, 2008 7:19 pm |
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Guest
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Hello,
I have an electronic quartz clock with chimes that needs a volume control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is there
any place that makes a inline volume control that I might be able to use to
adjust this so it wouldn't be so loud. Please reply to the group.
Thanks, Marty |
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| Lord Garth... |
| Posted: Tue May 20, 2008 7:31 pm |
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Guest
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"Socrates" <news at (no spam) locutus.org> wrote in message
news:DUJYj.28089$XZ1.1658 at (no spam) fe13.usenetserver.com...
Quote: Hello,
I have an electronic quartz clock with chimes that needs a volume control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is
there any place that makes a inline volume control that I might be able to
use to adjust this so it wouldn't be so loud. Please reply to the group.
Thanks, Marty
Place a variable resistor in parallel with the speaker and adjust until you
get a
reasonable volume. You can then replace the variable resistor with a fix
resistor of similar value. |
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| Michael Black... |
| Posted: Tue May 20, 2008 7:45 pm |
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Guest
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On Tue, 20 May 2008, Lord Garth wrote:
Quote:
"Socrates" <news at (no spam) locutus.org> wrote in message
news:DUJYj.28089$XZ1.1658 at (no spam) fe13.usenetserver.com...
Hello,
I have an electronic quartz clock with chimes that needs a volume control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is
there any place that makes a inline volume control that I might be able to
use to adjust this so it wouldn't be so loud. Please reply to the group.
Thanks, Marty
Place a variable resistor in parallel with the speaker and adjust until you
get a
reasonable volume. You can then replace the variable resistor with a fix
resistor of similar value.
If it's merely a clock, chanced are good that it's a piezoelectric
transducer, ie quite high impedance. So he may need to start with
quite a high value of resistor.
Michael |
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| Lord Garth... |
| Posted: Tue May 20, 2008 7:52 pm |
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Guest
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"Michael Black" <et472 at (no spam) ncf.ca> wrote in message
news:Pine.LNX.4.64.0805202044150.10671 at (no spam) darkstar.example.org...
Quote: On Tue, 20 May 2008, Lord Garth wrote:
"Socrates" <news at (no spam) locutus.org> wrote in message
news:DUJYj.28089$XZ1.1658 at (no spam) fe13.usenetserver.com...
Hello,
I have an electronic quartz clock with chimes that needs a volume
control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is
there any place that makes a inline volume control that I might be able
to
use to adjust this so it wouldn't be so loud. Please reply to the
group.
Thanks, Marty
Place a variable resistor in parallel with the speaker and adjust until
you
get a
reasonable volume. You can then replace the variable resistor with a fix
resistor of similar value.
If it's merely a clock, chanced are good that it's a piezoelectric
transducer, ie quite high impedance. So he may need to start with
quite a high value of resistor.
Michael
He said 2.25" speaker so maybe not! |
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| Michael Black... |
| Posted: Tue May 20, 2008 9:59 pm |
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Guest
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On Tue, 20 May 2008, Lord Garth wrote:
Quote:
"Michael Black" <et472 at (no spam) ncf.ca> wrote in message
news:Pine.LNX.4.64.0805202044150.10671 at (no spam) darkstar.example.org...
On Tue, 20 May 2008, Lord Garth wrote:
"Socrates" <news at (no spam) locutus.org> wrote in message
news:DUJYj.28089$XZ1.1658 at (no spam) fe13.usenetserver.com...
Hello,
I have an electronic quartz clock with chimes that needs a volume
control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is
there any place that makes a inline volume control that I might be able
to
use to adjust this so it wouldn't be so loud. Please reply to the
group.
Thanks, Marty
Place a variable resistor in parallel with the speaker and adjust until
you
get a
reasonable volume. You can then replace the variable resistor with a fix
resistor of similar value.
If it's merely a clock, chanced are good that it's a piezoelectric
transducer, ie quite high impedance. So he may need to start with
quite a high value of resistor.
Michael
He said 2.25" speaker so maybe not!
He did, I missed that.
It seems odd though, because in a straight alarm clock (as opposed to
a clock radio) all the ones I've looked at use a piezoelectric transducer.
Michael |
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| Lord Garth... |
| Posted: Wed May 21, 2008 2:27 pm |
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Guest
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"Michael Black" <et472 at (no spam) ncf.ca> wrote in message
news:Pine.LNX.4.64.0805202258340.10816 at (no spam) darkstar.example.org...
Quote: On Tue, 20 May 2008, Lord Garth wrote:
"Michael Black" <et472 at (no spam) ncf.ca> wrote in message
news:Pine.LNX.4.64.0805202044150.10671 at (no spam) darkstar.example.org...
On Tue, 20 May 2008, Lord Garth wrote:
"Socrates" <news at (no spam) locutus.org> wrote in message
news:DUJYj.28089$XZ1.1658 at (no spam) fe13.usenetserver.com...
Hello,
I have an electronic quartz clock with chimes that needs a volume
control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is
there any place that makes a inline volume control that I might be
able
to
use to adjust this so it wouldn't be so loud. Please reply to the
group.
Thanks, Marty
Place a variable resistor in parallel with the speaker and adjust until
you
get a
reasonable volume. You can then replace the variable resistor with a
fix
resistor of similar value.
If it's merely a clock, chanced are good that it's a piezoelectric
transducer, ie quite high impedance. So he may need to start with
quite a high value of resistor.
Michael
He said 2.25" speaker so maybe not!
He did, I missed that.
It seems odd though, because in a straight alarm clock (as opposed to
a clock radio) all the ones I've looked at use a piezoelectric transducer.
Michael
I'd agree, it seem that only clock radios still use a speaker for the alarm.
I do like John's approach to balance the load impedance however. This
is an L pad. |
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