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[OT] 3.5mm stereo to mono adapter with switch?

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  [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 12:29 +0000
    Re: [OT] 3.5mm stereo to mono adapter with switch? Andy Burns <usenet@andyburns.uk> - 2016-11-19 12:35 +0000
      Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 12:48 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? Andy Burns <usenet@andyburns.uk> - 2016-11-19 13:05 +0000
          Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 13:13 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? Andy Burns <usenet@andyburns.uk> - 2016-11-19 13:34 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-19 14:55 +0100
          Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 15:23 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-20 14:27 +0100
            Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 13:59 -0500
              Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-20 20:01 +0000
                Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 15:43 -0500
            Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 14:22 -0500
              Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-21 01:47 +0000
                Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-21 19:26 -0500
                Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-21 19:39 -0500
                  Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-22 04:23 +0100
                    Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-22 01:51 -0500
                      Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-22 11:22 +0000
              Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-21 15:03 +0100
        Re: [OT] 3.5mm stereo to mono adapter with switch? John #9 <john#9@Invalid.invalid> - 2016-11-19 15:30 +0000
          Re: [OT] 3.5mm stereo to mono adapter with switch? John #9 <john#9@Invalid.invalid> - 2016-11-19 15:37 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? "Brian Gaff" <briang1@blueyonder.co.uk> - 2016-11-19 17:48 +0000
          Re: [OT] 3.5mm stereo to mono adapter with switch? Terry Casey <k.type@example.invalid> - 2016-11-19 18:08 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 19:01 +0000
              Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 14:27 -0500
            Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-20 14:19 +0100
          Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 18:56 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 13:50 -0500
        Re: [OT] 3.5mm stereo to mono adapter with switch? Martin Brown <|||newspam|||@nezumi.demon.co.uk> - 2016-11-23 08:35 +0000
    Re: [OT] 3.5mm stereo to mono adapter with switch? Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> - 2016-11-19 12:41 +0000
      Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 13:07 +0000
      Re: [OT] 3.5mm stereo to mono adapter with switch? roger@hayter.org (Roger Hayter) - 2016-11-19 13:54 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 15:17 +0000
          Re: [OT] 3.5mm stereo to mono adapter with switch? lew <citrustwosac@google.mailer.company.invalid> - 2016-11-20 02:48 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? Someone Somewhere <nntpac@gmail.com> - 2016-11-20 07:59 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-20 10:30 +0000
              Re: [OT] 3.5mm stereo to mono adapter with switch? lew <citrustwosac@google.mailer.company.invalid> - 2016-11-20 17:29 +0000
            Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 14:36 -0500
          Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 14:32 -0500
            Re: [OT] 3.5mm stereo to mono adapter with switch? The Natural Philosopher <tnp@invalid.invalid> - 2016-11-20 22:08 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-20 14:22 +0100
    Re: [OT] 3.5mm stereo to mono adapter with switch? Neil <neil@myplaceofwork.com> - 2016-11-19 08:45 -0500
      Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-19 15:14 +0000
        Re: [OT] 3.5mm stereo to mono adapter with switch? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-11-20 06:13 +1100
          Re: [OT] 3.5mm stereo to mono adapter with switch? Neil <neil@myplaceofwork.com> - 2016-11-19 14:36 -0500
            Re: [OT] 3.5mm stereo to mono adapter with switch? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-11-20 08:19 +1100
              Re: [OT] 3.5mm stereo to mono adapter with switch? Neil <neil@myplaceofwork.com> - 2016-11-19 17:47 -0500
                Re: [OT] 3.5mm stereo to mono adapter with switch? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-11-20 09:53 +1100
            Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-20 14:40 -0500
              Re: [OT] 3.5mm stereo to mono adapter with switch? Neil <neil@myplaceofwork.com> - 2016-11-20 14:53 -0500
              Re: [OT] 3.5mm stereo to mono adapter with switch? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-11-21 07:40 +1100
              Re: [OT] 3.5mm stereo to mono adapter with switch? roger@hayter.org (Roger Hayter) - 2016-11-21 01:17 +0000
    Re: [OT] 3.5mm stereo to mono adapter with switch? "Brian Gaff" <briang1@blueyonder.co.uk> - 2016-11-19 17:45 +0000
      Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-20 14:27 +0100
        Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-20 18:09 +0000
          Re: [OT] 3.5mm stereo to mono adapter with switch? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-11-21 07:18 +1100
          Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-21 21:36 +0100
            Re: [OT] 3.5mm stereo to mono adapter with switch? pamela <invalid@nospam.com> - 2016-11-22 15:57 +0000
              Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-22 19:16 +0100
                Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-23 03:02 -0500
                  Re: [OT] 3.5mm stereo to mono adapter with switch? "Carlos E.R." <robin_listas@invalid.es> - 2016-11-23 14:46 +0100
                    Re: [OT] 3.5mm stereo to mono adapter with switch? micky <NONONOmisc07@bigfoot.com> - 2016-11-24 18:54 -0500

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#36051

On Sat, 19 Nov 2016 12:48:03 +0000, pamela wrote:


> Sometimes I want to plug stereo headphones into the mono socket of a
> dictation machine which means the signal connection is made only with
> the left channel of the stereo plug.
> 
> Sometimes I have a stereo source which I want to hear in mono on stereo
> headphones.
> 
> (At other times, I just want to hear a stereo source in stereo as
> usual.)

Not the answer you were looking for, but I think it will do (most of) 
what you want:

https://www.amazon.co.uk/Mono-3-5mm-Stereo-Socket-Adapter/dp/B000L1ORAC

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#36052

On Sat, 19 Nov 2016 15:30:23 +0000, John #9 wrote:

> On Sat, 19 Nov 2016 12:48:03 +0000, pamela wrote:
> 
> 
>> Sometimes I want to plug stereo headphones into the mono socket of a
>> dictation machine which means the signal connection is made only with
>> the left channel of the stereo plug.
>> 
>> Sometimes I have a stereo source which I want to hear in mono on stereo
>> headphones.
>> 
>> (At other times, I just want to hear a stereo source in stereo as
>> usual.)
> 
> Not the answer you were looking for, but I think it will do (most of)
> what you want:
> 
> https://www.amazon.co.uk/Mono-3-5mm-Stereo-Socket-Adapter/dp/B000L1ORAC

Tsk! Should've read the OP first. soz!

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#36054

Well assuming this, then you would need two adaptors I'm afraid for the 
reasons in my last message. If you can be sure shorting out a channel does 
not matter there could be a way, but its very dodgy.
 You can buy plug in stereo to mono so mono earpieces hear both channels as 
mono, you can buy a device that has a mono plug and routes the output to 
both channels of a stereo set of phones.
 Brian

-- 
 -----  -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
briang1@blueyonder.co.uk
Blind user, so no pictures please!
"pamela" <invalid@nospam.com> wrote in message 
news:XnsA6C582382F0CFD4AM2@81.171.118.178...
> On 12:35  19 Nov 2016, Andy Burns wrote:
>
>> pamela wrote:
>>
>>> I'm looking for an adapter which goes from a 3.5mm stereo plug
>>> to 3.5mm mono socket
>>> However I want the adapter to provide a mono/stereo switch.
>>
>> What would you expect the adapter to do when the switch is in
>> the stereo position?
>
> I want the stereo signal to pass through the adapter as stereo.
>
> Sometimes I want to plug stereo headphones into the mono socket of a
> dictation machine which means the signal connection is made only with
> the left channel of the stereo plug.
>
> Sometimes I have a stereo source which I want to hear in mono on
> stereo headphones.
>
> (At other times, I just want to hear a stereo source in stereo as
> usual.)
> 

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#36055

In article <o0q38o$u0r$1@dont-email.me>, briang1@blueyonder.co.uk says...
> 
> Well assuming this, then you would need two adaptors I'm afraid for the 
> reasons in my last message. If you can be sure shorting out a channel does 
> not matter there could be a way, but its very dodgy.
>  You can buy plug in stereo to mono so mono earpieces hear both channels as 
> mono, you can buy a device that has a mono plug and routes the output to 
> both channels of a stereo set of phones.
>  Brian

A simpler - and better way - is to buy a twin stereo adaptor (single male in, 
two paralleled females out) and a stereo male.

Short left to right inside the male, making sure it is marked clearly to 
avoid confusion, and simply insert it into the second female to switch stereo 
to mono.

Others have issued warnings about equipment damage so I won't repeat them 
here.

-- 

Terry

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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#36058

On 18:08  19 Nov 2016, Terry Casey wrote:

> In article <o0q38o$u0r$1@dont-email.me>,
> briang1@blueyonder.co.uk says... 
>> 
>> Well assuming this, then you would need two adaptors I'm afraid
>> for the reasons in my last message. If you can be sure shorting
>> out a channel does not matter there could be a way, but its
>> very dodgy. 
>>  You can buy plug in stereo to mono so mono earpieces hear both
>>  channels as 
>> mono, you can buy a device that has a mono plug and routes the
>> output to both channels of a stereo set of phones.
>>  Brian
> 
> A simpler - and better way - is to buy a twin stereo adaptor
> (single male in, two paralleled females out) and a stereo male.
> 
> Short left to right inside the male, making sure it is marked
> clearly to avoid confusion, and simply insert it into the second
> female to switch stereo to mono.
> 
> Others have issued warnings about equipment damage so I won't
> repeat them here.

I have been trying that (using a spare 3.5mm mono to stereo adapter 
for the "switching plug" because its build to short out the two 
signal paths).

However with the particular plugs and sockets I have tried the
insertion and extraction is very far from smooth.  It's a sort of
biggish tug or a good old shove.

One reason I wanted a switch was to make it easy to
A/B compare the mono and stereo playbacks. 

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#36097

In comp.mobile.android, on Sat, 19 Nov 2016 19:01:15 GMT, pamela
<invalid@nospam.com> wrote:

>On 18:08  19 Nov 2016, Terry Casey wrote:
>
>> In article <o0q38o$u0r$1@dont-email.me>,
>> briang1@blueyonder.co.uk says... 
>>> 
>>> Well assuming this, then you would need two adaptors I'm afraid
>>> for the reasons in my last message. If you can be sure shorting
>>> out a channel does not matter there could be a way, but its
>>> very dodgy. 
>>>  You can buy plug in stereo to mono so mono earpieces hear both
>>>  channels as 
>>> mono, you can buy a device that has a mono plug and routes the
>>> output to both channels of a stereo set of phones.
>>>  Brian
>> 
>> A simpler - and better way - is to buy a twin stereo adaptor
>> (single male in, two paralleled females out) and a stereo male.
>> 
>> Short left to right inside the male, making sure it is marked
>> clearly to avoid confusion, and simply insert it into the second
>> female to switch stereo to mono.
>> 
>> Others have issued warnings about equipment damage so I won't
>> repeat them here.
>
>I have been trying that (using a spare 3.5mm mono to stereo adapter 
>for the "switching plug" because its build to short out the two 
>signal paths).

So instead of what you're using, use the Y connector and the stereo plug
he refers to and instead of plugging and unplugging it, run a
2-conductor wire from the L hot and R hot to a switch.  For inlilne
switch recommendations, especially the second one, see my post closer to
the start of this thread. 

>However with the particular plugs and sockets I have tried the
>insertion and extraction is very far from smooth.  It's a sort of
>biggish tug or a good old shove.
>
>One reason I wanted a switch was to make it easy to
>A/B compare the mono and stereo playbacks. 

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#36077

On 2016-11-19 19:08, Terry Casey wrote:

> A simpler - and better way - is to buy a twin stereo adaptor (single male in, 
> two paralleled females out) and a stereo male.
> 
> Short left to right inside the male, making sure it is marked clearly to 
> avoid confusion, and simply insert it into the second female to switch stereo 
> to mono.
> 
> Others have issued warnings about equipment damage so I won't repeat them 
> here.

And distortion.
Proper summing of both channels can not be ensured to happen.

-- 
Cheers, Carlos.

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#36057

On 17:48  19 Nov 2016, Brian Gaff wrote:

> Well assuming this, then you would need two adaptors I'm afraid
> for the reasons in my last message. If you can be sure shorting
> out a channel does not matter there could be a way, but its very
> dodgy. 
>  You can buy plug in stereo to mono so mono earpieces hear both
>  channels as 
> mono, you can buy a device that has a mono plug and routes the
> output to both channels of a stereo set of phones.
>  Brian

That is exactly what I sometimes do but it's a bit of a fragile set 
up have 3 plugs (including the headphone plug) sticking out of a tiny 
dictation machine.

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#36094

In comp.mobile.android, on Sat, 19 Nov 2016 12:48:03 GMT, pamela
<invalid@nospam.com> wrote:

>On 12:35  19 Nov 2016, Andy Burns wrote:
>
>> pamela wrote:
>> 
>>> I'm looking for an adapter which goes from a 3.5mm stereo plug
>>> to 3.5mm mono socket
>>> However I want the adapter to provide a mono/stereo switch.
>> 
>> What would you expect the adapter to do when the switch is in
>> the stereo position?
>
>I want the stereo signal to pass through the adapter as stereo.
>
>Sometimes I want to plug stereo headphones into the mono socket of a 
>dictation machine which means the signal connection is made only with 
>the left channel of the stereo plug.  

If you have to unplug it anyhow, why not get a stereo to mono adapter
with no switch?  This will be hard enough to find because most of them
will be designed for a mono-plug.   I seem to remember seeing one but
maybe I'm thinking of a Y-connector that does this. 

iirc monoprice.com sells a wide range of adapters, they're very low
priced and shipping for a small amount is very cheap.  While  you're on
the site you may find other things you want, like a long amplified usb
cable.  Who knew? 

>Sometimes I have a stereo source which I want to hear in mono on 
>stereo headphones.

But even here, it's not that much trouble to plug the adapter in between
the two things, especially if it's a different stereo source from usual.

I say this because I'm an adapter addict, and woould have had every
adapter there was 40 years ago if I could have.  But now there are
thousands of kinnds and it's impossible, and I've never seen one with a
switch, and if it had a switch, it would be 3 times the size of one
without a switch!
>
>(At other times, I just want to hear a stereo source in stereo as 
>usual.)

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#36176

On 19/11/2016 12:48, pamela wrote:
> On 12:35  19 Nov 2016, Andy Burns wrote:
>
>> pamela wrote:
>>
>>> I'm looking for an adapter which goes from a 3.5mm stereo plug
>>> to 3.5mm mono socket
>>> However I want the adapter to provide a mono/stereo switch.
>>
>> What would you expect the adapter to do when the switch is in
>> the stereo position?
>
> I want the stereo signal to pass through the adapter as stereo.
>
> Sometimes I want to plug stereo headphones into the mono socket of a
> dictation machine which means the signal connection is made only with
> the left channel of the stereo plug.
>
> Sometimes I have a stereo source which I want to hear in mono on
> stereo headphones.
>
> (At other times, I just want to hear a stereo source in stereo as
> usual.)

Ignoring the fact that shorting amplifier outputs together isn't that 
good for them the closest to what you want to do with standard parts 
would be a headphone splitter that parallels up two 3.5mm stereo sockets 
and a mono 3.5mm plug to short left and right together. eg

http://www.ebay.co.uk/itm/3-5mm-Stereo-Jack-Headphone-Splitter-Adaptor-1-Plug-to-2-Sockets-/351762927569

You might be able to find a mono 3.5mm adapter unswitched and carry 
both. But I can't see anyone making this item... no demand ;-)

-- 
Regards,
Martin Brown

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#36038

on 19/11/2016, pamela supposed :
> I'm looking for an adapter which goes from a 3.5mm stereo plug to
> 3.5mm mono socket similar to this:
>
> http://www.mcmelectronics.com/content/productimages/s5/27-7921.jpg

DIY? Buy a short 3.5mm stereo extension lead (I bought a 12" long one 
last week), cut into it to extricate the wires for both channels, then 
add a small switch to short the two channels together. Cover switch and 
cables after testing, with some Milliput.

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#36041

On 12:41  19 Nov 2016, Harry Bloomfield wrote:

> on 19/11/2016, pamela supposed :
>>
>> I'm looking for an adapter which goes from a 3.5mm stereo plug
>> to 3.5mm mono socket similar to this:
>>
>> www.mcmelectronics.com/content/productimages/s5/27-7921.jpg 
> 
> DIY? Buy a short 3.5mm stereo extension lead (I bought a 12"
> long one last week), cut into it to extricate the wires for both
> channels, then add a small switch to short the two channels
> together. Cover switch and cables after testing, with some
> Milliput. 

It would probably be a much neater finish if it was factory made
than if I made it!

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#36046

Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote:

> on 19/11/2016, pamela supposed :
> > I'm looking for an adapter which goes from a 3.5mm stereo plug to
> > 3.5mm mono socket similar to this:
> >
> > http://www.mcmelectronics.com/content/productimages/s5/27-7921.jpg
> 
> DIY? Buy a short 3.5mm stereo extension lead (I bought a 12" long one
> last week), cut into it to extricate the wires for both channels, then
> add a small switch to short the two channels together. Cover switch and
> cables after testing, with some Milliput.

It may well be commonly done, but it is not a good idea to short the
stereo channels together.  Probably the amplifier is protected against
electrical damage but as far as the difference signal is concerned the
behaviour is probably not defined.  Either use just one channel or
connect the two stereo channels through two resistors high enough to
maintain linearity but low enough not to use all the power.  The value
obviously depends what the load is and what load the amplifier is
intended for.  

-- 

Roger Hayter

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#36049

On 13:54  19 Nov 2016, Roger Hayter wrote: 

> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote: 
> 
>> on 19/11/2016, pamela supposed : 
>> > I'm looking for an adapter which goes from a 3.5mm stereo 
>> > plug to 3.5mm mono socket similar to this: 
>> >
>> > http://www.mcmelectronics.com/content/productimages/s5/27-7921
>> > .jpg 
>> 
>> DIY? Buy a short 3.5mm stereo extension lead (I bought a 12" 
>> long one last week), cut into it to extricate the wires for 
>> both channels, then add a small switch to short the two 
>> channels together. Cover switch and cables after testing, with 
>> some Milliput. 
> 
> It may well be commonly done, but it is not a good idea to short 
> the stereo channels together.  Probably the amplifier is 
> protected against electrical damage but as far as the difference 
> signal is concerned the behaviour is probably not defined. 
> Either use just one channel or connect the two stereo channels 
> through two resistors high enough to maintain linearity but low 
> enough not to use all the power.  The value obviously depends 
> what the load is and what load the amplifier is intended for.  

That's quite right but this is a quick and dirty fix for all those
many amps which very inconsiderately do not provide a switchable 
stereo/mono output at the times I need one.   :-)

The world's gone stereo mad!

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#36073

["Followup-To:" header set to comp.mobile.android.]
On 2016-11-19, pamela <invalid@nospam.com> wrote:
> On 13:54  19 Nov 2016, Roger Hayter wrote: 
>
>> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote: 
>> 
>>> on 19/11/2016, pamela supposed : 
>>> > I'm looking for an adapter which goes from a 3.5mm stereo 
>>> > plug to 3.5mm mono socket similar to this: 
>>> >
>>> > http://www.mcmelectronics.com/content/productimages/s5/27-7921
>>> > .jpg 
>>> 

I think that "http://www.monoprice.com/product?p_id=7128" would do the
trick for getting "stereo" output from the mono dictation machine.
A feedback says that it worked with a mono out to a stereo headphone
to hear with both ears.

The pic of your adaptor don't make sense to me if the problem was
being able to listen with only 1 side of a stereo earphone/headphone.
The mono plug to stereo jack do work.  Radio Shack had carried all
kinds of adaptors & a big shame that they no longer have storefronts.

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#36074

On 20/11/2016 02:48, lew wrote:
> ["Followup-To:" header set to comp.mobile.android.]
> On 2016-11-19, pamela <invalid@nospam.com> wrote:
>> On 13:54  19 Nov 2016, Roger Hayter wrote:
>>
>>> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote:
>>>
>>>> on 19/11/2016, pamela supposed :
>>>>> I'm looking for an adapter which goes from a 3.5mm stereo
>>>>> plug to 3.5mm mono socket similar to this:
>>>>>
>>>>> http://www.mcmelectronics.com/content/productimages/s5/27-7921
>>>>> .jpg
>>>>
>
> I think that "http://www.monoprice.com/product?p_id=7128" would do the
> trick for getting "stereo" output from the mono dictation machine.
> A feedback says that it worked with a mono out to a stereo headphone
> to hear with both ears.
>
> The pic of your adaptor don't make sense to me if the problem was
> being able to listen with only 1 side of a stereo earphone/headphone.
> The mono plug to stereo jack do work.  Radio Shack had carried all
> kinds of adaptors & a big shame that they no longer have storefronts.
>
But given the OP is based in the UK, we still have Maplin which carry a 
similar thing:

http://www.maplin.co.uk/p/35mm-mono-plug-to-35mm-stereo-socket-adapter-fk14q

(as usual, Maplin isn't necessarily the cheapest route, but it's easy if 
you're near a shop)

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#36076

On 02:48  20 Nov 2016, lew wrote:

> ["Followup-To:" header set to comp.mobile.android.]
> On 2016-11-19, pamela <invalid@nospam.com> wrote:
>> On 13:54  19 Nov 2016, Roger Hayter wrote: 
>>
>>> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote: 
>>> 
>>>> on 19/11/2016, pamela supposed : 
>>>> >
>>>> >
>>>> > I'm looking for an adapter which goes from a 3.5mm stereo 
>>>> > plug to 3.5mm mono socket similar to this: 
>>>> >
>>>> >www.mcmelectronics.com/content/productimages/s5/27-7921.jpg 
>>>> 
> 
> I think that "http://www.monoprice.com/product?p_id=7128" would
> do the trick for getting "stereo" output from the mono dictation
> machine. A feedback says that it worked with a mono out to a
> stereo headphone to hear with both ears.

Your picture of a mono to stereo adapter would give the result I 
want but I would like its effect to be switchable so that at other 
times the adapter passes the stereo signal through uninterrupted.

> The pic of your adaptor don't make sense to me if the problem
> was being able to listen with only 1 side of a stereo
> earphone/headphone. The mono plug to stereo jack do work.  Radio
> Shack had carried all kinds of adaptors & a big shame that they
> no longer have storefronts. 

What I said above should make it clear why I used that picture.

I have an adapter I have which splits the signal from a 3.5mm 
socket to two 3.5mm sockets each with its own volume control.  
(The volume controls don't work well and interact with each other 
but that isn't the point.)  

www.kenable.co.uk/product_thumb.php?img=images/00014038.jpg

So I reckoned if you can get a product which contains a small 
circuit board and two rotary volume controls neatly packagaed in 
an adapter then someone somewhere must be manufacturing a 
barrel/cartridge adapter with a tiny switch to short the two 
signal leads.  It seems not.

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#36089

On 2016-11-20, pamela <invalid@nospam.com> wrote:
> On 02:48  20 Nov 2016, lew wrote:
>
>> ["Followup-To:" header set to comp.mobile.android.]
>> On 2016-11-19, pamela <invalid@nospam.com> wrote:
>>> On 13:54  19 Nov 2016, Roger Hayter wrote: 
>>>
>>>> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote: 
>>>> 
>>>>> on 19/11/2016, pamela supposed : 
>>>>> >
>>>>> >
>>>>> > I'm looking for an adapter which goes from a 3.5mm stereo 
>>>>> > plug to 3.5mm mono socket similar to this: 
>>>>> >
>>>>> >www.mcmelectronics.com/content/productimages/s5/27-7921.jpg 
>>>>> 
>> 
>> I think that "http://www.monoprice.com/product?p_id=7128" would
>> do the trick for getting "stereo" output from the mono dictation
>> machine. A feedback says that it worked with a mono out to a
>> stereo headphone to hear with both ears.
>
> Your picture of a mono to stereo adapter would give the result I 
> want but I would like its effect to be switchable so that at other 
> times the adapter passes the stereo signal through uninterrupted.
>
>> The pic of your adaptor don't make sense to me if the problem
>> was being able to listen with only 1 side of a stereo
>> earphone/headphone. The mono plug to stereo jack do work.  Radio
>> Shack had carried all kinds of adaptors & a big shame that they
>> no longer have storefronts. 
>
> What I said above should make it clear why I used that picture.
>
> I have an adapter I have which splits the signal from a 3.5mm 
> socket to two 3.5mm sockets each with its own volume control.  
> (The volume controls don't work well and interact with each other 
> but that isn't the point.)  
>
> www.kenable.co.uk/product_thumb.php?img=images/00014038.jpg
>
> So I reckoned if you can get a product which contains a small 
> circuit board and two rotary volume controls neatly packagaed in 
> an adapter then someone somewhere must be manufacturing a 
> barrel/cartridge adapter with a tiny switch to short the two 
> signal leads.  It seems not.
>
Don't think an adapter like that exists as it would also be bulky.
I had an adapter for 2.5 to 3.5 mm with a volume control BUT it
was really an adapter cable as it was some years back & a simple
adapter was unavilable.  Perhaps another "solution" would be more
bulky like a separate headphone switch box with various output
configurations may be found.

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#36099

In comp.mobile.android, on Sun, 20 Nov 2016 02:48:44 -0000 (UTC), lew
<citrustwosac@google.mailer.company.invalid> wrote:

>
>The pic of your adaptor don't make sense to me if the problem was
>being able to listen with only 1 side of a stereo earphone/headphone.
>The mono plug to stereo jack do work.  Radio Shack had carried all
>kinds of adaptors & a big shame that they no longer have storefronts.

Yes they do.  Not nearly as many but there are two or more in Baltimore.
(I only paid attention to the ones near me.) 

And they don't have their fantastic webpage anymore, but I was told a
few months ago that they were working on one. 

And I'm sure they don't have all the same inventory, but they had some.
I usually only buy little parts and they had quite a few drawers with
multiple sections. . 

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#36098

In comp.mobile.android, on Sat, 19 Nov 2016 15:17:56 GMT, pamela
<invalid@nospam.com> wrote:

>On 13:54  19 Nov 2016, Roger Hayter wrote: 
>
>> Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> wrote: 
>> 
>>> on 19/11/2016, pamela supposed : 
>>> > I'm looking for an adapter which goes from a 3.5mm stereo 
>>> > plug to 3.5mm mono socket similar to this: 
>>> >
>>> > http://www.mcmelectronics.com/content/productimages/s5/27-7921
>>> > .jpg 
>>> 
>>> DIY? Buy a short 3.5mm stereo extension lead (I bought a 12" 
>>> long one last week), cut into it to extricate the wires for 
>>> both channels, then add a small switch to short the two 
>>> channels together. Cover switch and cables after testing, with 
>>> some Milliput. 
>> 
>> It may well be commonly done, but it is not a good idea to short 
>> the stereo channels together.  Probably the amplifier is 
>> protected against electrical damage but as far as the difference 
>> signal is concerned the behaviour is probably not defined. 
>> Either use just one channel or connect the two stereo channels 
>> through two resistors high enough to maintain linearity but low 
>> enough not to use all the power.  The value obviously depends 
>> what the load is and what load the amplifier is intended for.  
>
>That's quite right but this is a quick and dirty fix for all those
>many amps which very inconsiderately do not provide a switchable 
>stereo/mono output at the times I need one.   :-)
>
>The world's gone stereo mad!

That's true. 

The Bilderberg Group, the World Alliance for Progress, and the Ladies
Decency Society decided about 20 years ago to abolish mono, so as to be
able to say one thing in one of our ears and something else, something
more sinister from a free person's point of view.   It took them 4 years
to organize and start implementation but they 've been at it for 16
years now. 

The Ladies Decency Society was originally about propriety, morality, the
quality of public speech, etc. just as the name implies, but it was
taken over by drug-using pot-smoking hippies and now its goals are
entirely different. 

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