old US Telephone hybrid ('Network' block)

Gene Buckle geneb at deltasoft.com
Thu Mar 31 14:58:03 CDT 2011

On Thu, 31 Mar 2011, Tony Duell wrote:

>> On Wed, 30 Mar 2011, Tony Duell wrote:
>>> like disks with metal coating on the surfaces), the anti-sidetone
>>> transformer ('induction coil'. call it what you like :-)), some
>> Tony, what function does an "anti-sidetone" transformer perform?  Is it a
>> filter of some kind?
> In telephony, 'sidetone' means the signal in your receiver due to thr
> signal from your transmitter. If you are not careful, the sounds you hear
> from your own speech are son strong that the user talks too quietly. On
> the other hand, if there is no sidetone, the user is inclined to shout.
Makes sense.  I haven't touched telephone stuff since ESS became common. 
*cough* :)


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