Olympus-OM
[Top] [All Lists]

Re: [OM] OT - Phising phone calls

Subject: Re: [OM] OT - Phising phone calls
From: Chris Trask <christrask@xxxxxxxxxxxxx>
Date: Tue, 3 Jun 2014 14:32:36 -0700 (GMT-07:00)
>
>>      Make that 19th century.  The essential component that allows two-way 
>> transmission on a single pair 
>>of wires, the bridge (or hybrid) transformer, was a late 19th century 
>>invention.  The clue is that ground 
>>is the third conductor.
>
>
>There is still a lot of gas in that tank. 
>

     Tell me about it.  I've designed and patented a few circuits using that 
ancient device.  A little knowledge like that can take you a long way.  And 
it's the device that made the bidirectional transatlantic cable amplifiers work.


Chris

When the going gets weird, the weird turn pro 
     - Hunter S. Thompson
-- 
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz