[ProAudio] Western Electric 111C transformers

CBAUDIO proaudio at baileyzone.net
Tue Feb 1 13:01:21 PST 2022

We used to call the 15 kHz lines provided by the telephone company 
'Balanced Transmission Lines' back in the day. I used them on live gigs 
that were simulcast. At Sunset Sound (Late 1970's), we ordered a pair to 
go from Capitol Records to Sunset Sound so we could use the live echo 
chambers at Capitol. It didn't work well in spite of all of our efforts.

------ Original Message ------
From: "David Josephson via ProAudio" <proaudio at bach.pgm.com>
To: "proaudio at bach.pgm.com" <proaudio at bach.pgm.com>
Sent: 2/1/2022 12:10:40 PM
Subject: Re: [ProAudio] Western Electric 111C transformers

>Because the telephone company was how radio stations sent program 
>material from remote broadcasts to the studio, and from the studio to 
>the transmitter. Many of the 111Cs people have collected were abandoned 
>on telephone backboards in radio stations.
>>On Feb 1, 2022, at 6:51 AM, Bob Katz via ProAudio 
>><proaudio at bach.pgm.com> wrote:
>>I will definitely post my results.
>>But first I have to find a place in my crowded system to put these big 
>>puppies. They are certainly among the largest piece of audio iron I've 
>>ever seen. I don't understand how a telephone company in the middle 
>>ages decided to make a transformer with such amazing bandwidth!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://bach.pgm.com/pipermail/proaudio/attachments/20220201/2f0a6b14/attachment.html>

More information about the ProAudio mailing list