[BC] KS-20159
Robert Orban
rorban
Fri Apr 6 16:52:31 CDT 2007
At 08:00 AM 4/6/2007, you wrote:
>To: "Broadcasters' Mailing List" <broadcast at radiolists.net>,
>broadcast at radiolists.netCc: RLO2L at aol.com
>Subject: Re: [BC] Xmitters at aol.com
>
>
>The telco 111-C "repeat coils" are available on the surplus market. They are
>probably the finest audio-frequency transformers --ever. They have four
>shielded coils and the core is a toriod made of mu-metal strip. Very
>impressive for something designed in the 1920s.
There are Jensen transformers that can outperform a 111-C, like the one we
use in our composite isolation transformer. But the 111-C was indeed an
excellent transformer and could pass composite, although not with the same
high frequency stereo separation as the Jensen.
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