I might have one down in the junk box, let me look.
On Wed, 13 Jun 2001, Patrick Perdue wrote:
> Date: Wed, 13 Jun 2001 04:01:15 -0400
> From: Patrick Perdue <[log in to unmask]>
> Reply-To: Blind-Hams For blind ham radio operators
<[log in to unmask]>
> To: [log in to unmask]
> Subject: slightly ot building a phone patch
>
> Hi folks:
> I am attempting to build a phone patch, but I can't seem to find either an
> F-111 or F-111-A isolation transformer wich I would need to isolate the line
> from the ground. Can anyone tell me where I can get one, and also where can
> I find articles on stuff like this? Thanks.
>