[TenTec] Pegasus - external speaker?

Steve Ellington N4LQ@iglou.com
Thu, 23 Mar 2000 21:38:03 -0500


Don't even think about doing this! The Pegasus has + dc voltage on both
speaker leads. There is no dc isolation between the output IC and the
speaker. You may be able to use a non-polarized electrolytic in series with
the speaker leads to accomplish this. Radio Shack has them.
Steve
N4LQ
----- Original Message -----
From: "Dr. Peter G. Drexel" <telec0@oz.plymouth.edu>
To: <TenTec@contesting.com>
Sent: Thursday, March 23, 2000 4:58 PM
Subject: [TenTec] Pegasus - external speaker?


>
> I want to share an existing external speaker between my Pegasus and a
> TS930. It is relatively easy to install a phono jack parallel to the
> bottom of the Pegasus chassis. The 930 speaker allows its user to select
> between two inputs. Great!
>
> However, it seems that the TS930 grounds one of its speaker leads. I
> checked the Pegasus PC board pins (speaker disconnected).  Neither of them
> seems grounded - I get the same resistance from each of them to ground. I
> am reluctant to float the 550's speaker leads and then attach them to the
> 930 speaker. Has anyone had experience with this? Am I "out of luck" here?
>
> 73...
> Peter, AE1T
> peter.drexel@plymouth.edu
>
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