Fw: [TenTec] Jupiter Suggestions

[Carl Moreschi]

> I used two 8 ohm to 600 back to back audio transformers on my pegasus
> to isolate the voltage on the speaker leads.  I run the pegasus speaker
> leads
> to the 8 ohm primary of transformer 1, then the 600 ohm output transformer
1
> to the 600 ohm connection of transformer 2.  Finally, the 8 ohm output of
> transformer 2 goes to a speaker that may or may not be grouned on one
side.
>
> I found this works great.  I had no luck with just trying to isolate the
> voltage
> with capacitors.  I did all this so I could feed the speaker input of my
> Timewave DS9-599zx.
>
> Carl Moreschi  N4PY
> Franklinton, North Carolina
> n4py@earthlink.net
> ----- Original Message -----
> From: "Mark Erbaugh" <mark@microenh.com>
> To: <pywacker@fuse.net>; "TenTec Mailing List" <tentec@contesting.com>
> Sent: Tuesday, April 03, 2001 12:14 AM
> Subject: Re: [TenTec] Jupiter Suggestions
>
>
> >
> > Jim,
> >
> > > Any suggestions on a good external speaker for the Jupiter? The
internal
> > > speaker is surprisingly quite good.
> >
> > I believe that the Jupiter suffers from the same problem as the Pegasus
> > regarding the speaker. The speaker must not be grounded. People have
told
> me
> > that this is mentioned in the Jupiter documentation.  Although the
Pegasus
> > has no external speaker jack, I disconnected the internal speaker and
used
> > the speaker leads to connect an external one. When I used my station
> speaker
> > (a Kenwood SP940, which was grounded), it did not work - all I got was a
> > loud buzz.  When I disconnected the speaker's ground all was fine.
> >
> > Obviously, the logic board (where the speaker output is) is at a
different
> > ground than the rest of the Pegasus.
> >
> > 73,
> > Mark
> >
> > ----- Original Message -----
> > From: <pywacker@fuse.net>
> > To: "TenTec Mailing List" <tentec@contesting.com>
> > Sent: Monday, April 02, 2001 4:31 PM
> > Subject: [TenTec] Jupiter Suggestions
> >
> >
> > >
> > > Any suggestions on a good external speaker for the Jupiter? The
internal
> > > speaker is surprisingly quite good.
> > >
> > > Also on phone I would be curious to know the transmit bandwidth,
> > processing
> > > or not, typical mic gain settings and microphone Jupiter users are
> using.
> > > If you would share this in private email I would appreciate this info.
> > >
> > > 73 de KE4WY Jim
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
> > > FAQ on WWW:               http://www.contesting.com/FAQ/tentec
> > > Submissions:              tentec@contesting.com
> > > Administrative requests:  tentec-REQUEST@contesting.com
> > > Problems:                 owner-tentec@contesting.com
> > >
> > >
> >
> >
> > --
> > FAQ on WWW:               http://www.contesting.com/FAQ/tentec
> > Submissions:              tentec@contesting.com
> > Administrative requests:  tentec-REQUEST@contesting.com
> > Problems:                 owner-tentec@contesting.com
> >
>


--
FAQ on WWW:               http://www.contesting.com/FAQ/tentec
Submissions:              tentec@contesting.com
Administrative requests:  tentec-REQUEST@contesting.com
Problems:                 owner-tentec@contesting.com