I don't know for sure about the Jupiter but it it's like the Pegasus, the
speaker leads have +5 volts dc on them and neither lead is grounded. I would
love to know what the thinking was behind that design.
Possibly since the Jupiter has a speaker jack, unlike the Pegasus, isolation
capacitors may have been installed thus eliminating the dc voltage problem
but still presenting unusual problems with ground isolation.
As for speaker types. I prefer speakers that take a very small amount of
drive. Few are made these days. Old communication speakers had very small
magnets and just a few milliwatts would drive them. Modern speakers strive
for heavy bass response and usually have large magnets.
Look at hamfest for old Heathkit spreakers such as the HS-1661, my favorite.
Big 12" Hallicrafter, National and Hammarlund speakers always sound nice
too. For cw get an MFJ 281 ClearTone for $12.
Steve Ellington
N4LQ
-----Original Message-----
From: pywacker@fuse.net <pywacker@fuse.net>
To: TenTec Mailing List <tentec@contesting.com>
To: <tentec@contesting.com>
Date: Monday, April 02, 2001 4:34 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
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