The G-Stands which have the internal base mounted amplifier does require a
9V battery installed in the base. The PTT bar on the side has contacts that
are used to turn the amp in the base on and off. There is, to my knowledge,
no provision for powering the amp from an external source. Do note that the
switching arrangement on the PTT bar switch does provide a make before break
set of contacts. These should be used to switch the DC for the amp thus
preventing a small thump when switching. The other set of contacts should
ground the input of the amp thus preventing the pop associated with the
switching. To confirm correct wiring, if you squeeze the bar slowly the
transmit should be activated before the audio is activated. As you release
the bar slowly, the audio should stop before the PTT releases the
transmitter.
As to the 2 wire mike cable, be it coiled or straight, white is audio,
shield is shield/ground, and black is PTT. This is unless someone has
replace it with something else. Anyway, remove the 3 screws that hold the
bottom cover on. There you will find a terminal strip to which all
connections can be made. And there should be a schematic attached to the
bottom plate on the inside.
While the pot is accessible through the hole in the base plate, normally
about 50% will work in most all applications. Turn it fully clockwise and
note the position, turn it fully counterclockwise and note the position and
then set it about 1/2 way in between the two. Counterclockwise is least as
long as some diligent sole hasn't changed things.
If you need a schematic, let me know and I'll scan mine and send you a JPG.
Or it may be on the internet, I haven't looked.
73
Bob, K4TAX
----- Original Message -----
From: "Geoffrey S Mendelson" <gsm@mendelson.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Tuesday, December 27, 2005 12:08 PM
Subject: Re: [TenTec] D 104 and Argonaut V
On Tue, Dec 27, 2005 at 09:56:02AM -0800, William wrote:
My son gave me a nice D 104 Silver Eagle, the one with the pre amp-I am
guessing since it has the standard mic cable, a two wire cable which I
assume is for powering the amp and a small switch on one side.
I've never seen one of those. The amplified D-104s that I have use an
internal
9 volt battery. I assume that someone decided that they did not want to
rely on a battery and added a power cable and switch.
I'm not sure of the specs for power, but many people with Kenwood
transcivers
that supply 8 volts use that for their D-104s. I did not, I just used the
internal 9 volt battery. Since they are over $5.00 each here, I may just
do it next time I need to replace the battery on one of my amplified
stands.
I would like to use this with my Argonaut V and need to know what voltage
should be supplied and any recommendations on setting the gain via the
small
pot in the base.
Start in the middle and and adjust the mic gain and and the pot until it
sounds good. Or if you prefer, leave the mic gain where it always is,
start
at the lowest setting for the pot and increase it until you get what you
want.
It depends upon whether you plan on switching mics and how often.
Geoff.
--
Geoffrey S. Mendelson, Jerusalem, Israel gsm@mendelson.com N3OWJ/4X1GM
IL Voice: (07)-7424-1667 IL Fax: 972-2-648-1443 U.S. Voice:
1-215-821-1838
The trouble with being a futurist is that when people get around to
believing
you, it's too late. We lost. Google 2,000,000:Hams 0.
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